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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 2 — Jan. 15, 2007
  • pp: 169–171

High-efficiency 1.5 μ m thick optical axis grating and its use for laser beam combining

Svetlana Serak, Nelson Tabiryan, and Boris Zeldovich  »View Author Affiliations

Optics Letters, Vol. 32, Issue 2, pp. 169-171 (2007)

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We demonstrate an optical axis grating (OAG) recorded in a nematic liquid crystal that yields a higher than 80% diffraction efficiency and over 800:1 switching contrast between diffraction orders for a laser beam of a red wavelength in a material layer only 1.5 μ m thick. The grating was used for combining two laser beams with high efficiency. These observations prove the feasibility of new generation high-efficiency diffractive optical components, which are most promising for infrared and high-power applications owing to their enhanced transparency and reduced thermal effects in thin material layers.

© 2006 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

Original Manuscript: September 11, 2006
Revised Manuscript: October 11, 2006
Manuscript Accepted: October 23, 2006
Published: December 23, 2006

Svetlana Serak, Nelson Tabiryan, and Boris Zeldovich, "High-efficiency 1.5 μm thick optical axis grating and its use for laser beam combining," Opt. Lett. 32, 169-171 (2007)

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