CN104682188A - Stimulated brillouin scattering-based modularized non-collinear serial beam combination laser device - Google Patents
Stimulated brillouin scattering-based modularized non-collinear serial beam combination laser device Download PDFInfo
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Abstract
The invention provides a stimulated brillouin scattering-based modularized non-collinear serial beam combination laser device, relates to a laser serial beam combination technology, and aims at solving the problems that when a plurality of beams of laser are subjected to serial beam combination, the traditional platform structure is large in occupied area, and the integration degree of seed light and a pumping light module is low to cause the incapability of effective superposing due to the quantity of laser beams. The stimulated brillouin scattering-based modularized non-collinear serial beam combination laser device comprises a beam combination laser device main body, m layers of non-collinear brillouin amplification units I and n layers of non-collinear brillouin amplification units II, wherein the m layers of non-collinear brillouin amplification units I and n layers of non-collinear brillouin amplification units II are superposed on the beam combination laser device main body layer by layer in a crossing manner so as to amplify the seed light stepwise. The space distribution of all modules is simple, the modules are superposed by adopting a three-dimensional structure, the system is compact in distribution, and the occupation area is small. The quantity of the amplification units can be increased or decreased according to the demand of output energy, the assembling efficiency and stability of a laser system can be improved, and the stimulated brillouin scattering-based modularized non-collinear serial beam combination laser device is applicable to high-energy and high-power solid beam combination laser devices.
Description
Technical field
The present invention relates to the non-colinear serial group bundle technology based on stimulated Brillouin scattering, belong to laser field.
Background technology
In recent years, there is macro-energy, repetition rate, high light beam quality solid state laser have a wide range of applications in fields such as industry, scientific researches.At present, effectively can be overcome the technical barriers such as the size of gain media, thermal impact and damage threshold by the technological means of multi beam low-power, little energy laser being carried out synthesizing, realize macro-energy, high power laser light exports.Stimulated Brillouin scattering (SBS) non-colinear serial group bundle based on nonlinear optics phase conjugation principle have that structure is simple, output beam quality good and the beam quality of pumping light and stability to advantages such as output influence of light are little, be subject to the extensive concern of scientific research personnel.
But the laser beam combination plant area area of traditional platform formula is large, between seed light and pumping optical module, integration degree is low, and along with laser beam quantity increases, the spatial arrangement of device is more complicated, very difficult realizes further effectively superposition, and stability is deteriorated thereupon.
Summary of the invention
The object of the invention is in order to solve some Shu Jiguang carry out serial group bundle time, traditional flatlike structure floor space is large, between seed light and pumping optical module, integration degree is low, cause laser beam quantity cannot realize the problem of effectively superposition further, a kind of modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering is provided.
Modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering of the present invention, comprise beam laser main body, m layer non-colinear Brillouin amplification unit one and n layer non-colinear Brillouin amplification unit two, n=m or n=m-1, m are natural number, and m >=1;
Described beam laser main body comprises single longitudinal mode laser 1, optical isolator 1, 1/2 wave plate 1, polarizer 1, optical isolator 27, multiple pumping light amplification module 1, seed light generation module 9, medium pool 1, optical trap 1, total reflective mirror 1 and polarization spectro module 1, the light beam of single longitudinal mode laser 1 outgoing is successively through optical isolator 1, two bundles are divided into after 1/2 wave plate 1 and polarizer 1, a branch of reflection through polarization spectro module 1 enters ground floor non-colinear Brillouin amplification unit one, another bundle is after optical isolator 27, enter multiple pumping light amplification module 1 successively, pumping light after each pumping light amplification module 1 is amplified enters medium pool 1, optical trap 1 is incident to from the pumping light of medium pool 1 outgoing, the seed light that seed light generation module 9 produces is incident to medium pool 1, all crossing in medium pool 1 with seed light from the pumping light of multiple pumping light amplification module 1 outgoing, ground floor non-colinear Brillouin amplification unit one is entered by total reflective mirror 1 reflection from the seed light of medium pool 1 outgoing,
