New approaches to practical guided-wave passive devices based on ion-exchange technologies in glass

Masafumi Seki; Shiro Sato; Kenichi Nakama; Hiroshi Wada; Hideki Hashizume; Shigeru Kobayashi

doi:10.1117/12.50888

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1 December 1991 New approaches to practical guided-wave passive devices based on ion-exchange technologies in glass

Masafumi Seki; Shiro Sato; Kenichi Nakama; Hiroshi Wada; Hideki Hashizume; Shigeru Kobayashi

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Proceedings Volume 1583, Integrated Optical Circuits; (1991) https://doi.org/10.1117/12.50888
Event: OE Fiber, 1991, Boston, MA, United States

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.

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Masafumi Seki, Shiro Sato, Kenichi Nakama, Hiroshi Wada, Hideki Hashizume, and Shigeru Kobayashi "New approaches to practical guided-wave passive devices based on ion-exchange technologies in glass", Proc. SPIE 1583, Integrated Optical Circuits, (1 December 1991); https://doi.org/10.1117/12.50888

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KEYWORDS

Waveguides

Ion exchange

Optical fibers

Receivers

Photonic integrated circuits

Glasses

Polarization

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