{"title":"Wavelength shift-free all-optical 2R regenerator based on four-wave mixing","authors":"E. Fagotto, M. Abbade","doi":"10.1109/IMOC.2011.6169306","DOIUrl":null,"url":null,"abstract":"In this work we numerically investigated an all-optical 2R (reamplification and reshaping) regenerator based on four-wave mixing and implemented with two stages of highly nonlinear dispersion-shifted fiber. The two-stage setup, aside from providing an almost ideal transfer function, allows for the regenerated signal to maintain its original wavelength (wavelength shift-free). We tested the device operation by applying to its input an optical signal affected by accumulative amplified spontaneous emission noise from a cascade of erbium-doped fiber amplifiers. To assess the regenerator performance, we calculated and compared the Q-factor and extinction rate of the input signal with the corresponding values for the output signal. Our results show, due to the action of the proposed two-stage wavelength shift-free regenerator, the input signal Q-factor improves by up to 70% and its extinction ratio by up to 3 dB whilst maintaining the input signal carrier frequency.","PeriodicalId":179351,"journal":{"name":"2011 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC 2011)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC 2011)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IMOC.2011.6169306","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
In this work we numerically investigated an all-optical 2R (reamplification and reshaping) regenerator based on four-wave mixing and implemented with two stages of highly nonlinear dispersion-shifted fiber. The two-stage setup, aside from providing an almost ideal transfer function, allows for the regenerated signal to maintain its original wavelength (wavelength shift-free). We tested the device operation by applying to its input an optical signal affected by accumulative amplified spontaneous emission noise from a cascade of erbium-doped fiber amplifiers. To assess the regenerator performance, we calculated and compared the Q-factor and extinction rate of the input signal with the corresponding values for the output signal. Our results show, due to the action of the proposed two-stage wavelength shift-free regenerator, the input signal Q-factor improves by up to 70% and its extinction ratio by up to 3 dB whilst maintaining the input signal carrier frequency.