Non-colinear Brillouin amplification unit one comprises total reflective mirror 3 15, medium pool 2 16, optical trap 2 17, total reflective mirror 4 18, multiple pumping light amplification module 2 19, polarization spectro module 2 20 and polarizer 4 21;
In ground floor non-colinear Brillouin amplification unit one: the seed light entered is incident to medium pool 2 16 after total reflective mirror 3 15 reflects, seed light after this medium pool 2 16 amplifies is incident to total reflective mirror 4 18 and is entered in ground floor non-colinear Brillouin amplification unit two by the reflection of this total reflective mirror 4 18, the pumping light entering this layer of non-colinear Brillouin amplification unit one is incident to polarization spectro module 2 20, and be polarized spectral module 2 20 and be divided into reverberation and transmitted light, described transmitted light enters in ground floor non-colinear Brillouin amplification unit two, described reverberation enters multiple pumping light amplification module 2 19 successively after polarizer 4 21 reflects, pumping light after each pumping light amplification module 2 19 is amplified enters medium pool 2 16, all crossing in medium pool 2 16 with seed light from the pumping light of multiple pumping light amplification module 2 19 outgoing, optical trap 2 17 is incident to from the pumping light of medium pool 2 16 outgoing,
Described non-colinear Brillouin amplification unit two comprises total reflective mirror 6 22, medium pool 3 23, optical trap 3 24, total reflective mirror 7 25, multiple pumping light amplification module 3 26, polarization spectro module 3 27 and polarizer 6 28;
In ground floor non-colinear Brillouin amplification unit two: the seed light entered enters medium pool 3 23 after total reflective mirror 6 22 reflects, seed light after this medium pool 3 23 amplifies is incident to total reflective mirror 7 25, and entered in next layer of non-colinear Brillouin amplification unit one after the reflection of this total reflective mirror 7 25, the pumping light entering this layer of non-colinear Brillouin amplification unit two is incident to polarization spectro module 3 27, and be polarized spectral module 3 27 and be divided into reverberation and transmitted light, described transmitted light enters in lower one deck non-colinear Brillouin amplification unit one, described reverberation enters multiple pumping light amplification module 3 26 successively after polarizer 6 28 reflects, pumping light after each pumping light amplification module 3 26 is amplified enters medium pool 3 23, all crossing in medium pool 3 23 with seed light from the pumping light of multiple pumping light amplification module 3 26 outgoing, optical trap 3 24 is incident to from the pumping light of medium pool 3 23 outgoing,
M layer non-colinear Brillouin amplification unit one and n layer non-colinear Brillouin amplification unit two are interspersed mutually to be arranged, that is: be incident to the total reflective mirror 6 22 of lower one deck non-colinear Brillouin amplification unit two from the seed light of every layer of non-colinear Brillouin amplification unit one outgoing, be incident to the total reflective mirror 3 15 of lower one deck non-colinear Brillouin amplification unit one from the seed light of this layer of non-colinear Brillouin amplification unit two outgoing; The pumping light of going out from polarization spectro module 2 20 transmission of every layer of non-colinear Brillouin amplification unit one is incident to the polarization spectro module 3 27 of lower one deck non-colinear Brillouin amplification unit two, and the pumping light of going out from this polarization spectro module 3 27 transmission is incident to the polarization spectro module 2 20 of lower one deck non-colinear Brillouin amplification unit one.
Intert successively from the seed light of beam laser main body outgoing and enter non-colinear Brillouin amplification unit one and non-colinear Brillouin amplification unit two, the direction of propagation of seed light is snakelike.
A polarization spectro module is all comprised in every layer of non-colinear Brillouin amplification unit one and non-colinear Brillouin amplification unit two, pumping light is successively through multiple polarization spectro module, often after a polarization spectro module, the pumping light of reflection enters non-colinear Brillouin amplification unit one or the non-colinear Brillouin amplification unit two at this polarization spectro module place, and the pumping light of transmission enters next polarization spectro module.
Whole laser is divided into multiple module by the present invention, i.e. beam laser main body and some non-colinear Brillouin amplification unit one and non-colinear Brillouin amplification unit two, the spatial arrangement of described module is simple, and intermodule adopts stereochemical structure to stack, and system layout is compact, floor space is little.According to increasing the needs exporting energy or reducing the quantity of amplifying unit, efficiency of assembling and the stability of laser system can be improved, is applicable to macro-energy and high power solid beam laser.
