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Proceedings Paper

A low optical-coherent-crosstalk thin-film filter-based 1x2 fiber-optic add-drop module in a double-reflection configuration
Author(s): Sarun Sumriddetchkajorn; Kosom Chaitavon
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Paper Abstract

This paper proposes and experimentally demonstrates the use of a quadruple fiber-optic collimator rather than a dual fiber-optic collimator to form a much improved low optical coherent crosstalk 1×2 fiber-optic add-drop filter. The use of the dual fiber-optic collimator together with a single fiber-optic collimator forms a passive noise rejector that eliminates unwanted optical noises at both output ports. Our experimental results show a much improved > 39.10 dB optical isolation at the Drop port. In addition, the measured average optical losses at the Drop and the Thru ports are 1.40 dB and 1.23 dB, respectively, when only the TF is in the opticap path. A low polarization dependent loss of < 0.17 dB is also determined. Furthermore, our design concept can be used to form a high optical-isolation fixed three-port add-drop filter and a high dynamic-range wavelength sensitive variable fiber-optic attenuator.

Paper Details

Date Published: 21 September 2006
PDF: 7 pages
Proc. SPIE 6353, Optical Transmission, Switching, and Subsystems IV, 63530Q (21 September 2006); doi: 10.1117/12.685844
Show Author Affiliations
Sarun Sumriddetchkajorn, National Science and Technology Development Agency (Thailand)
Kosom Chaitavon, National Science and Technology Development Agency (Thailand)

Published in SPIE Proceedings Vol. 6353:
Optical Transmission, Switching, and Subsystems IV
Chang Soo Park; Shizhong Xie; Curtis R. Menyuk; Ken-ichi Kitayama, Editor(s)

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