WO2002023683A3 - Pulse laser resonator - Google Patents

Pulse laser resonator Download PDF

Info

Publication number
WO2002023683A3
WO2002023683A3 PCT/GB2001/004118 GB0104118W WO0223683A3 WO 2002023683 A3 WO2002023683 A3 WO 2002023683A3 GB 0104118 W GB0104118 W GB 0104118W WO 0223683 A3 WO0223683 A3 WO 0223683A3
Authority
WO
WIPO (PCT)
Prior art keywords
differing
laser
polarisations
pulse laser
laser resonator
Prior art date
Application number
PCT/GB2001/004118
Other languages
French (fr)
Other versions
WO2002023683A2 (en
Inventor
Jason Palmer
David R Klug
Ian P Mercer
Daniel A Allwood
Original Assignee
Powerlase Ltd
Jason Palmer
David R Klug
Ian P Mercer
Daniel A Allwood
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB0022481A external-priority patent/GB0022481D0/en
Priority claimed from GB0022480A external-priority patent/GB0022480D0/en
Priority claimed from GB0022478A external-priority patent/GB0022478D0/en
Priority claimed from GB0022482A external-priority patent/GB0022482D0/en
Priority claimed from GB0022476A external-priority patent/GB0022476D0/en
Application filed by Powerlase Ltd, Jason Palmer, David R Klug, Ian P Mercer, Daniel A Allwood filed Critical Powerlase Ltd
Priority to US10/380,655 priority Critical patent/US7031352B2/en
Priority to EP01965470A priority patent/EP1320912A2/en
Priority to AU2001286111A priority patent/AU2001286111A1/en
Publication of WO2002023683A2 publication Critical patent/WO2002023683A2/en
Publication of WO2002023683A3 publication Critical patent/WO2002023683A3/en
Priority to US11/347,685 priority patent/US7082145B2/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
    • H01S3/082—Construction or shape of optical resonators or components thereof comprising three or more reflectors defining a plurality of resonators, e.g. for mode selection or suppression
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08054—Passive cavity elements acting on the polarization, e.g. a polarizer for branching or walk-off compensation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08059—Constructional details of the reflector, e.g. shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
    • H01S3/0813—Configuration of resonator
    • H01S3/0815—Configuration of resonator having 3 reflectors, e.g. V-shaped resonators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
    • H01S3/083—Ring lasers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
    • H01S3/107—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using electro-optic devices, e.g. exhibiting Pockels or Kerr effect
    • H01S3/1075—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using electro-optic devices, e.g. exhibiting Pockels or Kerr effect for optical deflection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1103—Cavity dumping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1123—Q-switching
    • H01S3/115—Q-switching using intracavity electro-optic devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/1306—Stabilisation of the amplitude

Abstract

A laser (2) includes a gain medium (10), a switch element (12) and a pulse controller (14). In one embodiment laser light of differing polarisations pass along respective paths and a pulsed laser output is generated via an electro-optical element. In another embodiment light of differing polarisations passes in differing directions through a cylical path. The invention can make use of a prism-shaped polariser having a polarisation selection face and two further faces. Yet further initial pulses can be controlled to reduce energy for example by progressively increasing the period or amplitude of successive pulses. As a result an efficient and high power laser apparatus is realised.
PCT/GB2001/004118 2000-09-13 2001-09-13 Pulse laser resonator WO2002023683A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/380,655 US7031352B2 (en) 2000-09-13 2001-09-13 Pulse laser resonator
EP01965470A EP1320912A2 (en) 2000-09-13 2001-09-13 Pulse laser resonator
AU2001286111A AU2001286111A1 (en) 2000-09-13 2001-09-13 Improvements to lasers
US11/347,685 US7082145B2 (en) 2000-09-13 2006-02-03 Pulse laser resonator

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
GB0022481A GB0022481D0 (en) 2000-09-13 2000-09-13 Laser cavities
GB0022480A GB0022480D0 (en) 2000-09-13 2000-09-13 Laser cavities
GB0022478A GB0022478D0 (en) 2000-09-13 2000-09-13 Switched pulsed laser
GB0022476.6 2000-09-13
GB0022480.8 2000-09-13
GB0022482.4 2000-09-13
GB0022482A GB0022482D0 (en) 2000-09-13 2000-09-13 Polariser
GB0022481.6 2000-09-13
GB0022478.2 2000-09-13
GB0022476A GB0022476D0 (en) 2000-09-13 2000-09-13 Switched pulsed laser

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US10380655 A-371-Of-International 2001-09-13
US11/347,685 Continuation US7082145B2 (en) 2000-09-13 2006-02-03 Pulse laser resonator

Publications (2)

