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Long-Period Grating on Strip Ti : LiNbO _{3} Waveguide Embedded in Planar Ti : LiNbO _{3} Waveguide

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3 Author(s)
Ping-Rang Hua ; Department of Opto-electronics and Information Engineering, School of Precision Instruments and Opto-electronics Engineering, Department of Electronic Engineering, Tianjin University, City University of Hong Kong, Tianjin, Kowloon, P. R. ChinaHong Kong SAR, China ; De-Long Zhang ; Edwin Yue-Bun Pun

A special structure of a strip Ti : LiNbO3 waveguide embedded in a planar Ti : LiNbO3 waveguide is proposed to fabricate a long-period waveguide grating (LPWG). Its applicability is demonstrated by fabricating a long-period grating on the waveguide surface using usual photoresist. We show that an LPWG device based on such a special structure is thermally stable.

Published in:

IEEE Photonics Technology Letters  (Volume:22 ,  Issue: 18 )