1×5倍Brillouin频移的可调MWBEFL的实验研究  

Experimental research on tunable multi-wavelength brillouin erbium-dopedfiber laser with 1×5 brillouin frequency spacing

作　　者：李曾阳 周雪芳[1] 毕美华[1] 杨国伟[1] 胡淼[1] 王天枢[2] LI Zeng-yang;ZHOU Xue-fang;BI Mei-hua;YANG Guowei;HU Miao;WANG Tian-shu(School of Communication Engineering.Hangzhou Dianzi University,Hangzhou 310018,China;National and Local Joint Engineering Research Center of Space Optoelectronics Technology,Changchun University of Science and Technology ,Changchun 130022,China)

机构地区：[1]杭州电子科技大学通信工程学院,浙江杭州310018 [2]长春理工大学空间光电技术国家有地方联合工程研究中心,空间光电技术研究所,吉林长春130022

出　　处：《光电子．激光》2019年第6期599-604,共6页Journal of Optoelectronics·Laser

基　　金：浙江省自然科学基金(LGG19F050001)资助项目

摘　　要：可调谐性作为多波长光纤激光器的重要指标之一,可以用来评判激光器性能。为了增强多波长光纤激光器的可调谐性,以适应密集波分复用系统与微波光子学的需求,基于布里渊效应,通过三个布里渊频移腔(BFS,包括有两个双倍频腔与一个单倍频腔),以及三个掺铒光纤放大器(EDFA)联合,设计了一种1×5倍Brillouin频移的可调多波长布里渊掺铒光纤激光器(MWBEF L)。EDFA作为受激布里渊散射(SBS)的开关控制不同倍频间隔的多波长产生,通过适当地调节不同EDFA的输出功率在实验中得到了单、双、三、四、五倍Brillouin频移的多波长输出,波长间隔分别为0.086 nm、0.172 nm、0.258 nm、0.344 nm、 0.430 nm,对应斯托克斯光(BS)阶数分别为18、7、5、2、1,并且输出激光在30 min的测量时间内表现出很好的功率稳定性,最大的功率波动分别为0.867 dB,0. 594 dB,0.438 dB,0.814 dB, 0.389 dB。Tunability is one of the important indicators of multi-wavelength fib er lasers and can be used to evaluate laser performance.In order to enhance the tunability of multi-wavelen gth fiber lasers to meet demand for dense wavelength division multiplexing systems and microwave photonics,based on the Brillouin effect,a multi-wavelength Brillouin erbium-doped fiber laser (MWBEFL) with 1×5tunabl e Brillouin frequency spacing is designed by combining three Brillouin frequency shift (BFS,Including two double Brillouin frequency shift cavity and one single Brillouin frequency shift cavity) cavities and three erbium-dope d fiber amplifiers (EDFA).EDFA is used as a switch for stimulated Brillouin scattering (SBS) to dominate multi-wa velength generation with different frequency spacing.By properly adjusting the output power of the different EDFAs .The multi-wavelength outputs with the single,double,triple,quadruple,and quintuple Brillouin frequency sp acing are obtained in the experiment, and the wavelength spacing are 0.086nm,0.172nm,0.258nm,0.344nm,and 0.430nm,respectively,the corresponding number of Stokes light (BS) is 18,7,5,2,1,respectively,and t he output laser shows good power stability during the measurement time of 30mins,the maximum power fluctuations are 0.867dB,0.594dB, 0.438dB,0.814dB,0.389dB.

关 键 词：受激布里渊散射 波长间隔可调谐 多倍频 多波长光纤激光器 

分 类 号：TN253[电子电信—物理电子学]