Accompanying drawing explanation
Fig. 1 is the structural representation of the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering described in execution mode one;
Fig. 2 is the direction of propagation schematic diagram of the seed light in execution mode one;
Fig. 3 is the direction of propagation schematic diagram of the pumping light in execution mode one;
Fig. 4 is the structural representation of the beam laser main body in execution mode four;
Fig. 5 is the structural representation of the non-colinear Brillouin amplification unit one in execution mode six;
Fig. 6 is the structural representation of the non-colinear Brillouin amplification unit two in execution mode eight.
Embodiment
Embodiment one: composition graphs 1 to Fig. 3 illustrates present embodiment, the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering described in present embodiment, comprise beam laser main body, m layer non-colinear Brillouin amplification unit one and n layer non-colinear Brillouin amplification unit two, n=m or n=m-1, m is natural number, and m >=1;
Described beam laser main body comprises single longitudinal mode laser 1, optical isolator 1, 1/2 wave plate 1, polarizer 1, optical isolator 27, multiple pumping light amplification module 1, seed light generation module 9, medium pool 1, optical trap 1, total reflective mirror 1 and polarization spectro module 1, the light beam of single longitudinal mode laser 1 outgoing is successively through optical isolator 1, two bundles are divided into after 1/2 wave plate 1 and polarizer 1, a branch of reflection through polarization spectro module 1 enters ground floor non-colinear Brillouin amplification unit one, another bundle is after optical isolator 27, enter multiple pumping light amplification module 1 successively, pumping light after each pumping light amplification module 1 is amplified enters medium pool 1, optical trap 1 is incident to from the pumping light of medium pool 1 outgoing, the seed light that seed light generation module 9 produces is incident to medium pool 1, all crossing in medium pool 1 with seed light from the pumping light of multiple pumping light amplification module 1 outgoing, ground floor non-colinear Brillouin amplification unit one is entered by total reflective mirror 1 reflection from the seed light of medium pool 1 outgoing,
Non-colinear Brillouin amplification unit one comprises total reflective mirror 3 15, medium pool 2 16, optical trap 2 17, total reflective mirror 4 18, multiple pumping light amplification module 2 19, polarization spectro module 2 20 and polarizer 4 21;
In ground floor non-colinear Brillouin amplification unit one: the seed light entered is incident to medium pool 2 16 after total reflective mirror 3 15 reflects, seed light after this medium pool 2 16 amplifies is incident to total reflective mirror 4 18 and is entered in ground floor non-colinear Brillouin amplification unit two by the reflection of this total reflective mirror 4 18, the pumping light entering this layer of non-colinear Brillouin amplification unit one is incident to polarization spectro module 2 20, and be polarized spectral module 2 20 and be divided into reverberation and transmitted light, described transmitted light enters in ground floor non-colinear Brillouin amplification unit two, described reverberation enters multiple pumping light amplification module 2 19 successively after polarizer 4 21 reflects, pumping light after each pumping light amplification module 2 19 is amplified enters medium pool 2 16, all crossing in medium pool 2 16 with seed light from the pumping light of multiple pumping light amplification module 2 19 outgoing, optical trap 2 17 is incident to from the pumping light of medium pool 2 16 outgoing,
Described non-colinear Brillouin amplification unit two comprises total reflective mirror 6 22, medium pool 3 23, optical trap 3 24, total reflective mirror 7 25, multiple pumping light amplification module 3 26, polarization spectro module 3 27 and polarizer 6 28;
In ground floor non-colinear Brillouin amplification unit two: the seed light entered enters medium pool 3 23 after total reflective mirror 6 22 reflects, seed light after this medium pool 3 23 amplifies is incident to total reflective mirror 7 25, and entered in next layer of non-colinear Brillouin amplification unit one after the reflection of this total reflective mirror 7 25, the pumping light entering this layer of non-colinear Brillouin amplification unit two is incident to polarization spectro module 3 27, and be polarized spectral module 3 27 and be divided into reverberation and transmitted light, described transmitted light enters in lower one deck non-colinear Brillouin amplification unit one, described reverberation enters multiple pumping light amplification module 3 26 successively after polarizer 6 28 reflects, pumping light after each pumping light amplification module 3 26 is amplified enters medium pool 3 23, all crossing in medium pool 3 23 with seed light from the pumping light of multiple pumping light amplification module 3 26 outgoing, optical trap 3 24 is incident to from the pumping light of medium pool 3 23 outgoing,
M layer non-colinear Brillouin amplification unit one and n layer non-colinear Brillouin amplification unit two are interspersed mutually to be arranged, that is: be incident to the total reflective mirror 6 22 of lower one deck non-colinear Brillouin amplification unit two from the seed light of every layer of non-colinear Brillouin amplification unit one outgoing, be incident to the total reflective mirror 3 15 of lower one deck non-colinear Brillouin amplification unit one from the seed light of this layer of non-colinear Brillouin amplification unit two outgoing; The pumping light of going out from polarization spectro module 2 20 transmission of every layer of non-colinear Brillouin amplification unit one is incident to the polarization spectro module 3 27 of lower one deck non-colinear Brillouin amplification unit two, and the pumping light of going out from this polarization spectro module 3 27 transmission is incident to the polarization spectro module 2 20 of lower one deck non-colinear Brillouin amplification unit one.
