Investigation on coaxial double-pass main amplifier in high-power laser fusion driver

Yuxia Zheng; Jian Zhu; Liejia Qian; Dianyuan Fan; Ximing Deng

doi:10.1117/12.253309

30 September 1996 Investigation on coaxial double-pass main amplifier in high-power laser fusion driver

Yuxia Zheng, Jian Zhu, Liejia Qian, Dianyuan Fan, Ximing Deng

Proceedings Volume 2889, High-Power Lasers: Solid State, Gas, Excimer, and Other Advanced Lasers; (1996) https://doi.org/10.1117/12.253309
Event: Photonics China '96, 1996, Beijing, China

Abstract

We have constructed coaxial double-pass amplifiers with individual beamlet aperture of 20 cm in a 2 X 2 array architecture. Each element contains six phosphate glass disks. The amplifier consists of two pairs of disk amplifiers, each six deep, that share a common central flash-lamp array. The central array is expected to be more efficient for the pumping of disks, thereby raising the amplifier storage efficiency. A particular coaxial double- pass amplification optical scheme was designed. The input and output beam are performed by spatial filter. Technique advantage is avoidance of large aperture electric optical switch. In this paper we theoretically calculate population inversion variation in multipass amplification and the gain of multipass amplification. The experimental results are in agreement with the theoretical calculation.

Citation Download Citation

Yuxia Zheng, Jian Zhu, Liejia Qian, Dianyuan Fan, and Ximing Deng "Investigation on coaxial double-pass main amplifier in high-power laser fusion driver", Proc. SPIE 2889, High-Power Lasers: Solid State, Gas, Excimer, and Other Advanced Lasers, (30 September 1996); https://doi.org/10.1117/12.253309

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