KR20070059461A - 고반복률 펨토초 재생 증폭 장치 - Google Patents
고반복률 펨토초 재생 증폭 장치 Download PDFInfo
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- KR20070059461A KR20070059461A KR1020050118323A KR20050118323A KR20070059461A KR 20070059461 A KR20070059461 A KR 20070059461A KR 1020050118323 A KR1020050118323 A KR 1020050118323A KR 20050118323 A KR20050118323 A KR 20050118323A KR 20070059461 A KR20070059461 A KR 20070059461A
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910009372 YVO4 Inorganic materials 0.000 description 1
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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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
- H01S3/1055—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length one of the reflectors being constituted by a diffraction grating
-
- 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
- H01S3/1024—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 for pulse generation
-
- 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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- 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)
Abstract
Description
반복률 | 펄스 스위칭 방법 | 펌핑 소스 | 출력 에너지 |
10 Hz | 광전 변조 | 10ns Q스위칭 녹색 레이저 (Nd:YAG) | ~ 10 mJ |
1-20 kHz | 광전 변조 | 100-300ns Q스위칭 녹색 레이저 (Nd:YLF) | ~ 1 mJ |
100-250 kHz | 음향광학적 변조 | 연속파녹색레이저 (Nd:YVO4,Argon) | ~ 1 μJ |
광학 소자 | 기능 | 2차 분산 (fs2) | 3차 분산(fs3) | 4차 분산 (fs4) |
용융 실리카 프리즘 1쌍 (프리즘 간의 1380mm 분리, 2회 왕복) | 펄스 확대 | -19100 | -103100 | -193000 |
회적 격자 1쌍 (격자수:600 gr/mm, 70°, 회절 격자 간 간격 58 mm) | 펄스 확대 | -47900 | 49700 | -75000 |
압축기 (SF10 광학유리 368 mm 길이) | 펄스 압축 | 58600 | 37200 | 10000 |
기타(브래그셀, 페러데이 회전자, Ti:S, 편광빔스프리터, 처프거울) | 펄스 증폭 | 8400 | 16200 | ~-5000 |
합 | 0 | 0 | -263000 |
파라미터 | 조 건 |
펌핑 에너지 | 1.1J/cm2 (100 kHz에서 200 μJ 펌핑 에너지) |
이득매질에서의 빔 크기 | 지름 150 μm |
왕복 회수 | 30(계산조건) 30-33(실험조건) |
출력 에너지 | 33 μJ (60% 덤핑율로 계산된 것임) 30 μJ (실험조건) |
Claims (13)
- 펄스를 방출하는 레이저 발진기;상기 펄스의 폭을 확대하는 확대기;펄스 스위칭을 위한 음향광학적 변조기, 이득 매질을 펌핑하기 위한 펄스형 레이저, 복수의 거울을 통해 펄스를 왕복시키는 공진기, 및 음의 분산을 주는 적어도 하나의 처프 거울을 구비하여, 상기 펄스를 증폭시키는 재생 증폭기;상기 펄스를 압축하는 압축기;를 포함하는 고반복률 펨토초 재생 증폭 장치.
- 제 1항에 있어서,상기 펌프 레이저는 고반복률 펄스형 녹색 레이저로 구성되는 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
- 제 2항에 있어서,상기 펌프 레이저는 주파수 배가된 Nd:YAG 레이저 또는 Nd:YVO4 레이저로 구성되는 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
- 제 1항에 있어서,상기 레이저 발진기는 Ti:S 펨토초 레이저, 혹은 Ti:S 이득매질의 650- 1100nm 파장 범위에서 펨토초 펄스를 발생시킬 수 있는 레이저로 구성되는 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
- 제 1항에 있어서,상기 이득 매질은 Ti:S 로 구성되는 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
- 제 1항에 있어서,상기 하나 이상의 처프 거울을 이용하여 상기 공진기 내부의 분산을 보상하는 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
- 제 1항 내지 제 6항 중 어느 한 항에 있어서,상기 확대기는 펄스에 음의 분산을 주어 펄스 폭을 확대하는 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
- 제 7항에 있어서,상기 확대기는 한 쌍의 프리즘과 한 쌍의 마주보는 회절격자를 포함하는 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
- 제 1항 내지 제 6항 중 어느 한 항에 있어서,상기 압축기는 광학 유리 블록으로 구성된 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
- 제 1항 내지 제 6항 중 어느 한 항에 있어서,상기 확대기와 압축기에 의해 2차 및 3차 분산을 보상함으로써 펄스 폭을 압축하는 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
- 제 10항에 있어서,상기 압축기로부터 압축되는 펄스의 최소 펄스폭이 50 펨토초 이하가 되는 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
- 제 1항 내지 제 6항 중 어느 한 항에 있어서,상기 재생 증폭기는 20-200 kHz의 반복률을 가지는 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
- 제 1항 내지 제 6항 중 어느 한 항에 있어서,상기 압축기로부터 출력되는 펄스가 100kHz 이하의 반복률을 가질 때 펄스당 20 μJ 이상의 에너지를 발생시키는 것을 특징으로 하는 고반복률 펨토초 재생 증폭 장치.
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KR101898632B1 (ko) * | 2017-04-19 | 2018-09-13 | 주식회사 이오테크닉스 | 레이저 증폭 장치 |
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KR20230064203A (ko) | 2021-11-03 | 2023-05-10 | 한국전기연구원 | 레이저 증폭 매질의 손상한계측정장치 및 손상한계측정방법 |
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US5847863A (en) | 1996-04-25 | 1998-12-08 | Imra America, Inc. | Hybrid short-pulse amplifiers with phase-mismatch compensated pulse stretchers and compressors |
JPH11168252A (ja) | 1997-12-05 | 1999-06-22 | Hitachi Ltd | 小型固体レーザー |
JP4106443B2 (ja) | 2004-03-24 | 2008-06-25 | 独立行政法人産業技術総合研究所 | 広帯域モード同期レーザー発振器及び発振方法 |
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KR101898632B1 (ko) * | 2017-04-19 | 2018-09-13 | 주식회사 이오테크닉스 | 레이저 증폭 장치 |
WO2018194301A1 (ko) * | 2017-04-19 | 2018-10-25 | (주)이오테크닉스 | 레이저 증폭 장치 |
CN110521070A (zh) * | 2017-04-19 | 2019-11-29 | Eo 科技股份有限公司 | 激光放大装置 |
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