As shown in Figure 1, whole laser is divided into multiple module by present embodiment, i.e. beam laser main body, some non-colinear Brillouin amplification unit one and non-colinear Brillouin amplification unit two, beam laser main body is used for producing seed light and pumping light, and seed light is amplified, m layer non-colinear Brillouin amplification unit one and n layer non-colinear Brillouin amplification unit two successively intersect and are superimposed upon in beam laser main body, and seed light is amplified step by step.
In beam laser, non-colinear Brillouin amplification unit one and non-colinear Brillouin amplification unit two, seed light enters medium pool from the two ends that medium pool is relative respectively with pumping light, but seed light and pumping light in a certain angle, pumping light interacts with seed light in medium pool, after amplifying seed light, remaining pumping light enters optical trap.
As depicted in figs. 1 and 2, total reflective mirror 1, total reflective mirror 3 15 and total reflective mirror 7 25 are in the same side of each module (module here refers to beam laser, non-colinear Brillouin amplification unit one and non-colinear Brillouin amplification unit two), and total reflective mirror 4 18 and total reflective mirror 6 22 are in the other side of each module.
Seed light 10 is incident to ground floor non-colinear Brillouin amplification unit one by total reflective mirror 1 and total reflective mirror 3 15, ground floor non-colinear Brillouin amplification unit two is incident to by total reflective mirror 4 18 and total reflective mirror 6 22, second layer non-colinear Brillouin amplification unit one is incident to again, by that analogy by total reflective mirror 7 25 and total reflective mirror 3 15.
As shown in figures 1 and 3, pumping light 6 is transmitted to non-colinear Brillouin amplification unit one and non-colinear Brillouin amplification unit two by polarization spectro module 1, pumping light 6 is incident to non-colinear Brillouin amplification unit one by polarization spectro module 2 20 part, remaining pumping light 6 transfers to polarization spectro module 3 27, pumping light 6 is incident to non-colinear Brillouin amplification unit two by polarization spectro module 3 27 part, remaining pumping light 6 transfers to the polarization spectro module 2 20 of second layer non-colinear Brillouin amplification unit one, by that analogy.
As n=m, amplify light finally from m layer non-colinear Brillouin amplification unit two, namely total number of plies 2m+1 layer exports; As n=m-1, amplify light and finally export from m-1 layer non-colinear Brillouin amplification unit two, namely total number of plies 2m layer exports.
During use, beam laser main body, m layer non-colinear Brillouin amplification unit one and n layer non-colinear Brillouin amplification unit two is only needed simply to assemble, beam laser main body and some non-colinear Brillouin amplification unit one and non-colinear Brillouin amplification unit two can be made into identical external dimensions, each module volume arrangement is simple, intermodule adopts stereochemical structure to stack, and system layout is compact, floor space is little.According to the quantity increasing or reduce non-colinear Brillouin amplification unit one and non-colinear Brillouin amplification unit two to the needs exporting energy, efficiency of assembling and the stability of laser system can be improved.
