{"title":"拉曼光纤放大器中的快速功率瞬变","authors":"M. Karásek","doi":"10.1109/ICTON.2002.1007870","DOIUrl":null,"url":null,"abstract":"We have investigated, both experimentally and theoretically, the effect of channel removal/addition on surviving channel power transients in distributed Raman fibre amplifier (RFA). Signals from two laser diodes were transmitted through counter-directionally pumped RFA consisting of 15.6 km of dispersion compensating fibre (DCF). Light of on of the laser diodes was square wave modulated at 500 Hz to simulate channel addition/removal. At the output of the RFA, the modulated channel was eliminated with an optical band-pass filter and power fluctuations of the c.w. channel were recorded with a high speed digital oscilloscope. Output power transients in RFA were studied theoretically using a large-signal numerical model that includes time variation effects and takes into account pump-to-pump and signal-to-signal interactions and generation of amplified spontaneous emission.","PeriodicalId":126085,"journal":{"name":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Fast power transients in Raman fibre amplifiers\",\"authors\":\"M. Karásek\",\"doi\":\"10.1109/ICTON.2002.1007870\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We have investigated, both experimentally and theoretically, the effect of channel removal/addition on surviving channel power transients in distributed Raman fibre amplifier (RFA). Signals from two laser diodes were transmitted through counter-directionally pumped RFA consisting of 15.6 km of dispersion compensating fibre (DCF). Light of on of the laser diodes was square wave modulated at 500 Hz to simulate channel addition/removal. At the output of the RFA, the modulated channel was eliminated with an optical band-pass filter and power fluctuations of the c.w. channel were recorded with a high speed digital oscilloscope. Output power transients in RFA were studied theoretically using a large-signal numerical model that includes time variation effects and takes into account pump-to-pump and signal-to-signal interactions and generation of amplified spontaneous emission.\",\"PeriodicalId\":126085,\"journal\":{\"name\":\"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)\",\"volume\":\"22 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-08-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICTON.2002.1007870\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICTON.2002.1007870","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
We have investigated, both experimentally and theoretically, the effect of channel removal/addition on surviving channel power transients in distributed Raman fibre amplifier (RFA). Signals from two laser diodes were transmitted through counter-directionally pumped RFA consisting of 15.6 km of dispersion compensating fibre (DCF). Light of on of the laser diodes was square wave modulated at 500 Hz to simulate channel addition/removal. At the output of the RFA, the modulated channel was eliminated with an optical band-pass filter and power fluctuations of the c.w. channel were recorded with a high speed digital oscilloscope. Output power transients in RFA were studied theoretically using a large-signal numerical model that includes time variation effects and takes into account pump-to-pump and signal-to-signal interactions and generation of amplified spontaneous emission.