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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 14 — May. 10, 2013
  • pp: 3428–3432

Self-polarization smoothing technique based on 2×2 beam array and type II+II third-harmonic generation system

Li Fuquan, Wang Fang, Han Wei, Feng Bin, and Zhou Lidan  »View Author Affiliations


Applied Optics, Vol. 52, Issue 14, pp. 3428-3432 (2013)
http://dx.doi.org/10.1364/AO.52.003428


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Abstract

Polarization smoothing (PS) is highly desired for inertial confinement fusion, high-power laser facilities. A self-PS technique based on 2×2 beam array and type II+II third-harmonic generation (THG) system is proposed in this paper. This scheme takes advantage of a type II+II THG system, which induces a 35° angle between the polarization states of output third-harmonic laser and input fundamental laser. It rotates two THG systems in a 2×2 beam array by 180° to obtain a 70° polarization angle between two sets of output lasers. Simulation results show that the intensity contrast of the overlapped focal spot can be reduced at 1.34× without inserting any additional optics. This approaches the maximum value of various PS techniques (i.e., 1.41×).

© 2013 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(260.5430) Physical optics : Polarization

ToC Category:
Physical Optics

History
Original Manuscript: March 15, 2013
Manuscript Accepted: April 8, 2013
Published: May 10, 2013

Citation
Li Fuquan, Wang Fang, Han Wei, Feng Bin, and Zhou Lidan, "Self-polarization smoothing technique based on 2×2 beam array and type II+II third-harmonic generation system," Appl. Opt. 52, 3428-3432 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-14-3428


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