JP2005251981A - 固体レーザーの増幅法 - Google Patents
固体レーザーの増幅法 Download PDFInfo
- Publication number
- JP2005251981A JP2005251981A JP2004060438A JP2004060438A JP2005251981A JP 2005251981 A JP2005251981 A JP 2005251981A JP 2004060438 A JP2004060438 A JP 2004060438A JP 2004060438 A JP2004060438 A JP 2004060438A JP 2005251981 A JP2005251981 A JP 2005251981A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- laser
- laser light
- laser beam
- solid
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
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
- H01S3/23—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
-
- 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
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
- H01S3/10023—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors
-
- 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
- H01S3/0606—Crystal lasers or glass lasers with polygonal cross-section, e.g. slab, prism
-
- 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
-
- 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
- H01S3/08095—Zig-zag travelling beam through the active medium
-
- 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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10076—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating using optical phase conjugation, e.g. phase conjugate reflection
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
従来からレーザー光の増幅は、レーザー光を増幅器にシングルパスさせることによって行われてきたので、発振器から出力されるレーザー光のエネルギーは一般に低いため、十分に増幅器に蓄積されているエネルギーを抽出することはできず、レーザー出力や効率が低いという欠点があった。
【解決手段】
本発明の固体レーザーの増幅法は、レーザー光を多数回且つ空間的にむらなく増幅器をパスさせることにより増幅器に蓄積されているエネルギーを効率よく抽出でき、又1台の増幅器のみで発熱によるレーザー光の歪みを補正できる。
【選択図】 図4
Description
発振器から出力されるレーザー光1のエネルギーは一般に低いので、図1に示すようなシングルパス方式では飽和増幅を行うことがでないため、十分に増幅器2に蓄積されているエネルギーを抽出することはできず、レーザー出力や効率が低いという欠点があった。
J. L. Emmett et al. Lawrence Livermore Laboratory, No. UCRL- 52863, April (1980)
2…増幅器
31…折り返し鏡
32…折り返し鏡
33…折り返し鏡
34…折り返し鏡
41…偏光素子
42…偏光素子
5…ファラデー回転子
6…位相共役鏡
Claims (4)
- 発振器から出力されるレーザー光に対して折り返し鏡や偏光素子を配置し、偏光の回転を利用することにより、増幅器にレーザー光を多数回且つむらなくパスさせ、増幅器に蓄えられているエネルギーを効率よく抽出することを特徴とする固体レーザーの増幅法。
- レーザー光の偏光状態を45度回転できる偏光回転子及び時間反転波を発生できる位相共役鏡を用いることにより、1台の増幅器だけで増幅器の発熱によるレーザー光の熱歪み(熱レンズ効果、熱複屈折効果)を補正できることを特徴とする請求項1記載の固体レーザーの増幅法。
- 増幅器に使用する固体レーザー材料は希土類イオンなどをドープした結晶、ガラスまたはセラミックなどで、励起光源には半導体レーザーやフラッシュランプなどを用いることを特徴とする請求項1又は請求項2の固体レーザー光の増幅法。
- 増幅器には、冷却面を大きく取れるので単位長さ当たりの蓄積エネルギーを大きく取ることができ、増幅レーザー光の利得は均一でレーザー光の熱歪みを低減させることができるジグザグスラブ型を用いることを特徴とする請求項1、請求項2又は請求項3の固体レーザー光の増幅法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004060438A JP2005251981A (ja) | 2004-03-04 | 2004-03-04 | 固体レーザーの増幅法 |
US10/927,506 US7274723B2 (en) | 2004-03-04 | 2004-08-27 | Method for amplifying a solid-state laser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004060438A JP2005251981A (ja) | 2004-03-04 | 2004-03-04 | 固体レーザーの増幅法 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2005251981A true JP2005251981A (ja) | 2005-09-15 |
Family
ID=34909200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004060438A Pending JP2005251981A (ja) | 2004-03-04 | 2004-03-04 | 固体レーザーの増幅法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7274723B2 (ja) |
JP (1) | JP2005251981A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9698556B2 (en) | 2013-09-02 | 2017-07-04 | Mitsubishi Electric Corporation | Laser amplification device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0215847D0 (en) * | 2002-07-09 | 2002-08-14 | Imp College Innovations Ltd | Optical amplifying device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08222792A (ja) * | 1995-02-17 | 1996-08-30 | Mitsubishi Electric Corp | レーザ増幅器およびレーザ発振器 |
