Influence of Group-Velocity Dispersion on Multilevel Phase-Preserving Amplitude Regeneration in a Nonlinear Amplifying Loop Mirror

被引：0
|
作者：
Roethlingshoefer, Tobias [1 ,2 ,4 ]
Toth, Daniel [1 ]
Onishehukov, Georgy [1 ,4 ]
Sehmauss, Bernhard [3 ,4 ]
Leuchs, Gerd [1 ,2 ,4 ]
机构：
[1] Max Planck Inst Sci Light, Guenther Scharowsky Str 1-B24, D-91058 Erlangen, Germany
[2] Univ Erlangen Nurnberg, Inst Opt Informat & Photon, D-91058 Erlangen, Germany
[3] Univ Erlangen Nurnberg, Chair Microwave Engn, D-91058 Erlangen, Germany
[4] SAOT, Erlangen Grad Sch Adv Opt Technol, D-91052 Erlangen, Germany
来源：
2012 14TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON 2012) | 2012年
关键词：
all-optical signal processing; regeneration; quadrature amplitude modulation; NALM; NOLM; SYSTEMS; SIGNAL; DPSK;
D O I：
暂无
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Numerical simulations have shown a significant influence of group-velocity dispersion (GVD) of the highly nonlinear fiber on the transfer characteristics of a nonlinear amplifying loop mirror (NALM). The effect is especially strong for the anomalous dispersion regime where an interaction of GVD and self-phase modulation (SPM) leads to formation of high-order solitons. The irregularities of the resulting NALM transfer functions can be used for phase-preserving amplitude regeneration of several, irregular-spaced amplitude states for multi-level modulation formats. The regeneration performance was estimated for a 16QAM signal with three amplitude states where a reduction of amplitude noise without significant signal phase distortions has been observed.
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页数：4
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