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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 11, Iss. 8 — Aug. 1, 2013
  • pp: 081404–

Experimental investigation on beam smoothing by combined spectral dispersion and lens array technology

Youen Jiang, Shenlei Zhou, Rong Wu, Jinghui Li, Xuechun Li, and Zunqi Lin  »View Author Affiliations


Chinese Optics Letters, Vol. 11, Issue 8, pp. 081404- (2013)


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Abstract

The experimental performance of beam smoothing by combined one-dimensional (1D) spectral dispersion and lens array (LA) technology is presented, as applied in the ninth beam of SG-II. Using 3\omega spectral dispersion with a bandwidth of 270 GHz and a line dispersion that is 24.9 times the beam's diffraction-limited width decreases the focal spot non-uniformity of 80% energy concentration from 46% to 17%. The multiple-beam interference properties of the LA are theoretically and experimentally validated by spatial power spectral density analysis. Peak-spectra suppression ratios of 20 and 10 dB are achieved in the dispersion and orthogonal directions, respectively.

© 2013 Chinese Optics Letters

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(030.6600) Coherence and statistical optics : Statistical optics
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(350.2660) Other areas of optics : Fusion

ToC Category:
Lasers and Laser Optics

Citation
Youen Jiang, Shenlei Zhou, Rong Wu, Jinghui Li, Xuechun Li, and Zunqi Lin, "Experimental investigation on beam smoothing by combined spectral dispersion and lens array technology," Chin. Opt. Lett. 11, 081404- (2013)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-11-8-081404

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