Tunable and switchable dual-wavelength erbium-doped fiber laser based on in-line tapered fiber filters  

作　　者：童峥嵘 杨贺 曹晔 

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4期264-267,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)

摘　　要：A tunable and switchable dual-wavelength erbium-doped fiber laser(EDFL) based on all-fiber single-mode tapered fiber structure has been demonstrated. By adjusting the variable optical attenuator(VOA), the laser can be switched between the single-wavelength mode and the dual-wavelength mode. When the temperature applied on the tapered fiber structure varies, the pass-band varies and the wavelength of the output laser shifts correspondingly. When the temperature changes from 30 °C to 180 °C, the central wavelength of the EDFL generated by branch A shifts from 1 550.7 nm to 1 560.3 nm, while that of branch B shifts from 1 530.8 nm to 1 540.4 nm, indicating the wavelength interval is tunable. These advantages enable this laser to be a potential candidate for high-capacity wavelength division multiplexing systems and mechanical sensors.

关 键 词：Bandpass filters Electromagnetic wave attenuation ERBIUM Fiber lasers Multiplexing equipment Optical waveguides Wavelength division multiplexing 

分 类 号：TN248[电子电信—物理电子学]