1 October 2011 Novel high-speed carrier-suppressed return-to-zero frequency shift keying signal generation and transmission
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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.
©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)
He Zhou, Fanjian Hu, Nan Chi, and Dexiu Huang "Novel high-speed carrier-suppressed return-to-zero frequency shift keying signal generation and transmission," Optical Engineering 50(10), 105005 (1 October 2011). https://doi.org/10.1117/1.3638119
Published: 1 October 2011
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KEYWORDS
Frequency shift keying

Amplitude shift keying

Modulation

Single mode fibers

Signal generators

Nonlinear optics

Phase modulation

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