NDLI: Athermal optical demodulator for OC-768 DPSK and RZ-DPSK signals

Content Provider	IEEE Xplore Digital Library
Author	Xiang Liu Gnauck, A.H. Xing Wei Hsieh, J. Ai, C. Chien, V.
Copyright Year	1989
Abstract	We report an athermal optical delay-interferometer capable of demodulating any OC-768 differential phase-shift keying (DPSK) signal on the ITU 50-GHz grid over the C+L-band. The demodulator is based on a free-space Michelson interferometer. Experiments are performed with a 42.7-Gb/s nonreturn-to-zero DPSK signal and a 42.7-Gb/s return-to-zero DPSK signal with 67% duty cycle. Receiver sensitivity (at a bit error rate of 10/sup -9/) of better than /spl sim/35.5 dBm is achieved for both signals. Negligible temperature-induced penalty is observed over an operational temperature range between 0/spl deg/C and 70/spl deg/C. The penalty associated with laser frequency offset (from the ITU grid) is also investigated.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	2610
Ending Page	2612
Page Count	3
File Size	474220
File Format	PDF
ISSN	10411135
Volume Number	17
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Demodulation Differential quadrature phase shift keying Optical interferometry Optical receivers Optical sensors Delay Differential phase shift keying Phase shifting interferometry Bit error rate Temperature distribution optical delay interferometer (DI) Differential phase-shift keying (DPSK) Michelson interferometer
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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