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논문 기본 정보

자료유형
학술저널
저자정보
Jae Sung Shin (Korea Atomic Energy Research Institute) Yong-Ho Cha (Korea Atomic Energy Research Institute) Byung Heon Cha (Korea Atomic Energy Research Institute)
저널정보
한국광학회 Current Optics and Photonics Current Optics and Photonics Vol.3 No.3
발행연도
2019.6
수록면
236 - 242 (7page)

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초록· 키워드

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An Nd:YAG slab structure was designed for a high-power zigzag slab laser amplifier based on computational simulation of the wavefront distortion. For the simulation, the temperature distribution in the slab was calculated at first by thermal analysis. Then, the optical path length (OPL) was obtained by a ray tracing method for the corresponding refractive index variation inside the slab. After that, the OPL distribution of the double-pass amplified beam was calculated by summing the results obtained for the first and second passes. The amount of wavefront distortion was finally obtained as the peak-to-valley value of the OPL distribution. As a result of this study, the length and position of the gain medium were optimized by minimizing the transverse wavefront distortion. Under the optimized conditions, the transverse wavefront distortion of the double-pass amplified beam was less than 0.2 μm for pump power of 14 kW.

목차

I. INTRODUCTION
II. SIMULATION CONDITIONS AND PROCEDURE
III. RESULTS AND DISCUSSION
IV. CONCLUSION
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