Thin-film filter-based wavelength division multiplexers/demultiplexers in an angle-multiplexed architecture

Sarun Sumriddetchkajorn; Kosom Chaitavon

doi:10.1117/12.687346

21 September 2006 Thin-film filter-based wavelength division multiplexers/demultiplexers in an angle-multiplexed architecture

Sarun Sumriddetchkajorn, Kosom Chaitavon

Author Affiliations +

Proceedings Volume 6353, Optical Transmission, Switching, and Subsystems IV; 63530R (2006) https://doi.org/10.1117/12.687346
Event: Asia-Pacific Optical Communications, 2006, Gwangju, South Korea

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 λ_N 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.

Citation Download Citation

Sarun Sumriddetchkajorn and Kosom Chaitavon "Thin-film filter-based wavelength division multiplexers/demultiplexers in an angle-multiplexed architecture", Proc. SPIE 6353, Optical Transmission, Switching, and Subsystems IV, 63530R (21 September 2006); https://doi.org/10.1117/12.687346

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