As shown in Figure 1, in order to make structure compacter, single longitudinal mode laser 1 can not with optical isolator one 3,1/2 wave plate 1 and polarizer 1 coaxial, now, need between single longitudinal mode laser 1 and optical isolator 1, to increase light beam deviation assembly 2, for changing laser propagation direction.
Embodiment two: composition graphs 4 illustrates present embodiment, present embodiment limits further the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering described in execution mode one, in present embodiment, described seed light generation module 9 comprises 1/2 wave plate three 9-1, polarizer three 9-2, amplifier two 9-3, polarization apparatus two 9-4, condenser lens 9-5, seed light produces pond 9-6 and amplifier three 9-7, the pumping light entering seed light generation module 9 is incident to polarizer three 9-2 after 1/2 wave plate three 9-1 transmission, and be divided into reverberation and transmitted light by this polarizer three 9-2, described transmitted light enters pumping light amplification module 1, described reverberation is successively through amplifier two 9-3, enter seed light after polarization apparatus two 9-4 and condenser lens 9-5 and produce pond 9-6, seed light produces the seed light of pond 9-6 generation successively through condenser lens 9-5, polarization apparatus two 9-4, amplifier two 9-3, after polarizer three 9-2 and amplifier three 9-7, be incident to medium pool 1.
As shown in Figure 4, in present embodiment, polarizer three 9-2, amplifier two 9-3, polarization apparatus two 9-4, condenser lens 9-5, seed light produce pond 9-6, amplifier three 9-7, medium pool 1 and the coaxial setting of optical trap 1, the center of optical trap 1 is provided with gap, enters medium pool 1 from the seed light of amplifier three 9-7 outgoing through this gap.
Embodiment three: composition graphs 4 illustrates present embodiment, present embodiment limits further the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering described in execution mode two, in present embodiment, described pumping light amplification module 1 comprises 1/2 wave plate two 8-1, polarizer two 8-2, amplifier one 8-3, polarization apparatus one 8-4, full-reflector one 8-5 and total reflective mirror two 8-6, pumping light enters in described pumping light amplification module 1 through 1/2 wave plate two 8-1, polarizer two 8-2 is incident to from the pumping light of 1/2 wave plate two 8-1 transmission, and be divided into reverberation and transmitted light by this polarizer two 8-2, wherein transmitted light enters next pumping light amplification module 1, reverberation is successively through amplifier one 8-3 and polarization apparatus one 8-4, then be totally reflected device one 8-5 reflection Hou Yanyuan road to return, the pumping light returned is incident to total reflective mirror two 8-6 after polarizer two 8-2 transmission, and entered medium pool 1 by total reflective mirror two 8-6 reflection.
As shown in Figure 4, all pumping light amplification modules 1 are entered successively from the pumping light of optical isolator 27 outgoing, and often after 1/2 wave plate two 8-1, pumping light is just divided into two-beam, i.e. reverberation and transmitted light, reverberation enters the pumping light amplification module 1 at this 1/2 wave plate two 8-1 place, and transmitted light enters 1/2 wave plate two 8-1 in next pumping light amplification module 1.
Polarizer two 8-2, amplifier one 8-3, polarization apparatus one 8-4, full-reflector one 8-5 and the coaxial setting of total reflective mirror two 8-6, and this axle is parallel with the axle in seed light generation module 9, makes seed light generation module 9 structure compacter, reduces plant area area.
Embodiment four: composition graphs 4 illustrates present embodiment, present embodiment limits further the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering described in execution mode three, in present embodiment, the quantity of pumping light amplification module 1 is even number, and multiple pumping light amplification module 1 is symmetrically distributed in the both sides of seed light generation module 9.
In present embodiment, the quantity of the pumping light amplification module 1 of seed light 10 both sides is equal, and the pumping light 6 of both sides is symmetrical, to improve the uniformity of amplifying rear seed light 10 light beam.
Embodiment five: composition graphs 5 illustrates present embodiment, present embodiment limits further the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering described in execution mode three, in present embodiment, described pumping light amplification module 2 19 is identical with the structure of pumping light amplification module 1.
