Numerical simulation of stable second harmonic generation using phase mismatching

deng qing-hua; peng han-sheng; li ming-zhong; ding lei; wang jian-jun

Volume 19 Issue 03

Mar. 2007

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Article Navigation > High Power Laser and Particle Beams > 2007 > 19(03): 0-

cheng xinbing, zhang yu, zhang hongbo, et al. Theoretical analysis of discharge process of spiral Blumlein pulse forming line[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

deng qing-hua, peng han-sheng, li ming-zhong, et al. Numerical simulation of stable second harmonic generation using phase mismatching[J]. High Power Laser and Particle Beams, 2007, 19.

cheng xinbing, zhang yu, zhang hongbo, et al. Theoretical analysis of discharge process of spiral Blumlein pulse forming line[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

deng qing-hua, peng han-sheng, li ming-zhong, et al. Numerical simulation of stable second harmonic generation using phase mismatching[J]. High Power Laser and Particle Beams, 2007, 19.

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Numerical simulation of stable second harmonic generation using phase mismatching

1.
Research Center of Laser Fusion,CAEP,P.O.Box 919-988,Mianyang 621900,China;
2.
Graduate School of China Academy of Engineering Physics,Mianyang 621900 China;
3.
China Academy of Engineering Physics,P.O.Box 919-1,Mianyang 621900,China

Publish Date: 2007-03-15

Abstract

Abstract

A method is put forward to stabilize the second harmonic generation using phase mismatching. BBO type Ⅰ phase matching SHG course and KTP type Ⅱ phase matching course were simulated. Simulation results show that both type Ⅰ and type Ⅱ phase matching can get 2ω stable output by letting laser deviate from phase matching angle. With the increasement of the deviating angle, the length of the nonlinear crystal required to get stable 2ω output reduces, the fluctuation and the conversion efficiency of second harmonic generation output when the stable 2ω output is obtained become smaller. Compared with KTP type Ⅱ phase matching, BBO type Ⅰ phase matching is more sensitive to deviating angle and the conversion efficiency is smaller.
- phase mismatching,
- second harmonic generation,
- deviating angle,
- bbo crystal,
- numerical simulation

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