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Proceedings Paper

Tunable multichannel isolation filter using a fiber-to-LiNbO3 coupler with intermediate coupling layer
Author(s): Kyung-Rak Sohn; Jaewon Song
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Paper Abstract

We report the periodic filtering properties of a side- polished single-mode fiber-to-MMOW coupler using a polished LiNbO3 overlay waveguide. The tuning behaviors by thermo-optic effect of an IMCL with a photopolymer have been demonstrated. A possibility to be used for multi-channel isolation filter of WDM and multi-channel light source is investigated. The coupling phenomenon with an IMCL and without an IMCL is simulated and compared to the experimental results. The output spectra of this filter show a free spectral range with 4nm when the X-cut LiNbO3 with 200 μm thickness are used to an MMOW. This filter was applied to a fiber ring laser and tunable dual- wavelength operations have been demonstrated.

Paper Details

Date Published: 16 October 2001
PDF: 9 pages
Proc. SPIE 4603, Fiber Optics and Optoelectronics for Network Applications, (16 October 2001); doi: 10.1117/12.444555
Show Author Affiliations
Kyung-Rak Sohn, Gumi Polytechnic College (South Korea)
Jaewon Song, Kyungpook National Univ. (South Korea)


Published in SPIE Proceedings Vol. 4603:
Fiber Optics and Optoelectronics for Network Applications

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