Tunable multi-wavelength fiber ring laser based on a Hi-Bi fiber loop mirror  

作　　者：王肇颖 胡智勇 葛春风 姜骁骏 包焕民 贾东方 李世忱 

机构地区：[1]CollegeofPrecisionInstrumentandOptoelectronicsEngineering,TianjinUniversity,Tianjin300072KeyLaboratoryofOptoelectronicsInformationandTechnicalScience(TianjinUniversity),MinistryofEducation,Tianjin300072

出　　处：《Chinese Optics Letters》2004年第9期531-533,共3页中国光学快报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(No. 69877012);Tianjin Science and Technology Development Foundation (No. 033800411);Youth Teacher Foundation of Tianjin University.

摘　　要：A novel tunable multi-wavelength fiber ring laser based on semiconductor optical amplifier (SOA) is proposed by using a high-birefringence (Hi-Bi) fiber loop mirror (FLM) as wavelength filter. With this configuration, the wavelength spacing of this laser can be varied by using the different lengths of Hi-Bi fiber. 8 wavelengths spacing on 450 GHz are experimentally obtained with more than 25-dB signal-to-noise ratio (SNR) for each channel using 1.28-m Hi-Bi fiber in Hi-Bi FLM. The output power variation between different channels is measured to be less than 5.9 dB. The linewidth of each channel is compressed from 0.347 to 0.186 nm by 1.5-m unpumped erbium-doped fiber (EDF). Meanwhile, 17 wavelengths spacing on ITU-gird (100 GHz) are also obtained with 5.9-m Hi-Bi fiber in Hi-Bi FLM. All these channels can be tuned together over 0.4 nm.A novel tunable multi-wavelength fiber ring laser based on semiconductor optical amplifier (SOA) is proposed by using a high-birefringence (Hi-Bi) fiber loop mirror (FLM) as wavelength filter. With this configuration, the wavelength spacing of this laser can be varied by using the different lengths of Hi-Bi fiber. 8 wavelengths spacing on 450 GHz are experimentally obtained with more than 25-dB signal-to-noise ratio (SNR) for each channel using 1.28-m Hi-Bi fiber in Hi-Bi FLM. The output power variation between different channels is measured to be less than 5.9 dB. The linewidth of each channel is compressed from 0.347 to 0.186 nm by 1.5-m unpumped erbium-doped fiber (EDF). Meanwhile, 17 wavelengths spacing on ITU-gird (100 GHz) are also obtained with 5.9-m Hi-Bi fiber in Hi-Bi FLM. All these channels can be tuned together over 0.4 nm.

关 键 词：BIREFRINGENCE ERBIUM Optical fibers Ring lasers Signal to noise ratio Wavelength division multiplexing 

分 类 号：TN24[电子电信—物理电子学]