A dual-wavelength erbium-doped fiber laser with widely tunable wavelength spacing  

作　　者：张卫华 童峥嵘 曹晔 

机构地区：[1]Key Laboratory of Film Electronics and Communication Devices, School of Electronic Information Engineering, Tianjin University of Technology

出　　处：《Optoelectronics Letters》2014年第2期100-102,共3页光电子快报（英文版）

基　　金：supported by the Tianjin Natural Science Foundation(Nos.13JCQNJC01800 and 11JCYBJC00100)

摘　　要：A stable dual-wavelength erbium-doped fiber laser(EDFL) with tunable wavelength spacing and equalized output power is proposed and experimentally demonstrated. The fiber laser uses two fiber Fabry-Perot tunable filters(FFPTFs) as the wavelength filter. The main cavity is divided into two sub-cavities with imbalance cavity losses through a 30/70 optical coupler. The tunable wavelength spacing can be achieved by changing the center wavelength of the filters and the equalized dual-wavelength output power can be achieved by properly controlling the variable optical attenuator(VOA) inserted in the lower-loss cavity.A stable dual-wavelength erbium-doped fiber laser （EDFL） with tunable wavelength spacing and equalized output power is proposed and experimentally demonstrated. The fiber laser uses two fiber Fabry-Perot tunable filters （FFP- TFs） as the wavelength filter. The main cavity is divided into two sub-cavities with imbalance cavity losses through a 30/70 optical coupler. The tunable wavelength spacing can be achieved by changing the center wavelength of the filters and the equalized dual-wavelength output power can be achieved by properly controlling the variable optical attenuator （VOA） inserted in the lower-loss cavity.

关 键 词：掺铒光纤激光器 波长间隔 双波长 可调谐 波长滤波器 输出功率 可调滤波器 光学衰减器 

分 类 号：TN248[电子电信—物理电子学]