Publication Number Publication Date
WO2002023683A2 WO2002023683A2 (en) 2002-03-21
WO2002023683A3 true WO2002023683A3 (en) 2002-06-20

Family

ID=27515978

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/004118 WO2002023683A2 (en) 2000-09-13 2001-09-13 Pulse laser resonator

Country Status (4)

Country Link
US (2) US7031352B2 (en)
EP (1) EP1320912A2 (en)
AU (1) AU2001286111A1 (en)
WO (1) WO2002023683A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002023683A2 (en) 2000-09-13 2002-03-21 Powerlase Limited Pulse laser resonator
US20080273559A1 (en) * 2007-05-04 2008-11-06 Ekspla Ltd. Multiple Output Repetitively Pulsed Laser
EP3666209A3 (en) * 2010-11-04 2020-09-02 Biolase, Inc. Initiation sequences for ramping-up pulse power in a medical laser having high-intensity leading subpulses
DE102012113029A1 (en) * 2012-12-21 2014-06-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Short-pulse laser system
US8995052B1 (en) 2013-09-09 2015-03-31 Coherent Kaiserslautern GmbH Multi-stage MOPA with first-pulse suppression
WO2021010089A1 (en) * 2019-07-16 2021-01-21 日亜化学工業株式会社 Q switch resonator, and pulse generator
CN111082301B (en) * 2019-12-31 2022-01-14 哈尔滨工程大学 LN cavity emptying type orthogonal polarization synchronous pulse laser generation method based on double 45-MgO

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3564454A (en) * 1967-11-28 1971-02-16 Trw Inc Laser apparatus with laser rod birefringence insensitive polarized cavity
US3928818A (en) * 1974-10-17 1975-12-23 Us Navy Method of reducing light leakage in lasers
US4380073A (en) * 1980-11-10 1983-04-12 United Technologies Corporation Injection control of an electro-optically Q-switched cavity-dumped laser
US4841528A (en) * 1988-09-06 1989-06-20 California Institute Of Technology Frequency doubled, cavity dumped feedback laser
EP0370620A2 (en) * 1988-11-21 1990-05-30 Spectra-Physics Lasers, Inc. Laser resonator with laser medium exhibiting thermally induced birefringence

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053851A (en) * 1975-07-10 1977-10-11 The United States Of America As Represented By The United States Energy Research And Development Administration Near 16 micron CO2 laser system
US4208636A (en) * 1977-12-16 1980-06-17 Burleigh Instruments, Inc. Laser apparatus
AU5376979A (en) 1978-12-15 1980-06-26 Commonwealth Of Australia, The Thermally compensated laser
US4337442A (en) * 1980-03-28 1982-06-29 Electro Scientific Industries, Inc. First laser pulse amplitude modulation
US4546477A (en) * 1982-04-23 1985-10-08 The Commonwealth Of Australia Pulse transmission or reflection mode laser
JPS6095988A (en) 1983-10-31 1985-05-29 Nec Corp Driving system of q-switch laser device
IT1226810B (en) 1985-03-18 1991-02-19 Selenia Ind Elettroniche HIGH-SPEED AND CADENCE ELECTRO-OPTIC DIVERTER WITH HIGH SPEED LASER RADIATION, HAVING ANY DISTRIBUTION OF POLARIZATION
IT1181610B (en) * 1985-03-18 1987-09-30 Selenia Ind Elettroniche OPTICAL RESONATOR FOR POWER LASER, USING A PASSIVE "Q-SWITCH" OR ANY OTHER OPTICAL ELEMENT WITH LOW DAMAGE THRESHOLD
US4675872A (en) * 1985-09-30 1987-06-23 Harris Corporation Driver unit for a laser Q-switch
US4740986A (en) 1985-12-20 1988-04-26 Hughes Aircraft Company Laser resonator
WO1987007449A1 (en) 1986-05-22 1987-12-03 Advanced Lasers Ltd. Frequency shifted laser transmitter
ES2075435T3 (en) * 1990-01-11 1995-10-01 Battelle Memorial Institute IMPROVING THE PROPERTIES OF MATERIALS.
US5181222A (en) * 1992-02-04 1993-01-19 Eastman Kodak Company Laser oscillator
JP3168770B2 (en) * 1993-06-03 2001-05-21 松下電器産業株式会社 Polarizing device and projection display device using the polarizing device
US5408480A (en) * 1993-07-15 1995-04-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Laser with optically driven Q-switch
JPH07294739A (en) * 1994-04-28 1995-11-10 Olympus Optical Co Ltd Polarized light separating element
DE69532691T2 (en) 1994-12-28 2005-02-10 Seiko Epson Corp. Polarization illumination device and projector using the same
US5808795A (en) * 1995-03-06 1998-09-15 Nikon Corporation Projection type display apparatus
US6676402B1 (en) * 1997-04-21 2004-01-13 The Regents Of The University Of California Laser ignition
JPH11104145A (en) * 1997-09-30 1999-04-20 Nidek Co Ltd Laser therapeutic device
DE19747180A1 (en) * 1997-10-24 1999-07-22 Coherent Luebeck Gmbh Pulse laser with first pulse control
WO2002023683A2 (en) 2000-09-13 2002-03-21 Powerlase Limited Pulse laser resonator
US20020105995A1 (en) * 2000-11-16 2002-08-08 Lambda Physik Ag Molecular fluorine laser with single spectral line and polarized output
US6587487B2 (en) * 2000-12-19 2003-07-01 Photonics Industries International, Inc. Harmonic laser
US6859467B2 (en) * 2001-05-03 2005-02-22 The Regents Of The University Of California Electro-optic modulator material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3564454A (en) * 1967-11-28 1971-02-16 Trw Inc Laser apparatus with laser rod birefringence insensitive polarized cavity
US3928818A (en) * 1974-10-17 1975-12-23 Us Navy Method of reducing light leakage in lasers
US4380073A (en) * 1980-11-10 1983-04-12 United Technologies Corporation Injection control of an electro-optically Q-switched cavity-dumped laser
US4841528A (en) * 1988-09-06 1989-06-20 California Institute Of Technology Frequency doubled, cavity dumped feedback laser
EP0370620A2 (en) * 1988-11-21 1990-05-30 Spectra-Physics Lasers, Inc. Laser resonator with laser medium exhibiting thermally induced birefringence

