JP5822850B2 - レーザ装置 - Google Patents
レーザ装置 Download PDFInfo
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- JP5822850B2 JP5822850B2 JP2012553383A JP2012553383A JP5822850B2 JP 5822850 B2 JP5822850 B2 JP 5822850B2 JP 2012553383 A JP2012553383 A JP 2012553383A JP 2012553383 A JP2012553383 A JP 2012553383A JP 5822850 B2 JP5822850 B2 JP 5822850B2
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- laser
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- cladding
- laser diode
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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
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4006—Injection locking
-
- 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
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre 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
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06729—Peculiar transverse fibre 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
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06729—Peculiar transverse fibre profile
- H01S3/06737—Fibre having multiple non-coaxial cores, e.g. multiple active cores or separate cores for pump and gain
-
- 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
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06729—Peculiar transverse fibre profile
- H01S3/06741—Photonic crystal fibre, i.e. the fibre having a photonic bandgap
-
- 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
- H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
- H01S3/094007—Cladding pumping, i.e. pump light propagating in a clad surrounding the active core
-
- 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
- H01S3/09408—Pump redundancy
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Lasers (AREA)
- Semiconductor Lasers (AREA)
Description
Claims (15)
- 基準光源と、基準ファイバと、少なくとも1つのレーザダイオードとを有するレーザ装置であって、
前記基準ファイバは、屈折率n1を有するコア及び屈折率n2を有する第1クラッドを備え、屈折率n1は屈折率n2よりも大きく、
前記基準光源は、所定の波長を有する基準光を放射し、前記基準光は、前記基準ファイバの前記コアの中を通って前記レーザダイオードへ導かれ、
前記レーザダイオードは、前記所定の波長における注入同期閾値を有しており、
前記基準光源は、前記基準ファイバの前記コアの中を通って前記レーザダイオードへ導かれる前記基準光が、前記注入同期閾値よりも大きい出力を有するように選択されており、
前記第1クラッドは、屈折率n3を有する第2クラッドにより囲まれており、屈折率n2は屈折率n3よりも大きく、
前記レーザダイオードはレーザ光を放射し、前記レーザ光は、前記基準ファイバの前記第1クラッドの中を通って導かれることを特徴とするレーザ装置。 - 前記基準光源は、前記所定の波長におけるその出力と、前記基準光源から前記レーザダイオードまでの伝搬において前記基準光によって経験される第1損失との積が、前記レーザダイオードによって放射される前記レーザ光の出力の少なくとも0.5%である請求項1に記載のレーザ装置。
- 前記レーザダイオードから前記基準光源までの伝搬において前記レーザ光によって経験される第2損失は、前記第2損失と、前記レーザダイオードによって放射される前記レーザ光の出力との積が、前記基準光源によって放射される前記基準光の出力の10%よりも小さい請求項1又は2に記載のレーザ装置。
- 前記基準光を前記コアから前記基準ファイバの前記第1クラッドへ結合するように配置されるカプラを有する請求項1〜3の何れか一項に記載のレーザ装置。
- 前記カプラは、ブレーズド・ファイバ・ブラッグ回折格子である請求項4に記載のレーザ装置。
- 前記基準光と信号とを合成するように配置される波長分割多重化器を有する請求項1〜5の何れか一項に記載のレーザ装置。
- 前記レーザダイオードからの前記レーザ光を受け取るように配置される増幅手段を有する請求項1〜6の何れか一項に記載のレーザ装置。
- 前記増幅手段は、ファイバ増幅器である請求項7に記載のレーザ装置。
- 前記基準ファイバ及び前記ファイバ増幅器は、前記基準ファイバの前記第1クラッドによって導かれた前記レーザ光が前記ファイバ増幅器の中に結合し且つ前記ファイバ増幅器を励起できるように、それらの長さの一部に沿って光学的に接触している請求項8に記載のレーザ装置。
- 前記ファイバ増幅器は、第2コアと、ペデスタルと、第3クラッドを有し、前記ペデスタルは前記コアを囲み、前記ペデスタルは、前記第2コアの屈折率よりも低く且つ前記第3クラッドの屈折率よりも高い屈折率を有する請求項8又は9に記載のレーザ装置。
- 前記ファイバ増幅器は、少なくとも1つの希土類ドーパントを有する請求項8〜10の何れか一項に記載のレーザ装置。
- 前記レーザダイオードは、前記ファイバ増幅器を逆方向励起するように配置される請求項8〜11の何れか一項に記載のレーザ装置。
- 前記基準ファイバは、単一モードファイバである請求項1〜12の何れか一項に記載のレーザ装置。
- 前記レーザダイオードは、マルチモードのレーザダイオードである請求項1〜13の何れか一項に記載のレーザ装置。
- 複数の前記レーザダイオードを有しており、複数の前記レーザダイオードは、結合器によって結合されている請求項1〜14の何れか一項に記載のレーザ装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1002740.7 | 2010-02-17 | ||
GBGB1002740.7A GB201002740D0 (en) | 2010-02-17 | 2010-02-17 | Laser apparatus |
PCT/GB2011/000180 WO2011101614A1 (en) | 2010-02-17 | 2011-02-10 | Laser apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013520026A JP2013520026A (ja) | 2013-05-30 |
JP5822850B2 true JP5822850B2 (ja) | 2015-11-25 |
