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Channel Optical Waveguides with Spatial Longitudinal Modulation of Their Parameters Induced in Photorefractive Lithium Niobate Samples

Published date:May 07 2018

Journal Title: KnE Engineering

Issue title: Russian Forum of Young Scientists (RFYS)

Pages:147–155

DOI: 10.18502/keg.v3i4.2237

Authors:
Abstract:

The influence of point-by-point exposure of lithium niobate sample surface, doped with photorefractive impurities, to the longitudinal modulation of refractive index inside the formed waveguide channel is experimentally studied using optical probing method. Formation of channel waveguides by laser beam in different directions with respect to the crystal optical axis has been demonstrated. The channel waveguides have been formed via the point-by-point exposure at light wavelengths of 532 nm and 450 nm. Variation of distance between exposing light spot centres demonstrates the possibilities of optical inducing of longitudinally homogeneous and inhomogeneous channel waveguides.

References:

[1] Hirohito Yamada, Tao Chu, Satomi Ishida and Yasuhiko Arakawa 2006 IEEE Journal of Selected Topics in Quantum Electronics vol 12 pp 1371-1379


[2] Dominik G Rabus, Zhixi Bian, and Ali Shakouri 2007 IEEE Journal of Selected Topics in Quantum Electronics vol 13 pp 1249-1256


[3] Marco Bazzan and Cinzia Sada 2015 Applied Physic Reviews vol 2 pp 040603-1 – 040603-25


[4] Trenikhin P, Shandarov V and Chen F 2011 Doklady TUSURa № 2 (24) Part 2 pp 131-134


[5] Kanshu A et al. Appl. Phys. B. 2009 vol 95 № 3 pp 537–543


[6] Kip D Appl. Phys. B. 1998 vol 67 p 131

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