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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 11 — Apr. 10, 1998
  • pp: 2170–2176

Characteristics of recording and thermal fixing in lithium niobate

Bo Liu, Liren Liu, and Liangying Xu  »View Author Affiliations


Applied Optics, Vol. 37, Issue 11, pp. 2170-2176 (1998)
http://dx.doi.org/10.1364/AO.37.002170


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Abstract

We present a theoretical model in which the band-transport equations and the coupled-wave equations are considered to study the two thermal-fixing methods (simultaneous fixing and postfixing) in Fe:LiNbO3. We found that, in simultaneous fixing, the existing ionic-grating affects the writing of the electronic grating by reduction of the coupling gain, and the grating envelope of the fixed-index grating is quite uniform inside the photorefractive crystal in comparison with the method of postfixing. The resulting diffraction efficiency of the fixed-volume grating is dependent mainly on the initial intensity modulation of the two writing beams. A set of experiments is also presented.

© 1998 Optical Society of America

OCIS Codes
(140.6810) Lasers and laser optics : Thermal effects
(160.3730) Materials : Lithium niobate

History
Original Manuscript: June 6, 1997
Revised Manuscript: September 25, 1997
Published: April 10, 1998

Citation
Bo Liu, Liren Liu, and Liangying Xu, "Characteristics of recording and thermal fixing in lithium niobate," Appl. Opt. 37, 2170-2176 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-11-2170

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