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Proceedings Paper

Tunable laser oscillation with optical switches and grating on polysilane optical waveguides
Author(s): Daiki Motoyoshi; Seigi Oki; Toshihiro Suda; Yoshiaki Yamabayashi; Soichi Kobayashi
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Paper Abstract

Polysilane waveguides present advantages of ease in processing using photo-bleaching technology for drawing Bragg grating on the polysilane film and a larger thermo-optic (T/O) effect more than silica. In this paper we present the tunable lasers (TLs) composed of the LD module and the optical switch and grating circuits, and those characteristics. The TLs oscillate with the reflected wave at the Bragg grating. The switches and Bragg gratings, which are fabricated on the polysilane waveguide, are used for rough and fine tuning operations. The switches are composed of directional couplers with the thin film metal heaters. A channel selection at each output port is performed by choosing specific heaters. The wavelength fine tuning is performed with T/O effect on the Bragg grating. The laser oscillation with the monolithic optical circuit showed that the oscillation wavelength was 1564.16 nm, laser power was -9 dBm, oscillation bandwidth was less than 0.1 nm and the power ratio between main and side modes was more than 30 dB.

Paper Details

Date Published: 10 February 2009
PDF: 7 pages
Proc. SPIE 7219, Optoelectronic Integrated Circuits XI, 721909 (10 February 2009); doi: 10.1117/12.811818
Show Author Affiliations
Daiki Motoyoshi, Chitose Institute of Science and Technology (Japan)
Seigi Oki, Chitose Institute of Science and Technology (Japan)
Toshihiro Suda, Photonic Science Technology, Inc. (Japan)
Yoshiaki Yamabayashi, Chitose Institute of Science and Technology (Japan)
Soichi Kobayashi, Chitose Institute of Science and Technology (Japan)

Published in SPIE Proceedings Vol. 7219:
Optoelectronic Integrated Circuits XI
Louay A. Eldada; El-Hang Lee, Editor(s)

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