Photorefractive beam coupling between orthogonally polarized light beams by linear dichroism in Cu-doped potassium sodium strontium barium niobate
JOSA B, Vol. 16, Issue 1, pp. 111-116 (1999)
http://dx.doi.org/10.1364/JOSAB.16.000111
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Abstract
Two-beam coupling between orthogonally polarized waves is demonstrated by use of linear dichroism in Cu-doped potassium sodium strontium barium niobate. A maximum coupling gain coefficient of approximately 4 cm−1 is obtained at a grating spacing of 1 μm and a wavelength of 514.5 nm, where linear dichroism is moderate. The experimental results are compared with a theoretical model that allows a photorefractive grating to have an arbitrary phase shift with respect to an intensity-interference pattern. Fitting results indicate that the grating is not 90°-phase-shifted under open-circuit conditions. The contribution of the bulk photovoltaic field to the photorefractive phase shift is discussed.
© 1999 Optical Society of America
[Optical Society of America ]
OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.5330) Nonlinear optics : Photorefractive optics
(190.7070) Nonlinear optics : Two-wave mixing
Citation
Yasuo Tomita and Shun-suke Matsushima, "Photorefractive beam coupling between orthogonally polarized light beams by linear dichroism in Cu-doped potassium sodium strontium barium niobate," J. Opt. Soc. Am. B 16, 111-116 (1999)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-16-1-111
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