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Proceedings Paper

Thin-film filter-based wavelength division multiplexers/demultiplexers in an angle-multiplexed architecture
Author(s): Sarun Sumriddetchkajorn; Kosom Chaitavon
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Paper Abstract

This paper shows how an angle multiplexing concept permits one thin-film filter (TF) to multiplex or demultiplex N wavelength optical beams, leading to cost-effective wavelength division multiplexers/demultiplexers (MUXs/DeMUXs). Our first TF-based wavelength MUX/DeMUX structure is arranged in a reflective design in which only the λN wavelength optical beam cannot be recombined into the main channel. Fully multiplexing and demultiplexing operations can be accomplished by using our transmissive TF-based wavelength MUX/DeMUX architecture. Experimental proof of concept for our reflective TF-based wavelength MUX/DeMUX structure using one TF, a triple fiber-optic collimator, and an optical circulator separates two wavelength optical beams with their channel spacing of 0.8 nm from the main channel. In this case, measured optical losses of 0.67 dB, 1.66 dB, and 2.59 dB are obtained for the first, the second, and the remaining wavelength optical beams, respectively. Optical crosstalk and polarization dependent loss of < -18 dB and < 0.08 dB are also investigated, respectively.

Paper Details

Date Published: 21 September 2006
PDF: 6 pages
Proc. SPIE 6353, Optical Transmission, Switching, and Subsystems IV, 63530R (21 September 2006);
Show Author Affiliations
Sarun Sumriddetchkajorn, National Electronics and Computer Technology Ctr. (Thailand)
Kosom Chaitavon, National Electronics and Computer Technology Ctr. (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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