Family
ID=42113993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012553383A Active JP5822850B2 (ja) | 2010-02-17 | 2011-02-10 | レーザ装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8605762B2 (ja) |
EP (1) | EP2537214B1 (ja) |
JP (1) | JP5822850B2 (ja) |
CN (1) | CN102763291B (ja) |
GB (1) | GB201002740D0 (ja) |
WO (1) | WO2011101614A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5984813B2 (ja) * | 2010-09-02 | 2016-09-06 | オーエフエス ファイテル,エルエルシー | 低雑音を示すレーザ・キャビティ |
DE102012207339B4 (de) | 2012-03-30 | 2018-08-30 | Trumpf Laser Gmbh | Pumpstrahlungsanordnung und Verfahren zum Pumpen eines laseraktiven Mediums |
US9653298B2 (en) * | 2013-01-14 | 2017-05-16 | Ipg Photonics Corporation | Thermal processing by transmission of mid infra-red laser light through semiconductor substrate |
CN105026971B (zh) * | 2013-02-28 | 2019-02-19 | Ipg光子公司 | 低模式大功率光纤合束器 |
US9140856B2 (en) * | 2013-02-28 | 2015-09-22 | Ipg Photonics Corporation | Ultra-high power multimode combiner |
IL232561A (en) * | 2014-05-12 | 2015-11-30 | V Gen Ltd | Wavelength stabilization and spectral width narrowing for a unicycle and multi-cycle diode laser |
US9634462B2 (en) * | 2014-10-15 | 2017-04-25 | Nlight, Inc. | Slanted FBG for SRS suppression |
IL247506B (en) * | 2016-08-25 | 2020-01-30 | Elbit Systems Electro Optics Elop Ltd | Mode instability control in fiber lasers |
DE102018204814A1 (de) * | 2018-03-29 | 2019-10-02 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Vorrichtung und Verfahren zum Erzeugen von Laserstrahlungen mit unterschiedlicher Leistung und Brillanz |
CN108963751B (zh) * | 2018-07-18 | 2020-09-01 | 中国电子科技集团公司第四十四研究所 | 注入锁定半导体激光器 |
CN109193328A (zh) * | 2018-09-25 | 2019-01-11 | 北京工业大学 | 一种可进行脉冲选择的激光器 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US8016A (en) * | 1851-04-01 | Improvement in the manufacture of india-rubber | ||
US6018A (en) * | 1849-01-09 | Improvement in bog-cutters | ||
JP2667255B2 (ja) * | 1989-07-24 | 1997-10-27 | 日立電線株式会社 | 希土類元素添加ガラス導波路増幅器 |
US5867305A (en) * | 1996-01-19 | 1999-02-02 | Sdl, Inc. | Optical amplifier with high energy levels systems providing high peak powers |
US5659644A (en) * | 1996-06-07 | 1997-08-19 | Lucent Technologies Inc. | Fiber light source with multimode fiber coupler |
US6157755A (en) * | 1997-03-17 | 2000-12-05 | Deutsches Zentrum Fuer Luft-Und Raumfahrt E.V. | Laser system |
GB9814526D0 (en) | 1998-07-03 | 1998-09-02 | Univ Southampton | Optical fibre and optical fibre device |
JP2000286489A (ja) * | 1999-03-30 | 2000-10-13 | Kdd Corp | 光増幅器 |
US6243515B1 (en) * | 1999-06-18 | 2001-06-05 | Trw Inc. | Apparatus for optically pumping an optical fiber from the side |
JP5103908B2 (ja) * | 2007-01-04 | 2012-12-19 | 住友電気工業株式会社 | 光学モジュール |
US8964801B2 (en) * | 2009-06-11 | 2015-02-24 | Esi-Pyrophotonics Lasers, Inc. | Method and system for stable and tunable high power pulsed laser system |
-
2010
- 2010-02-17 GB GBGB1002740.7A patent/GB201002740D0/en not_active Ceased
-
2011
- 2011-02-10 JP JP2012553383A patent/JP5822850B2/ja active Active
- 2011-02-10 CN CN201180009983.XA patent/CN102763291B/zh active Active
- 2011-02-10 US US13/261,394 patent/US8605762B2/en active Active
- 2011-02-10 WO PCT/GB2011/000180 patent/WO2011101614A1/en active Application Filing
- 2011-02-10 EP EP11705651.5A patent/EP2537214B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN102763291B (zh) | 2014-10-29 |
EP2537214B1 (en) | 2017-06-21 |
CN102763291A (zh) | 2012-10-31 |
GB201002740D0 (en) | 2010-04-07 |
WO2011101614A1 (en) | 2011-08-25 |
US20120300797A1 (en) | 2012-11-29 |
EP2537214A1 (en) | 2012-12-26 |
US8605762B2 (en) | 2013-12-10 |
JP2013520026A (ja) | 2013-05-30 |
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