Performance comparison of optical 8-ary differential phase-shift keying systems with different electrical decision schemes

被引：29
|
作者：
Yoon, H [1 ]
Lee, D [1 ]
Park, N [1 ]
机构：
[1] Seoul Natl Univ, Sch Elect Engn & Comp Sci, Opt Commun Syst Lab, Seoul 151744, South Korea
来源：
OPTICS EXPRESS | 2005年 / 13卷 / 02期
关键词：
D O I：
10.1364/OPEX.13.000371
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We examine the performance of optical 8-ary differential phase-shift keying transmission systems according to the type of receiver structure and modulation format. Compared with the approach based on a multilevel decision, we found that a bilevel receiver provides 3-dB gain in optical signal-to-noise ratio sensitivity and is more robust against chromatic dispersion for either nonreturn-to-zero or return-to-zero modulation. (C) 2005 Optical Society of America.
引用
收藏
页码：371 / 376
页数：6
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