JPH09509010A (ja) * | 1994-02-15 | 1997-09-09 | コヒーレント・インク | 熱的に誘起された複屈折によるレーザビームの減偏光を最小化する装置 |
JPH1041565A (ja) * | 1996-07-18 | 1998-02-13 | Hamamatsu Photonics Kk | 固体レーザ増幅器 |
JP2003502875A (ja) * | 1999-06-24 | 2003-01-21 | ロッキード マーティン コーポレイション | 超音波の高速レーザを検出するシステムと方法 |
JP2005101223A (ja) * | 2003-09-24 | 2005-04-14 | Japan Science & Technology Agency | 高出力レーザー増幅器 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6096598A (en) | 1998-10-29 | 2000-08-01 | International Business Machines Corporation | Method for forming pillar memory cells and device formed thereby |
US5974060A (en) * | 1999-01-05 | 1999-10-26 | Raytheon Company | Multi-mode laser oscillator with large intermode spacing |
-
2004
- 2004-03-04 JP JP2004060438A patent/JP2005251981A/ja active Pending
- 2004-08-27 US US10/927,506 patent/US7274723B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09509010A (ja) * | 1994-02-15 | 1997-09-09 | コヒーレント・インク | 熱的に誘起された複屈折によるレーザビームの減偏光を最小化する装置 |
JPH08222792A (ja) * | 1995-02-17 | 1996-08-30 | Mitsubishi Electric Corp | レーザ増幅器およびレーザ発振器 |
JPH1041565A (ja) * | 1996-07-18 | 1998-02-13 | Hamamatsu Photonics Kk | 固体レーザ増幅器 |
JP2003502875A (ja) * | 1999-06-24 | 2003-01-21 | ロッキード マーティン コーポレイション | 超音波の高速レーザを検出するシステムと方法 |
JP2005101223A (ja) * | 2003-09-24 | 2005-04-14 | Japan Science & Technology Agency | 高出力レーザー増幅器 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9698556B2 (en) | 2013-09-02 | 2017-07-04 | Mitsubishi Electric Corporation | Laser amplification device |
Also Published As
Publication number | Publication date |
---|---|
US20050195880A1 (en) | 2005-09-08 |
US7274723B2 (en) | 2007-09-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5615259B2 (ja) | マルチパス光パワー増幅器 | |
JP2007523499A (ja) | レーザ装置 | |
JPH11330597A (ja) | 短パルスレ―ザシステム | |
KR20150138050A (ko) | 외부 확산 증폭기 | |
US10630044B2 (en) | Frequency-doubled laser and method of generating harmonic laser | |
JP2005313195A (ja) | 二波長重畳型レーザ出射ユニット及びレーザ加工装置 | |
JP2005340763A (ja) | マイクロチップレーザ装置 | |
JP3715800B2 (ja) | レーザ照射装置 | |
JP2002141588A (ja) | 固体レーザ装置および固体レーザ装置システム | |
Payne et al. | Diode-pumped solid-state lasers for inertial fusion energy | |
JP2005251981A (ja) | 固体レーザーの増幅法 | |
JP2005268506A (ja) | 固体レーザー増幅器 | |
US20040042524A1 (en) | Thin disk laser with large numerical aperture pumping | |
Liu et al. | High-pulse-energy ultraviolet Ce3+: LiCaAlF6 laser oscillator with newly designed pumping schemes | |
JP2006203117A (ja) | 固体レーザ装置 | |
CN114883896A (zh) | 一种2μm激光器 | |
JPH06120586A (ja) | 固体レーザ装置 | |
JPH09312430A (ja) | ジグザグスラブ固体レーザ及び増幅器 | |
Dudley et al. | Direct 880 nm diode-pumping of vanadate lasers | |
JP2009194176A (ja) | 固体レーザ装置及びレーザ加工方法 | |
JP2004172230A (ja) | 二つのレーザー媒体を用いたレーザー装置 | |
JP2003158325A (ja) | 受動qスイッチレーザ | |
Huegel et al. | Solid state thin disk laser | |
Liu et al. | High-energy pulse generation from solid-state ultraviolet lasers using large Ce: fluoride crystals | |
JP2003023194A (ja) | 固体レーザー増幅器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20060223 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070214 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090408 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090413 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090612 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20090612 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100209 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100409 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20100826 |