Monolithic demodulator for 40-gb/s DQPSK using a star coupler
- 6 February 2006
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 24 (1) , 171-174
- https://doi.org/10.1109/jlt.2005.860476
Abstract
A novel device that demodulates both quadratures of the optical differential quadrature phase-shift keying (DQPSK) format in a single interferometer by using a 4 /spl times/ 4 star coupler was demonstrated. Simultaneous measurements of both DQPSK quadratures at 42.7 Gb/s are also presented.Keywords
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