Experimental research on smoothing by spectral dispersion based on wave-guide phase modulator

Zhang Rui; Wang Jian-Jun; Su Jing-Qin; Liu Lan-Qin; Ding Lei; Tang Jun; Liu Hua; Jing Feng; Zhang Xiao-Min

doi:10.7498/aps.59.6290

Abstract

Precise physical experiments place strict requirements on target illumination uniformity in inertial confinement fusion. Currently, the main stream of beam smoothing technology adopted in solid-state laser driver is smoothing by spectral dispersion (SSD). The SSD based on wave-guide phase modulator is experimentally studied here. The experimental results indicate that this phase modulator can easily broaden the narrow-band light generated from a DFB laser to 0.1 nm to 1.5 nm bandwidth. The far-field analysis indicates the experimental results are in good accordance with the simulation results. In the meantime, nearfield modulation around 100 μm after the dispersion grating could be smoothed significantly. The research lays experimental basis for the optimization of beam smoothing in high-power laser facility.

Keywords:

Authors and contacts

1.
Research Center of Laser Fusion, CAEP, Mianyang 621900, China

References

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Cited By

[1]	Skupsky S, Short R W, Kessler T, Craxton R S, Letzring S, Soures J M 1989 J. Appl. Phys. 66 3456
[2]	Rothenberg J E 1997 J. Opt. Soc. Am. B 14 1664
[3]	Miyaji G, Miyanaga N, Urushihara S, Suzuki K, Matsuoka S, Nakatsuka M, Morimoto A, Kobayashi T 2002 Opt. Lett. 27 725
[4]	Lindl J D, Amendt P, Berger R L, Glendinning S G, Glenzer S H, Haan S W, Kauffman R L, Landen O L, Suter L J 2004 Phys. Plasmas 11 339
[5]	Jiang X J, Zhou S L, Lin Z Q, Zhu J 2006 Acta Phys. Sin. 55 4595 (in Chinese)[江秀娟、周申蕾、林尊琪、朱俭 2006 55 4595]
[6]	Jiang X J, Zhou S L, Lin Z Q, Zhu J 2006 Acta Phys. Sin. 55 5824 (in Chinese)[江秀娟、周申蕾、林尊琪、朱俭 2006 55 5824]
[7]	Li P, Su J Q, Ma C, Zhang R, Jing F 2009 Acta Phys. Sin. 58 6210 (in Chinese)[李平、粟敬钦、马驰、张锐、景峰 2009 58 6210]

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Catalog

Vol. 59, Issue 9 - 2010-05-05

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