JP6132733B2 - レーザ装置 - Google Patents
レーザ装置 Download PDFInfo
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- JP6132733B2 JP6132733B2 JP2013203675A JP2013203675A JP6132733B2 JP 6132733 B2 JP6132733 B2 JP 6132733B2 JP 2013203675 A JP2013203675 A JP 2013203675A JP 2013203675 A JP2013203675 A JP 2013203675A JP 6132733 B2 JP6132733 B2 JP 6132733B2
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- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094049—Guiding of the pump light
- H01S3/094053—Fibre coupled pump, e.g. delivering pump light using a fibre or a fibre bundle
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/421—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
-
- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
-
- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
- H01S3/09415—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode the pumping beam being parallel to the lasing mode of the pumped medium, e.g. end-pumping
-
- 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
- H01S3/102—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
- H01S3/1022—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping
-
- 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
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/163—Solid materials characterised by a crystal matrix
- H01S3/164—Solid materials characterised by a crystal matrix garnet
- H01S3/1643—YAG
-
- 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
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/163—Solid materials characterised by a crystal matrix
- H01S3/1671—Solid materials characterised by a crystal matrix vanadate, niobate, tantalate
- H01S3/1673—YVO4 [YVO]
-
- 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
- H01S2301/00—Functional characteristics
- H01S2301/20—Lasers with a special output beam profile or cross-section, e.g. non-Gaussian
- H01S2301/206—Top hat profile
-
- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094065—Single-mode pumping
-
- 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
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/1601—Solid materials characterised by an active (lasing) ion
- H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
- H01S3/1611—Solid materials characterised by an active (lasing) ion rare earth neodymium
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lasers (AREA)
- Optical Couplings Of Light Guides (AREA)
- Semiconductor Lasers (AREA)
Description
2ΦGI(NASI/NAGI)≧ΦSI≧ΦGI(NASI/NAGI)・・・(1)
2ΦGI≧ΦSI≧ΦGI・・・(2)
[第1実施形態]
2ΦGI(NASI/NAGI)≧ΦSI≧ΦGI(NASI/NAGI)・・・(1)
2ΦGI≧ΦSI≧ΦGI・・・(2)
表1によれば、ファイバの形状変化が曲率半径137mm以上の範囲では、SIファイバ32を用いた場合は、GIファイバ31を用いた場合より、高いパルスエネルギーのレーザ光L2が得られている。しかし、ファイバの形状変化が曲率半径123mm以下の範囲では、GIファイバ31を用いた場合は、安定したパルスエネルギーのレーザ光L2が得られているのに対し、SIファイバ32を用いた場合は、発振が停止している。また、ディレイについては、GIファイバ31を用いた場合は、SIファイバ32を用いた場合よりも、変化が少なく安定である。すなわち、外的応力に対する出力変化特性に関しては、GIファイバ31の方がSIファイバ32よりも優れていることが明らかになった。また、表2によれば、GIファイバ31のパルスエネルギーは、半導体レーザ21の温度調整、光共振器5の温度調整を最適化した状態で、SIファイバ32の60%程度であった。
2ΦGI(NASI/NAGI)≧ΦSI≧ΦGI(NASI/NAGI)・・・(1)
2ΦGI≧ΦSI≧ΦGI・・・(2)
[第2実施形態]
Claims (8)
- 光を出射する光源と、
前記光源から出射された前記光が入射させられ、当該光を導波して出射する光ファイバと、
前記光ファイバから出射された前記光が入射させられるレーザ媒質を有し、レーザ光を出射するレーザ発振器と、を備え、
前記光ファイバは、
光入射側の部分をなすGIファイバと、
前記GIファイバに接合され、光出射側の部分をなすSIファイバと、を有する、レーザ装置。 - 前記GIファイバの長さは、前記SIファイバの長さよりも長い、請求項1記載のレーザ装置。
- 前記SIファイバは、湾曲された状態で固定されている、請求項1又は2記載のレーザ装置。
- 前記GIファイバのコア径をΦGIとし、前記GIファイバの開口数をNAGIとし、前記SIファイバのコア径をΦSIとし、前記SIファイバの開口数をNASIとすると、NAGI>NASIの場合には下記の式(1)を満たし、NAGI<NASIの場合には下記の式(2)を満たす、請求項1〜3のいずれか一項記載のレーザ装置。
2ΦGI(NASI/NAGI)≧ΦSI≧ΦGI(NASI/NAGI)・・・(1)
2ΦGI≧ΦSI≧ΦGI・・・(2) - 前記光源は、半導体レーザである、請求項1〜4のいずれか一項記載のレーザ装置。
- 前記レーザ発振器は、前記光ファイバから出射された前記光が励起光として前記レーザ媒質に入射させられる光共振器である、請求項1〜5のいずれか一項記載のレーザ装置。
- 前記レーザ発振器は、前記光ファイバから出射された前記光が励起光として前記レーザ媒質に入射させられる光増幅器である、請求項1〜5のいずれか一項記載のレーザ装置。
