CN102280804A - Polarization maintaining fiber amplifier without polarization maintaining fiber - Google Patents
Polarization maintaining fiber amplifier without polarization maintaining fiber Download PDFInfo
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- CN102280804A CN102280804A CN2011101904391A CN201110190439A CN102280804A CN 102280804 A CN102280804 A CN 102280804A CN 2011101904391 A CN2011101904391 A CN 2011101904391A CN 201110190439 A CN201110190439 A CN 201110190439A CN 102280804 A CN102280804 A CN 102280804A
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- iron plate
- plane iron
- polarization maintaining
- amplifier
- fiber
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Abstract
The invention discloses a polarization maintaining fiber amplifier without a polarization maintaining fiber, and relates to an amplifier. An active single-mode fiber (1) of the amplifier is laid on a second plane iron plate (22), and a first plane iron plate (21) is placed on the active single-mode fiber (1). A plurality of thread through-holes are uniformly distributed at periphery of the second plane iron plate (22). A plurality of through-holes are uniformly distributed at periphery of the first plane iron plate (21). Through screws the thread through-holes are threadedly coupled to the through-holes to connect the first plane iron plate (21) with the second plane iron plate (22). A pump source connects with the active single-mode fiber (1) through a coupler (4). Weight of the first plane iron plate and clockwise rotation of the screws generate pressure to the active single-mode fiber, and the active single-mode fiber generates stress birefringence. With regards to a traditional polarization maintaining fiber amplifier, an active polarization maintaining fiber has the disadvantages of large production difficulty, high cost, and welding difficulty with a common single-mode fiber. According to the polarization maintaining fiber amplifier without a polarization maintaining fiber in the invention, the above disadvantages are solved.
Description
Technical field
The present invention relates to a kind of amplifier, use fiber optic communication field especially.
Background technology
The generation of fiber amplifier and development have been made outstanding contribution to the raising of national life, at present the imagination originally that surpasses wide far away of its application.Nowadays owing to need there not be the optical relay of electricity in the long-distance optical communication field, fiber amplifier becomes first-selection, and its importance obtains people's attention day by day, so input, man power and material grow with each passing day in the research and development of fiber amplifier.
The inherent structure of fiber amplifier can make the output laser direction good, energy density height, enlargement ratio height.Particularly in the communications field, the laser signal of high light beam quality amplifies becomes the key link that improves optical communication speed and transmission range.Along with improving constantly of message capacity, the wavelength-division multiplex technique that injects a plurality of wave band of laser signals in simple optical fiber is quite ripe, can effectively improve the signal transmission quality of optical communication for the introducing of polarization maintaining optical fibre amplifier.All effectively improve at beam quality and conversion efficiency as the polarization maintaining optical fibre amplifier that gain medium makes with polarization maintaining optical fibre.
Traditional polarization maintaining optical fibre amplifier adopts active polarization maintaining optical fibre to control the polarization state of output signal, and the difficulty that is faced is: used active polarization maintaining optical fibre manufacture difficulty is big, cost is high, also has difficulties with the welding of general single mode fiber.
Summary of the invention
Technical problem to be solved by this invention is: the manufacture difficulty of the used active polarization maintaining optical fibre of traditional polarization maintaining optical fibre amplifier is big, cost is high, also has difficulties with the welding of general single mode fiber.
Technical scheme of the present invention:
Based on guarantor's polarisation amplifier of non-polarization maintaining optical fibre, this amplifier comprises active monomode fiber, coupler and pumping source.
Active monomode fiber be laid on the second plane iron plate above, the placement first plane iron plate on active monomode fiber.
Uniform tapped through hole on the second plane iron plate periphery, uniform through hole on the periphery of the first plane iron plate by being threaded of tapped through hole uniform on screw and the second plane iron plate periphery, links together the first plane iron plate and the second plane iron plate.
The weight of the first plane iron plate and the screw that turns clockwise are exerted pressure to active monomode fiber, make active monomode fiber produce stress birfringence.
The paving mode that described active monomode fiber is laid on above the second plane iron plate is helical form or snake shape; When mode is helical form, in the punching of the center of the second plane iron plate, an end of active monomode fiber is therefrom passed through, the other end is drawn from the crack between the first plane iron plate and the second plane iron plate.
When mode was the snake shape, all drew from the crack between the first plane iron plate and the second plane iron plate at the two ends of active monomode fiber;
Described first, second plane iron plate be shaped as circle, ellipse, rectangle or square.
The present invention compares the beneficial effect that is had with prior art:
With to the optical fiber side applied pressure as the source that produces stress birfringence, make common active monomode fiber produce stress birfringence, can control the polarization state of its output signal with the inclined to one side amplifier of this guarantor who makes, the amplifier manufacture difficulty of comparing traditional polarization maintaining optical fibre reduces, cost reduces, owing to itself be exactly common non-polarization maintaining optical fibre, therefore, also be more prone to the welding of general single mode fiber., directly contact with optical fiber as the clamping plate that produce stress with two plane iron plates, heat dispersion improves.
Description of drawings
Fig. 1 is the guarantor's polarisation amplifier front view based on non-polarization maintaining optical fibre.
Fig. 2 is the sectional view of Fig. 1 along the A-A face.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Based on guarantor's polarisation amplifier of non-polarization maintaining optical fibre, this amplifier comprises active monomode fiber 1, coupler 4 and pumping source 3.
