Tunable fiber laser based on a cascaded structure consisting of in-line MZI and traditional MZI  

作　　者：童峥嵘 杨贺 张卫华 

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

出　　处：《Optoelectronics Letters》2016年第6期437-440,共4页光电子快报（英文版）

基　　金：supported by the National High Technology Research and Development Program of China(No.2013AA014201);the Tianjin Youth Science Foundation(No.13JCQNJC01800);the State Key Laboratory on Integrated Optoelectronics of China(No.IOSKL2015KF06)

摘　　要：A tunable erbium-doped fiber（EDF） laser with a cascaded structure consisting of in-line Mach-Zehnder interferometer（MZI） and traditional MZI is proposed. The transmission spectrum of the in-line MZI is modulated by the traditional MZI, which determines the period of the cascaded structure, while the in-line MZI＇s transmission spectrum is the outer envelope curve of the cascaded structure＇s transmission spectrum. A stable single-wavelength lasing operation is obtained at 1 527.14 nm. The linewidth is less than 0.07 nm with a side-mode suppression ratio（SMSR） over 48 d B. Fixing the in-line MZI structure on a furnace, when the temperature changes from 30 ℃ to 230 ℃, the central wavelength can be tuned within the range of 12.4 nm.

关 键 词：cascaded lasing tunable interferometer suppression outer modulated tuned cladding hollow 

分 类 号：TN248[电子电信—物理电子学]