- 前記レーザ発振器は、前記光ファイバから出射された前記光が種光として前記レーザ媒質に入射させられる光増幅器である、請求項1〜5のいずれか一項記載のレーザ装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013203675A JP6132733B2 (ja) | 2013-09-30 | 2013-09-30 | レーザ装置 |
PCT/JP2014/075120 WO2015046160A1 (ja) | 2013-09-30 | 2014-09-22 | レーザ装置 |
US15/024,417 US20160218480A1 (en) | 2013-09-30 | 2014-09-22 | Laser apparatus |
CN201480053088.1A CN105580221A (zh) | 2013-09-30 | 2014-09-22 | 激光装置 |
DE112014004501.2T DE112014004501T5 (de) | 2013-09-30 | 2014-09-22 | Laservorrichtung |
KR1020167010616A KR20160065129A (ko) | 2013-09-30 | 2014-09-22 | 레이저 장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013203675A JP6132733B2 (ja) | 2013-09-30 | 2013-09-30 | レーザ装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2015070131A JP2015070131A (ja) | 2015-04-13 |
JP2015070131A5 JP2015070131A5 (ja) | 2016-06-30 |
JP6132733B2 true JP6132733B2 (ja) | 2017-05-24 |
Family
ID=52743296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013203675A Active JP6132733B2 (ja) | 2013-09-30 | 2013-09-30 | レーザ装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20160218480A1 (ja) |
JP (1) | JP6132733B2 (ja) |
KR (1) | KR20160065129A (ja) |
CN (1) | CN105580221A (ja) |
DE (1) | DE112014004501T5 (ja) |
WO (1) | WO2015046160A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7015989B2 (ja) * | 2017-11-20 | 2022-02-04 | パナソニックIpマネジメント株式会社 | 光伝送装置 |
US10998689B2 (en) * | 2018-01-19 | 2021-05-04 | Shailendhar Saraf | Systems, apparatus, and methods for producing ultra stable, single-frequency, single-transverse-mode coherent light in solid-state lasers |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4361760A (en) * | 1980-10-29 | 1982-11-30 | The United States Of America As Represented By The Secretary Of The Army | Two-degree-of-freedom gyro with radiant energy pickoffs |
US4854706A (en) * | 1987-07-27 | 1989-08-08 | Virginia Tech Intellectual Properties, Inc. | Modal domain optical fiber sensors |
JPH0797676B2 (ja) * | 1990-05-22 | 1995-10-18 | 新日本製鐵株式会社 | 固体レーザー装置 |
JPH0475794A (ja) * | 1990-07-16 | 1992-03-10 | Hitachi Constr Mach Co Ltd | レーザ加工装置の出力ビームモード安定化光ファイバ |
JP3167844B2 (ja) | 1993-10-08 | 2001-05-21 | テルモ株式会社 | 固体レーザ装置 |
JP2003112281A (ja) * | 2001-09-28 | 2003-04-15 | Matsushita Electric Ind Co Ltd | レーザ加工装置とこれを用いた生産設備 |
US6810175B1 (en) * | 2002-04-22 | 2004-10-26 | Terabeam Corporation | Off-axis mode scrambler |
JP2004134660A (ja) * | 2002-10-11 | 2004-04-30 | Furukawa Electric Co Ltd:The | 光増幅伝送システム |
JP2007163940A (ja) * | 2005-12-15 | 2007-06-28 | Mitsubishi Electric Corp | 光結合装置 |
CN101277153A (zh) * | 2007-03-27 | 2008-10-01 | 菲尼萨公司 | 包括模式混合的光耦合器 |
US20080240653A1 (en) * | 2007-03-27 | 2008-10-02 | Jonathan Paul King | Optical coupler including mode-mixing |
JP2010036189A (ja) * | 2008-07-31 | 2010-02-18 | Miyachi Technos Corp | レーザ加工装置 |
CN201270374Y (zh) * | 2008-08-08 | 2009-07-08 | 镭射沃激光科技(深圳)有限公司 | 一种半导体光纤耦合泵浦的红外固体激光器 |
JP2011127529A (ja) | 2009-12-18 | 2011-06-30 | National Institutes Of Natural Sciences | 半導体レーザー励起によるエンジン点火用固体レーザー装置 |
CN102859814A (zh) * | 2010-03-19 | 2013-01-02 | 株式会社藤仓 | 光纤放大器及使用其的光纤激光器装置 |
-
2013
- 2013-09-30 JP JP2013203675A patent/JP6132733B2/ja active Active
-
2014
- 2014-09-22 WO PCT/JP2014/075120 patent/WO2015046160A1/ja active Application Filing
- 2014-09-22 DE DE112014004501.2T patent/DE112014004501T5/de not_active Withdrawn
- 2014-09-22 KR KR1020167010616A patent/KR20160065129A/ko not_active Application Discontinuation
- 2014-09-22 US US15/024,417 patent/US20160218480A1/en not_active Abandoned
- 2014-09-22 CN CN201480053088.1A patent/CN105580221A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2015070131A (ja) | 2015-04-13 |
DE112014004501T5 (de) | 2016-07-21 |
US20160218480A1 (en) | 2016-07-28 |
KR20160065129A (ko) | 2016-06-08 |
WO2015046160A1 (ja) | 2015-04-02 |
CN105580221A (zh) | 2016-05-11 |
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