Active monomode fiber 1 be laid on the second plane iron plate 22 above, the placement first plane iron plate 21 on active monomode fiber 1.The first plane iron plate 21 and the second plane iron plate 22 be shaped as square, in the punching of the center of the second plane iron plate 22.
The second plane iron plate, 22 peripheries are gone up uniform four tapped through holes, uniform four and four corresponding through holes of tapped through hole on the periphery of the first plane iron plate 21, go up being threaded of four uniform tapped through holes by four screws with the second plane iron plate, 22 peripheries, the first plane iron plate 21 and the second plane iron plate 22 are linked together.
The paving mode that active monomode fiber 1 is laid on above the second plane iron plate 22 is a helical form; In the punching of the center of the second plane iron plate 22, an end of active monomode fiber 1 is therefrom passed through, the other end is drawn from the crack between the first plane iron plate 21 and the second plane iron plate 22.
The weight of the first plane iron plate 21 and the screw that turns clockwise are exerted pressure to active monomode fiber 1, make active monomode fiber 1 produce stress birfringence.
Active monomode fiber 1 paving mode or be the snake shape, all draw from the crack between the first plane iron plate 21 and the second plane iron plate 22 at the two ends of active monomode fiber 1.
The shape of described first, second plane iron plate 21,22 or be in circular, oval, the rectangle any.
Claims (3)
1. based on guarantor's polarisation amplifier of non-polarization maintaining optical fibre, this amplifier comprises active monomode fiber (1), coupler (4) and pumping source (3), it is characterized in that:
Active monomode fiber (1) be laid on the second plane iron plate (22) above, the placement first plane iron plate (21) on active monomode fiber (1);
Uniform tapped through hole on second plane iron plate (22) periphery, uniform through hole on the periphery of the first plane iron plate (21), by being threaded of tapped through hole uniform on screw and second plane iron plate (22) periphery, the first plane iron plate (21) and the second plane iron plate (22) are linked together;
The weight of the first plane iron plate (21) and the screw that turns clockwise are exerted pressure to active monomode fiber (1), make active monomode fiber (1) produce stress birfringence.
2. the guarantor's polarisation amplifier based on non-polarization maintaining optical fibre according to claim 1 is characterized in that:
The paving mode that described active monomode fiber (1) is laid on above the second plane iron plate (22) is helical form or snake shape; When mode is helical form, in the punching of the center of the second plane iron plate (22), an end of active monomode fiber (1) is therefrom passed through, the other end is drawn from the crack between the first plane iron plate (21) and the second plane iron plate (22);
When mode was the snake shape, all drew from the crack between the first plane iron plate (21) and the second plane iron plate (22) at the two ends of active monomode fiber (1).
3. the guarantor's polarisation amplifier based on non-polarization maintaining optical fibre according to claim 1 is characterized in that:
Described first, second plane iron plate (21,22) be shaped as circle, ellipse, rectangle or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101904391A CN102280804A (en) | 2011-07-08 | 2011-07-08 | Polarization maintaining fiber amplifier without polarization maintaining fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101904391A CN102280804A (en) | 2011-07-08 | 2011-07-08 | Polarization maintaining fiber amplifier without polarization maintaining fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102280804A true CN102280804A (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101904391A Pending CN102280804A (en) | 2011-07-08 | 2011-07-08 | Polarization maintaining fiber amplifier without polarization maintaining fiber |
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| Country | Link |
|---|---|
| CN (1) | CN102280804A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576487A (en) * | 2016-03-18 | 2016-05-11 | 深圳瑞焱通光子技术有限公司 | Laser amplifier |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4740078A (en) * | 1984-01-24 | 1988-04-26 | Mettler Instrumente Ag | Force measuring apparatus and method using stress-induced birefringence in a single-mode optical fiber |
| CN1131279A (en) * | 1994-10-13 | 1996-09-18 | 住友电气工业株式会社 | Apparatus and method of splicing polarization-maintaining optical fibers |
| US6724528B2 (en) * | 2001-02-27 | 2004-04-20 | The United States Of America As Represented By The Secretary Of The Navy | Polarization-maintaining optical fiber amplifier employing externally applied stress-induced birefringence |
-
2011
- 2011-07-08 CN CN2011101904391A patent/CN102280804A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4740078A (en) * | 1984-01-24 | 1988-04-26 | Mettler Instrumente Ag | Force measuring apparatus and method using stress-induced birefringence in a single-mode optical fiber |
| CN1131279A (en) * | 1994-10-13 | 1996-09-18 | 住友电气工业株式会社 | Apparatus and method of splicing polarization-maintaining optical fibers |
| US6724528B2 (en) * | 2001-02-27 | 2004-04-20 | The United States Of America As Represented By The Secretary Of The Navy | Polarization-maintaining optical fiber amplifier employing externally applied stress-induced birefringence |
Non-Patent Citations (1)
| Title |
|---|
| 金艳丽 等: "应力对单模光纤偏振特性的影响", 《激光与红外》, vol. 36, no. 6, 30 June 2006 (2006-06-30) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576487A (en) * | 2016-03-18 | 2016-05-11 | 深圳瑞焱通光子技术有限公司 | Laser amplifier |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20111214 |