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GOODNO G D ET AL: "Investigation of beta -BaB/sub 2/O/sub 4/ as a Q switch for high power applications", APPLIED PHYSICS LETTERS, 27 MARCH 1995, USA, vol. 66, no. 13, pages 1575 - 1577, XP002184817, ISSN: 0003-6951 *

Also Published As

Publication number Publication date
EP1320912A2 (en) 2003-06-25
US20040100998A1 (en) 2004-05-27
US7031352B2 (en) 2006-04-18
AU2001286111A1 (en) 2002-03-26
US20060140243A1 (en) 2006-06-29
US7082145B2 (en) 2006-07-25
WO2002023683A2 (en) 2002-03-21

Similar Documents

Publication Publication Date Title
WO1996042129A1 (en) Long-pulse-width narrow-bandwidth laser
WO2002082600A3 (en) Q-switched cavity dumped co2 laser for material processing
EP1324101A4 (en) Optical signal transmitter and optical signal transmitting method
WO2003019739A3 (en) Suppression of mode-beating noise in a q-switched pulsed laser using novel q-switch device
WO2002023683A3 (en) Pulse laser resonator
WO2002011252A3 (en) Laser for use in non-linear optics
WO2003030315A1 (en) Laser control method, laser apparatus, laser treatment method used for the same, laser treatment apparatus
CA2021254C (en) Power laser pulse generator
WO2005027284A3 (en) Pulsed co2 laser including an optical damage resistant electro-optical switching arrangement
KR930010132B1 (en) Phase conjugate laser with a temporal square pulse and its forming method
CA2201622A1 (en) Optical q-switching to generate ultra short pulses in diode lasers
US8446925B2 (en) Reduction of timing jitter in a passive Q-switched solid state laser
GB9507555D0 (en) High power, high pulse repetition frequency, compact, pulsed laser diode driver
CA2151441A1 (en) Active-Mode-Locking Optical Fibre Pulsed Laser Generator Having a Variable Instantaneous Frequency
GB9501254D0 (en) High power, high pulse repetition frequency, compact, pulsed laser diode driver
GB9501246D0 (en) High power, high pulse repetition frequency, compact, pulsed laser diode driver
DE50113707D1 (en) DEVICE FOR PRODUCING LASER LIGHT
EP1172809A4 (en) Optical disk device
WO2002063399A1 (en) Hologram forming apparatus and method
EP1170084A3 (en) Laser device for material machining
Wu et al. Comparative results of diode pumped Er: glass lasers Q-switched with BBO Pockel’s cell and FTIR methods
WO1998022997A3 (en) Solid state laser system for ultra-violet micro-lithography
DE60136294D1 (en) DEVICE FOR GENERATING LASER IMPULSES OF ADJUSTABLE DURATION
WO2002039482A3 (en) Wavelength tuning optimization of semiconductor lasers
DIANOV et al. Nonlinear effects in single-mode optical waveguides under nanosecond and picosecond laser pumping(Nelineinyue effekty v odnomodovykh svetovodakh pri nano- i pikosekundnykh lazernykh nakachkakh)

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2001965470

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2001965470

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWE Wipo information: entry into national phase

Ref document number: 10380655

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: JP