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

Book · Tue Dec 31 04:00:00 EST 1996

OSTI ID:529695

Yuxia, Zheng; Jian, Zhu; Liejia, Qian; Dianyuan, Fan; Ximing, Deng ^[1]

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1. Academia Sinica, Shanghai (China). National Lab. on High Power Laser and Physics

The authors have constructed coaxial double-pass amplifiers with individual beamlet aperture of 20cm in a 2x2 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 a spatial filter. The advantage of the technique is avoidance of a large aperture electrical optical switch. In this paper the authors theoretically calculate population inversion variation in multipass amplification and the gain of multipass amplification. The experimental results are in agreement with the theoretical calculation.

• OSTI ID: 529695
• Report Number(s): CONF-9611124--; ISBN 0-8194-2290-8
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLIFICATION
EXPERIMENTAL DATA
INERTIAL FUSION DRIVERS
LASER RADIATION
OPTICAL PUMPING
POPULATION INVERSION
SOLID STATE LASERS