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Proceedings Paper

Fast trimming of electro-optic polymer waveguide Y-branches by postphotobleaching for tuning the power splitting ratio
Author(s): Antao Chen; Vadim Chuyanov; Felix Ignacio Marti-Carrera; Sean M. Garner; William H. Steier; Shane S. H. Mao; Younsoo Ra; Larry Raymond Dalton
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Paper Abstract

We present a novel post-fabrication laser trimming technique to adjust the power splitting ratio of strip waveguide Y-branches made in thermally crosslinked electro-optic polymers. The trimming is based on the irreversible index change due to photobleaching. Our method uses simple equipment and the process takes only a few seconds. Waveguides made by both reactive ion etching and photobleaching are trimmable. An adjustable range of the splitting ratio as wide as is achieved with less than 0.2 dB of excess loss. This in situ trimming technique is effective for both the TE and TM modes of the waveguide and is very suitable for automated device processing.

Paper Details

Date Published: 13 October 1997
PDF: 7 pages
Proc. SPIE 3147, Nonlinear Optical Properties of Organic Materials X, (13 October 1997); doi: 10.1117/12.279318
Show Author Affiliations
Antao Chen, Univ. of Southern California (United States)
Vadim Chuyanov, Univ. of Southern California (United States)
Felix Ignacio Marti-Carrera, Univ. of Southern California (United States)
Sean M. Garner, Univ. of Southern California (United States)
William H. Steier, Univ. of Southern California (United States)
Shane S. H. Mao, Univ. of Southern California (United States)
Younsoo Ra, Univ. of Southern California (United States)
Larry Raymond Dalton, Univ. of Southern California (United States)


Published in SPIE Proceedings Vol. 3147:
Nonlinear Optical Properties of Organic Materials X
Mark G. Kuzyk, Editor(s)

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