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Proceedings Paper

New approaches to practical guided-wave passive devices based on ion-exchange technologies in glass
Author(s): Masafumi Seki; Shiro Sato; Kenichi Nakama; Hiroshi Wada; Hideki Hashizume; Shigeru Kobayashi
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Paper Abstract

For the use in cost-effective optical communication systems, two types of guided-wave devices have been studied using ion exchange in glass: (1) A microlens-loaded coupler module composed of a polarization-maintaining fiber array, a directional coupler and a twin-microlens array for coherent balanced receivers has been proposed and fabricated with an excess loss of 1.0 dB and an extinction ratio of _> 20 dB for 0-60 degC operation. (2) An optimum mask pattern for splitters has been devised theoretically and verified experimentally, which has reduced the scattering loss to < .0.1 dB and also suppressed their possible bimodal behavior in the branching region.

Paper Details

Date Published: 1 December 1991
PDF: 12 pages
Proc. SPIE 1583, Integrated Optical Circuits, (1 December 1991); doi: 10.1117/12.50888
Show Author Affiliations
Masafumi Seki, Nippon Sheet Glass Co., Ltd. (Japan)
Shiro Sato, Nippon Sheet Glass Co., Ltd. (Japan)
Kenichi Nakama, Nippon Sheet Glass Co., Ltd. (Japan)
Hiroshi Wada, Nippon Sheet Glass Co., Ltd. (Japan)
Hideki Hashizume, Nippon Sheet Glass Co., Ltd. (Japan)
Shigeru Kobayashi, Nippon Sheet Glass Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 1583:
Integrated Optical Circuits

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