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Optical Engineering

Novel high-speed carrier-suppressed return-to-zero frequency shift keying signal generation and transmission
Author(s): He Zhou; Fanjian Hu; Nan Chi; Dexiu Huang
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Paper Abstract

A novel carrier-suppressed return-to-zero frequency shift keying (CSRZFSK) transmitter that can operate at 40 Gb/s and above is proposed for the first time. The transmission characteristics of the CSRZFSK signal at 40 Gb/s compared with differential quadrature phase shift keying (DQPSK) signal and amplitude shift keying (ASK) signal are investigated under different dispersion management. Simulation results show that CSRZFSK has the best nonlinear tolerance and longest transmission distance when compared with DQPSK and ASK signals. A 40 Gb/s CSRZFSK signal gives only a 0.1 dB sensitivity penalty while DQPSK and ASK give 0.6 and 0.7 dB, respectively.

Paper Details

Date Published: 1 October 2011
PDF: 9 pages
Opt. Eng. 50(10) 105005 doi: 10.1117/1.3638119
Published in: Optical Engineering Volume 50, Issue 10
Show Author Affiliations
He Zhou, Huazhong Univ. of Science and Technology (China)
Fanjian Hu, Wuhan Univ. (China)
Nan Chi, Fudan Univ. (China)
Dexiu Huang, Huazhong Univ. of Science and Technology (China)


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