Analysis of smooth phase modulation formats compared with conventional QPSK and BPSK using coherent detection
Chinese Optics Letters, Vol. 8, Issue 9, pp. 856-858 (2010)
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Abstract
Novel optical offset quadrature phase shift keying (OQPSK) and improved minimum-shift keying (MSK) modulation schemes to smooth optical phase hopping for high speed fiber optics transmission are proposed. Simulations have been done among the MSK, OQPSK, quadrature phase shift keying (QPSK), and binary phase-shift keying (BPSK) modulation formats at 40 Gb/s over 100-km transmission link using coherent detection. Simulation results present good performances to elevate chromatic dispersion tolerance and reduce the influence of nonlinear effects by adopting the smooth phase modulation formats. Inter-symbol interference decreases for the fast side-lobe property and tight spectrum as a result of avoding the ? phase shift and reducing envelop fluctuation.
© 2010 Chinese Optics Letters
OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4080) Fiber optics and optical communications : Modulation
(060.5060) Fiber optics and optical communications : Phase modulation
Citation
Bo Huang, Nan Chi, Yufeng Shao, Junwen Zhang, Jiangbo Zhu, Wei Li, and Wen Liu, "Analysis of smooth phase modulation formats compared with conventional QPSK and BPSK using coherent detection," Chin. Opt. Lett. 8, 856-858 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-9-856
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