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Proceedings Paper

Optical filter utilizing a sharp wavelength response of the directional coupler composed of the K+- and AG+ -ion exchange waveguides
Author(s): Kiyoshi Kishioka; K. Yamamoto
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Paper Abstract

This paper describes a new pass-band optical filter utilizing a sharp wavelength-selective power-transfer occurring in the directional coupler composed of the K+- and Ag+-ion exchange waveguides. The wavelength- selective power-transfer is achieved by greatly different dispersion relations caused by the large mismatch in the index profile between the ion-exchange waveguides forming the directional coupler. A narrow pass-band width of about 7 nm is measured in the filter fabricated in the soda-lime glass substrate. The fabrication technique with two-step ion-exchange of the K+ and Ag+ ions, is also described.

Paper Details

Date Published: 2 January 1998
PDF: 6 pages
Proc. SPIE 3211, International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '96, (2 January 1998); doi: 10.1117/12.345528
Show Author Affiliations
Kiyoshi Kishioka, Osaka Electro-Communication Univ. (Japan)
K. Yamamoto, Osaka Electro-Communication Univ. (Japan)


Published in SPIE Proceedings Vol. 3211:
International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '96

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