Novel ultrafast all-optical nonreturn-to-zero to return-to-zero format converter based on Sagnac interferometric structure

被引：0
|
作者：
Chen, Zhixin [1 ]
机构：
[1] Cent Univ Finance & Econ, Sch Informat, Beijing 100081, Peoples R China
来源：
OPTICAL ENGINEERING | 2008年 / 47卷 / 07期
关键词：
optical communications; format conversion; semiconductor optical amplifiers; Sagnac interferometric structure; terahertz optical asymmetric demultiplexer;
D O I：
10.1117/1.2957044
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Based on the Sagnac interferometric structure, a simple novel ultrafast scheme of an all-optical nonreturn-to-zero (NRZ) to return-tozero (RZ) is proposed. The operations of this scheme at 40 Gbit/s 27-1 PRBS sequences are simulated correctly with an output extinction ratio of more than 19.1 dB. Through a built theoretical model and numerical analysis, the operating characteristics of the scheme are illustrated. Furthermore, the carrier recovery time of the semiconductor optical amplifier (SOA) is no longer a crucial parameter to restrict the operation speed of this scheme. This scheme is potentially capable of all-optical NRZ-to-RZ format converter operation speeds to 80 Gbit/s thus far. (c) 2008 Society of Photo-Optical Instrumentation Engineers.
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页数：5
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