A. Willner, S.H. Huang, X. Y. Zou, S. Hwang, D.A. Smith, Z. Bao
{"title":"利用声光可调滤波器实现可重构WDM网络中的动态信道均衡","authors":"A. Willner, S.H. Huang, X. Y. Zou, S. Hwang, D.A. Smith, Z. Bao","doi":"10.1109/LEOS.1996.571611","DOIUrl":null,"url":null,"abstract":"One of the most promising technologies in optical networks is the use of wavelength-division multiplexing (WDM), in which many different-wavelength channels are simultaneously transmitted along the optical fiber. One key underlying technology which has enabled these systems is the introduction of the erbium-doped fiber amplifier EDFA. A glaring disadvantage of the EDFA is that the gain is not uniform with wavelength, causing a significant power and signal-to-noise ratio (SNR) differential among many channels. We will discuss our demonstrations of dynamically equalizing three 2.5 Gbit/s WDM channels in which the channel power differential is reduced from 20 dB to only 1 dB over a distance of 2,500 km by placing an acousto optical filter in an EDFA.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Dynamic channel equalization in reconfigurable WDM networks using acousto-optic tunable filters\",\"authors\":\"A. Willner, S.H. Huang, X. Y. Zou, S. Hwang, D.A. Smith, Z. Bao\",\"doi\":\"10.1109/LEOS.1996.571611\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"One of the most promising technologies in optical networks is the use of wavelength-division multiplexing (WDM), in which many different-wavelength channels are simultaneously transmitted along the optical fiber. One key underlying technology which has enabled these systems is the introduction of the erbium-doped fiber amplifier EDFA. A glaring disadvantage of the EDFA is that the gain is not uniform with wavelength, causing a significant power and signal-to-noise ratio (SNR) differential among many channels. We will discuss our demonstrations of dynamically equalizing three 2.5 Gbit/s WDM channels in which the channel power differential is reduced from 20 dB to only 1 dB over a distance of 2,500 km by placing an acousto optical filter in an EDFA.\",\"PeriodicalId\":332726,\"journal\":{\"name\":\"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-11-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/LEOS.1996.571611\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LEOS.1996.571611","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Dynamic channel equalization in reconfigurable WDM networks using acousto-optic tunable filters
One of the most promising technologies in optical networks is the use of wavelength-division multiplexing (WDM), in which many different-wavelength channels are simultaneously transmitted along the optical fiber. One key underlying technology which has enabled these systems is the introduction of the erbium-doped fiber amplifier EDFA. A glaring disadvantage of the EDFA is that the gain is not uniform with wavelength, causing a significant power and signal-to-noise ratio (SNR) differential among many channels. We will discuss our demonstrations of dynamically equalizing three 2.5 Gbit/s WDM channels in which the channel power differential is reduced from 20 dB to only 1 dB over a distance of 2,500 km by placing an acousto optical filter in an EDFA.