Format Conversion of Optical Multilevel Signals Using FWM-Based Optical Phase Erasure
Journal of Lightwave Technology, Vol. 29, Issue 16, pp. 2460-2466 (2011)
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Abstract
An optical format conversion scheme of multilevel phase-shift keying (M-ary PSK) signals using the four-wave mixing based optical phase erasure is discussed in this paper. The conversion from differential quadrature phase-shift keying (DQPSK) to differential phase shift keying at 10 and 160 Gbaud, and the conversion from differential eight-ary phase-shift keying to DQPSK at 40 Gbaud have been experimentally demonstrated. The proposed scheme could be used as a phase erasure, in which a redundant tributary of the M-ary PSK signal is removed, or as an “updater” where the unwanted phase pattern is replaced with the new pattern.
© 2011 IEEE
Citation
Guo-Wei Lu, Ekawit Tipsuwannakul, Tetsuya Miyazaki, Carl Lundström, Magnus Karlsson, and Peter A. Andrekson, "Format Conversion of Optical Multilevel Signals Using FWM-Based
Optical Phase Erasure," J. Lightwave Technol. 29, 2460-2466 (2011)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-29-16-2460
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