As shown in Figure 5, in present embodiment, pumping light amplification module 2 19 comprises 1/2 wave plate four 19-1, polarizer five 19-2, amplifier four 19-3, polarization apparatus three 19-4, full-reflector two 19-5 and total reflective mirror five 19-6, and structure and the principle of pumping light amplification module 2 19 and pumping light amplification module 1 are all identical.
Pumping light is after polarizer 4 21 reflects, be incident to 1/2 wave plate four 19-1, and be divided into two-beam by this 1/2 wave plate four 19-1, i.e. reverberation and transmitted light, described transmitted light is incident to 1/2 wave plate four 19-1 of next pumping light amplification module 2 19, and described reverberation enters medium pool 2 16 after transmitting in this pumping light amplification module 2 19.
Embodiment six: composition graphs 5 illustrates present embodiment, present embodiment limits further the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering described in execution mode five, in present embodiment, the quantity of pumping light amplification module 2 19 is even number, and multiple pumping light amplification module 2 19 is symmetrically distributed in the both sides of medium pool 2 16.
In present embodiment, pumping light is symmetrical about the seed light in medium pool, can improve the uniformity of seed light 10 light beam after amplifying.
Embodiment seven: composition graphs 6 illustrates present embodiment, present embodiment limits further the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering described in execution mode five, in present embodiment, pumping light amplification module 3 26 comprises 1/2 wave plate five 26-1, polarizer seven 26-2, amplifier five 26-3, polarization apparatus four 26-4, full-reflector three 26-5, total reflective mirror eight 26-6 and total reflective mirror nine 26-7, pumping light enters in described pumping light amplification module 3 26 through 1/2 wave plate five 26-1, polarizer seven 26-2 is incident to from the pumping light of 1/2 wave plate five 26-1 transmission, and be divided into reverberation and transmitted light by this polarizer seven 26-2, wherein transmitted light enters next pumping light amplification module 3 26, reverberation is successively through amplifier five 26-3 and polarization apparatus four 26-4, then be totally reflected device three 26-5 reflection Hou Yanyuan road to return, the pumping light returned is after polarizer seven 26-2 transmission, medium pool 3 23 is entered successively again through total reflective mirror eight 26-6 and total reflective mirror nine 26-7 reflection.
As shown in Figure 6, pumping light amplification module 3 26 adds total reflective mirror nine 26-7 on the basis of pumping light amplification module 2 19, to guarantee seed light and pumping light respectively from two relative surface feeding sputterings of medium pool 3 23.
Embodiment eight: composition graphs 6 illustrates present embodiment, present embodiment limits further the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering described in execution mode seven, in present embodiment, the quantity of described pumping light amplification module 3 26 is even number, and multiple pumping light amplification module 3 26 is symmetrically distributed in the both sides of the medium pool 3 23 in this non-colinear Brillouin amplification unit two.
In present embodiment, pumping light is symmetrical about the seed light in medium pool, can improve the uniformity of seed light 10 light beam after amplifying.
For pumping light amplification module 1, pumping light amplification module 2 19 and pumping light amplification module 3 26, incident pumping light is vertical polarization, 1/2 wave plate is used for part or all of pumping polarisation of light state to be converted to horizontal polarization by vertical polarization, polarizer is used for pumping light to be divided into two parts, i.e. horizontal polarization Transmission light, orthogonal polarized light reflection.
Embodiment nine: present embodiment limits further the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering described in execution mode one, in present embodiment, in medium pool 1, medium pool 2 16 and medium pool 3 23, seed light and pumping light are linearly polarized light.
Embodiment ten: composition graphs 2 illustrates present embodiment, present embodiment limits further the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering described in execution mode eight, in present embodiment, medium pool 1, medium pool 2 16 are all parallel with the direction of propagation of the seed light in medium pool 3 23.
In present embodiment, the direction of propagation of the seed light in All Media pond is all parallel to each other, and this structure is compacter, reduces laser floor space further, realizes more effective superposition, improve the stability of beam laser.
