Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 20, Issue 13-16, Pages 1166-1168Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2008.924660
Keywords
demodulator; differential phase-shift keying; interferometer; optical communication; optical receiver; phase modulation
Funding
- Cisco Systems URP
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We demonstrate an alternative differential quadrature phase-shift keying (DQPSK) receiver offering reduced complexity through sharing of hardware in the I/Q demodulation paths. Demodulation of 43-Gb/s return-to-zero DQPSK is demonstrated without penalty relative to a traditional DQPSK receiver. Rate tuning is demonstrated using a tunable birefringent element.
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