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Proceedings Paper

High-extinction ratio TE-pass polarizer fabricated in LiNbO3 by proton exchange and titanium indiffusion
Author(s): Jiarong Ji; Ying Feng
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Paper Abstract

TE-pass integrated optical waveguide polarizers have been made in Z-cut, T-propagating LiNbO3 using titanium indiffusion in conjunction with proton exchange. The two exchanged regions are adjacent to the Ti-indiffused waveguide on both sides and at the output end of the sample. In the proton-exchanged regions, (Delta) ne > 0, (Delta) no < 0. Thus, the TM mode is radiated into the substrate. The polarizer operating at (lambda) equals 1.3 micrometers exhibits an extinction ratio > 53 dB and fiber-waveguide- fiber excess loss is 4 dB.

Paper Details

Date Published: 30 September 1996
PDF: 2 pages
Proc. SPIE 2891, Integrated Optoelectronics, (30 September 1996); doi: 10.1117/12.253176
Show Author Affiliations
Jiarong Ji, National Univ. of Defense Technology (China)
Ying Feng, National Univ. of Defense Technology (China)

Published in SPIE Proceedings Vol. 2891:
Integrated Optoelectronics
Ray T. Chen; Won-Tien Tsang; BingKun Zhou, Editor(s)

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