Claims (10)
1. based on the modularization non-colinear serial group bundle laser of stimulated Brillouin scattering, it is characterized in that: it comprises beam laser main body, m layer non-colinear Brillouin amplification unit one and n layer non-colinear Brillouin amplification unit two, n=m or n=m-1, m are natural number, and m >=1;
Described beam laser main body comprises single longitudinal mode laser (1), optical isolator one (3), 1/2 wave plate one (4), polarizer one (5), optical isolator two (7), multiple pumping light amplification module one (8), seed light generation module (9), medium pool one (11), optical trap one (12), total reflective mirror one (13) and polarization spectro module one (14), the light beam of single longitudinal mode laser (1) outgoing is successively through optical isolator one (3), two bundles are divided into after 1/2 wave plate one (4) and polarizer one (5), a branch of reflection through polarization spectro module one (14) enters ground floor non-colinear Brillouin amplification unit one, another bundle is after optical isolator two (7), enter multiple pumping light amplification module one (8) successively, pumping light after each pumping light amplification module one (8) is amplified enters medium pool one (11), optical trap one (12) is incident to from the pumping light of medium pool one (11) outgoing, the seed light that seed light generation module (9) produces is incident to medium pool one (11), all crossing in medium pool one (11) with seed light from the pumping light of multiple pumping light amplification module one (8) outgoing, ground floor non-colinear Brillouin amplification unit one is entered by total reflective mirror one (13) reflection from the seed light of medium pool one (11) outgoing,
Non-colinear Brillouin amplification unit one comprises total reflective mirror three (15), medium pool two (16), optical trap two (17), total reflective mirror four (18), multiple pumping light amplification module two (19), polarization spectro module two (20) and polarizer four (21);
In ground floor non-colinear Brillouin amplification unit one: the seed light entered is incident to medium pool two (16) after total reflective mirror three (15) reflects, seed light after this medium pool two (16) amplifies is incident to total reflective mirror four (18) and is entered in ground floor non-colinear Brillouin amplification unit two by the reflection of this total reflective mirror four (18), the pumping light entering this layer of non-colinear Brillouin amplification unit one is incident to polarization spectro module two (20), and be polarized spectral module two (20) and be divided into reverberation and transmitted light, described transmitted light enters in ground floor non-colinear Brillouin amplification unit two, described reverberation enters multiple pumping light amplification module two (19) successively after polarizer four (21) reflects, pumping light after each pumping light amplification module two (19) is amplified enters medium pool two (16), all crossing in medium pool two (16) with seed light from the pumping light of multiple pumping light amplification module two (19) outgoing, optical trap two (17) is incident to from the pumping light of medium pool two (16) outgoing,
Described non-colinear Brillouin amplification unit two comprises total reflective mirror six (22), medium pool three (23), optical trap three (24), total reflective mirror seven (25), multiple pumping light amplification module three (26), polarization spectro module three (27) and polarizer six (28);
In ground floor non-colinear Brillouin amplification unit two: the seed light entered enters medium pool three (23) after total reflective mirror six (22) reflects, seed light after this medium pool three (23) amplifies is incident to total reflective mirror seven (25), and entered in next layer of non-colinear Brillouin amplification unit one after the reflection of this total reflective mirror seven (25), the pumping light entering this layer of non-colinear Brillouin amplification unit two is incident to polarization spectro module three (27), and be polarized spectral module three (27) and be divided into reverberation and transmitted light, described transmitted light enters in lower one deck non-colinear Brillouin amplification unit one, described reverberation enters multiple pumping light amplification module three (26) successively after polarizer six (28) reflects, pumping light after each pumping light amplification module three (26) is amplified enters medium pool three (23), all crossing in medium pool three (23) with seed light from the pumping light of multiple pumping light amplification module three (26) outgoing, optical trap three (24) is incident to from the pumping light of medium pool three (23) outgoing,
M layer non-colinear Brillouin amplification unit one and n layer non-colinear Brillouin amplification unit two are interspersed mutually to be arranged, that is: be incident to the total reflective mirror six (22) of lower one deck non-colinear Brillouin amplification unit two from the seed light of every layer of non-colinear Brillouin amplification unit one outgoing, be incident to the total reflective mirror three (15) of lower one deck non-colinear Brillouin amplification unit one from the seed light of this layer of non-colinear Brillouin amplification unit two outgoing; The pumping light of going out from polarization spectro module two (20) transmission of every layer of non-colinear Brillouin amplification unit one is incident to the polarization spectro module three (27) of lower one deck non-colinear Brillouin amplification unit two, and the pumping light of going out from this polarization spectro module three (27) transmission is incident to the polarization spectro module two (20) of lower one deck non-colinear Brillouin amplification unit one.
