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Fabrication of integrated-optic polarization controller using Z-propagating Ti-LiNbO3 waveguides

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4 Author(s)
Kawazoe, T. ; Sumitomo Metal Min. Co. Ltd., Tokyo, Japan ; Satoh, K. ; Hayashi, I. ; Mori, Hiroshi

The fabrication and performance of a LiNbO3-based waveguide-type polarization controller with a Ti-indiffused waveguide along the z axis is reported. The device, designed for use at 1.55-μm wavelength and consisting of a TE/TM mode converter and a phase shifter in series, exhibited the half-wave voltages of 25 and 20 V for the TE/TM mode converter and the phase shifter, respectively. The modal birefringence and the behavior of the respective elements under applied fields are described in some detail. In addition, a preliminary performance test of the device was conducted by placing the device in a Mach-Zehnder interferometer

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Lightwave Technology, Journal of  (Volume:10 ,  Issue: 1 )