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Proceedings Paper

Fiber and channel waveguide coupling improvement by mode pattern control
Author(s): Jiunn-Chyi Lee; How-Chiang Lee; Ching-Ting M. Lee
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Paper Abstract

In practical applications, the resultant channel waveguide of LiNbO3 substrate should be efficiently coupled to the single mode fiber. The core shape of single mode fiber is a circular distribution, but that of the conventional Ti:LiNbO3 channel waveguide is a semi-elliptical distribution. Optical mode patterns of channel waveguide and single mode fiber can not achieve the mode matching conditions. To improve coupling efficiency between channel waveguide and single mode fiber with arbitrary dimensions, the refractive index profiles and associated fundamental mode patterns of buried Ti/Mg:LiNbO3 channel waveguides are simulated and controlled from fabrication parameters. We have also investigated the dependences of coupling loss on radial and axial offsets.

Paper Details

Date Published: 23 October 1992
PDF: 10 pages
Proc. SPIE 1813, Optoelectronic Component Technologies, (23 October 1992); doi: 10.1117/12.131237
Show Author Affiliations
Jiunn-Chyi Lee, National Central Univ. (Taiwan)
How-Chiang Lee, National Central Univ. (Taiwan)
Ching-Ting M. Lee, National Central Univ. (Taiwan)

Published in SPIE Proceedings Vol. 1813:
Optoelectronic Component Technologies
GouChung Chi; Chi-Shain Hong, Editor(s)

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