2. the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering according to claim 1, it is characterized in that: described seed light generation module (9) comprises 1/2 wave plate three (9-1), polarizer three (9-2), amplifier two (9-3), polarization apparatus two (9-4), condenser lens (9-5), seed light produces pond (9-6) and amplifier three (9-7), the pumping light entering seed light generation module (9) is incident to polarizer three (9-2) after 1/2 wave plate three (9-1) transmission, and be divided into reverberation and transmitted light by this polarizer three (9-2), described transmitted light enters pumping light amplification module one (8), described reverberation is successively through amplifier two (9-3), seed light generation pond (9-6) is entered after polarization apparatus two (9-4) and condenser lens (9-5), the seed light that seed light generation pond (9-6) produces is successively through condenser lens (9-5), polarization apparatus two (9-4), amplifier two (9-3), after polarizer three (9-2) and amplifier three (9-7), be incident to medium pool one (11).
3. the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering according to claim 2, it is characterized in that: described pumping light amplification module one (8) comprises 1/2 wave plate two (8-1), polarizer two (8-2), amplifier one (8-3), polarization apparatus one (8-4), full-reflector one (8-5) and total reflective mirror two (8-6), pumping light enters in described pumping light amplification module one (8) through 1/2 wave plate two (8-1), polarizer two (8-2) is incident to from the pumping light of 1/2 wave plate two (8-1) transmission, and be divided into reverberation and transmitted light by this polarizer two (8-2), wherein transmitted light enters next pumping light amplification module one (8), reverberation is successively through amplifier one (8-3) and polarization apparatus one (8-4), then be totally reflected device one (8-5) to reflect Hou Yanyuan road and return, the pumping light returned is incident to total reflective mirror two (8-6) after polarizer two (8-2) transmission, and entered medium pool one (11) by total reflective mirror two (8-6) reflection.
4. the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering according to claim 3, it is characterized in that: the quantity of pumping light amplification module one (8) is even number, and multiple pumping light amplification module one (8) is symmetrically distributed in the both sides of seed light generation module (9).
5. the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering according to claim 3, is characterized in that: described pumping light amplification module two (19) is identical with the structure of pumping light amplification module one (8).
6. the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering according to claim 5, it is characterized in that: the quantity of pumping light amplification module two (19) is even number, and multiple pumping light amplification module two (19) is symmetrically distributed in the both sides of medium pool two (16).
7. the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering according to claim 5, it is characterized in that: pumping light amplification module three (26) comprises 1/2 wave plate five (26-1), polarizer seven (26-2), amplifier five (26-3), polarization apparatus four (26-4), full-reflector three (26-5), total reflective mirror eight (26-6) and total reflective mirror nine (26-7), pumping light enters in described pumping light amplification module three (26) through 1/2 wave plate five (26-1), polarizer seven (26-2) is incident to from the pumping light of 1/2 wave plate five (26-1) transmission, and be divided into reverberation and transmitted light by this polarizer seven (26-2), wherein transmitted light enters next pumping light amplification module three (26), reverberation is successively through amplifier five (26-3) and polarization apparatus four (26-4), then be totally reflected device three (26-5) to reflect Hou Yanyuan road and return, the pumping light returned is after polarizer seven (26-2) transmission, medium pool three (23) is entered successively again through total reflective mirror eight (26-6) and total reflective mirror nine (26-7) reflection.
8. the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering according to claim 7, it is characterized in that: the quantity of described pumping light amplification module three (26) is even number, and multiple pumping light amplification module three (26) is symmetrically distributed in the both sides of the medium pool three (23) in this non-colinear Brillouin amplification unit two.
9. the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering according to claim 1, it is characterized in that: in medium pool one (11), medium pool two (16) and medium pool three (23), seed light and pumping light are linearly polarized light.
10. the modularization non-colinear serial group bundle laser based on stimulated Brillouin scattering according to claim 8, is characterized in that: medium pool one (11), medium pool two (16) are all parallel with the direction of propagation of the seed light in medium pool three (23).
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