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Monolithic demodulator for 40-gb/s DQPSK using a star coupler

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9 Author(s)
Doerr, C.R. ; Lucent Technol. Bell Labs., Holmdel, NJ, USA ; Gill, D.M. ; Gnauck, A.H. ; Buhl, L.L.
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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 × 4 star coupler was demonstrated. Simultaneous measurements of both DQPSK quadratures at 42.7 Gb/s are also presented.

Published in:

Lightwave Technology, Journal of  (Volume:24 ,  Issue: 1 )

Date of Publication:

Jan. 2006

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