All-optical amplitude-shift keying and differential phase-shift keying to differential phase amplitude-shift keying format combination in highly nonlinear fiber

被引:0
|
作者
Wu, Lin [1 ]
Zhang, Dechao [1 ]
Zhang, Fan [1 ]
Chen, Zhangyuan [1 ]
Xu, Anshi [1 ]
机构
[1] Peking Univ, State Key Lab Adv Opt Commun Syst & Networks, Dept Elect, Beijing 100871, Peoples R China
基金
中国国家自然科学基金;
关键词
CONVERSION; DQPSK; DPSK; GENERATION; SIGNALS; OOK;
D O I
10.3788/COL20090707.0564
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose an all-optical modulation formats combination scheme that merges an amplitude-shift keying (ASK) signal and a differential phase-shift keying (DPSK) signal into a single differential phase amplitude-shift keying (DPASK) signal based on parametric amplification in a highly nonlinear fiber. By optimizing the power of the ASK channel, formats combination of ASK and DPSK to DPASK signal is successfully demonstrated by computational simulation. The demodulation process of the generated DPASK pulses is investigated and the relationship between optical signal-to-noise ratio (OSNR) penalty and the input ASK power is presented. The proposed scheme may be used for increasing spectral efficiency and all-optical logic device.
引用
收藏
页码:564 / 567
页数:4
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