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  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1992),
  • paper CThI21

Simple method for coupling efficiency improvement between waveguide and polarization-maintaining fiber

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Abstract

In practical use, the coupling efficiency between optical fiber and LiNbO3 channel waveguide is an important factor. Recently, polarization-maintaining fiber (PMF) has aroused interest for the fiber-optic gyroscope (FOG) system and other sensing systems. In general, coupling efficiency depends on the relative shapes of the channel waveguide .and the optical fiber cross-sections.1 The purpose of this paper is to use a simple titanium diffusion method to control the optical shape of channel Waveguide to match that of a PMF.

© 1992 Optical Society of America

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