JP7341673B2 - レーザ装置 - Google Patents
レーザ装置 Download PDFInfo
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- JP7341673B2 JP7341673B2 JP2019033984A JP2019033984A JP7341673B2 JP 7341673 B2 JP7341673 B2 JP 7341673B2 JP 2019033984 A JP2019033984 A JP 2019033984A JP 2019033984 A JP2019033984 A JP 2019033984A JP 7341673 B2 JP7341673 B2 JP 7341673B2
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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
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/042—Arrangements for thermal management for solid state lasers
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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
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/0407—Liquid cooling, e.g. by water
-
- 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
- H01S3/0602—Crystal lasers or glass lasers
- H01S3/0604—Crystal lasers or glass lasers in the form of a plate or disc
-
- 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
- H01S3/0619—Coatings, e.g. AR, HR, passivation layer
- H01S3/0621—Coatings on the end-faces, e.g. input/output surfaces of the laser light
-
- 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
- H01S3/0619—Coatings, e.g. AR, HR, passivation layer
- H01S3/0625—Coatings on surfaces other than the end-faces
-
- 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
- H01S3/08072—Thermal lensing or thermally induced birefringence; Compensation thereof
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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
-
- 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
- H01S3/0619—Coatings, e.g. AR, HR, passivation layer
- H01S3/0621—Coatings on the end-faces, e.g. input/output surfaces of the laser light
- H01S3/0623—Antireflective [AR]
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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
- H01S3/05—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
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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
- H01S3/094038—End pumping
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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
- H01S3/14—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
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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
- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S3/2308—Amplifier arrangements, e.g. MOPA
- H01S3/2325—Multi-pass amplifiers, e.g. regenerative amplifiers
- H01S3/2333—Double-pass amplifiers
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lasers (AREA)
Description
図1を参照して、一実施形態によるレーザ装置1の一構成例について説明する。図1は、一実施形態によるレーザ装置1の一構成例を示す図である。
図7を参照して、第1実施形態によるレーザ装置1の応用でレーザ発振が可能であることについて説明する。図7は、一実施形態によるレーザ装置1の一構成例を示す図である。
10 入射レーザ光生成装置
11 入射レーザ光
111 光軸
112 断面
12、120 出射レーザ光
13 反射レーザ光
131 光軸
20 レーザ媒質
21 第1表面
22 第2表面
221 第1領域
222 第2領域
30 断熱膜
31 欠損領域
40 冷却装置
41 噴流
50 励起光生成装置
51 励起光
61 ダイクロイックミラー
62 共振ミラー
63 共振ミラー
Claims (7)
- 外部から入射レーザ光が入射する第1表面と、垂線に対して臨界角以上の角度で入射した前記入射レーザ光を全反射する第2表面とを有するレーザ媒質と、
前記レーザ媒質の前記第2表面のうち、前記入射レーザ光を全反射する第1領域の周囲を囲む第2領域を被う断熱膜と、
前記第2表面の前記第1領域に向けて噴流を噴射して前記レーザ媒質を冷却する冷却装置と
を具備し、
前記第1領域において前記レーザ媒質は露出している
レーザ装置。 - 請求項1に記載のレーザ装置において、
前記入射レーザ光を生成する入射レーザ光生成装置と、
前記レーザ媒質の前記第1領域に向けて照射する励起光を生成する励起光生成装置と
をさらに具備する
レーザ装置。 - 請求項2に記載のレーザ装置において、
前記励起光を前記入射レーザ光と同じ光軸で前記レーザ媒質に入射するように構成された光学素子
をさらに具備する
レーザ装置。 - 請求項1~3のいずれか一項に記載のレーザ装置において、
前記断熱膜の厚さは、前記入射レーザ光の波長の4分の1倍以上、かつ、前記波長の4分の21倍以下である
レーザ装置。 - 請求項1~4のいずれか一項に記載のレーザ装置において、
前記断熱膜は、
前記第2領域の反射率を高める増反射膜
を具備する
レーザ装置。 - 請求項1~4のいずれか一項に記載のレーザ装置において、
前記断熱膜は、
前記第2領域の透過率を高める反射防止膜
を具備する
レーザ装置。 - 請求項2~6のいずれか一項に記載のレーザ装置において、
外部から前記レーザ媒質に入射する前記入射レーザ光を透過し、前記第1領域で全反射した前記入射レーザ光の少なくとも一部を前記第1領域に向けて反射する第1共振ミラーと、
前記第1領域で全反射した前記入射レーザ光を前記第1領域に向けて前記第1共振ミラーより高い反射率で反射する第2共振ミラーと
をさらに具備し、
前記第1共振ミラーおよび前記第2共振ミラーの間でレーザ発振を行ってレーザ光を出射する
レーザ装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019033984A JP7341673B2 (ja) | 2019-02-27 | 2019-02-27 | レーザ装置 |
PCT/JP2019/045479 WO2020174779A1 (ja) | 2019-02-27 | 2019-11-20 | レーザ装置 |
US17/267,665 US11569630B2 (en) | 2019-02-27 | 2019-11-20 | Laser apparatus |
EP19917092.9A EP3820004B1 (en) | 2019-02-27 | 2019-11-20 | Laser device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019033984A JP7341673B2 (ja) | 2019-02-27 | 2019-02-27 | レーザ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020141002A JP2020141002A (ja) | 2020-09-03 |
JP7341673B2 true JP7341673B2 (ja) | 2023-09-11 |
Family
ID=72238571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019033984A Active JP7341673B2 (ja) | 2019-02-27 | 2019-02-27 | レーザ装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11569630B2 (ja) |
EP (1) | EP3820004B1 (ja) |
JP (1) | JP7341673B2 (ja) |
WO (1) | WO2020174779A1 (ja) |
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- 2019-02-27 JP JP2019033984A patent/JP7341673B2/ja active Active
- 2019-11-20 WO PCT/JP2019/045479 patent/WO2020174779A1/ja unknown
- 2019-11-20 US US17/267,665 patent/US11569630B2/en active Active
- 2019-11-20 EP EP19917092.9A patent/EP3820004B1/en active Active
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EP3820004A1 (en) | 2021-05-12 |
US11569630B2 (en) | 2023-01-31 |
EP3820004A4 (en) | 2021-09-08 |
EP3820004B1 (en) | 2024-04-24 |
WO2020174779A1 (ja) | 2020-09-03 |
US20210203118A1 (en) | 2021-07-01 |
JP2020141002A (ja) | 2020-09-03 |
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