A widely tunable fiber ring laser with closed loop control based on high-precision stepper motor  

作　　者：王丽丽 忻向军 朱林伟 

机构地区：[1]School of Information and Electrical Engineering, Ludong University, Yantai 264025, China [2]School of Electronic Engineering, Belting University of Posts &Telecommunication, Beijing 100876, China [3]School of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China

出　　处：《Optoelectronics Letters》2016年第3期169-172,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61205014);the Natural Science Foundation of Shandong Province(No.ZR2012FL21);the Science&Technology Development Program of Shandong Province(No.2011YD01078);the Project of Shandong Provincial Higher Educational Science and Technology Program of China(No.J12LJ02);the Precision Instruments Upgrading Project Fund of Shandong Province(No.2012SJGZ06);the Doctoral Foundation of Shandong Province(No.BS2012DX006)

摘　　要：A tunable single-longitudinal mode erbium-doped fiber ring laser based on stepper motor and closed loop control is proposed and demonstrated. The system consists of an erbium-doped fiber （EDF）, a tunable fiber Bragg grating （FBG） filter and a wavelength detector. The characteristics of output laser, such as output power, power stability and 3-dB linewidth, are investigated in the operation range of I 531-1 569 nm. The repeated experimental results of the fiber laser show that the 3-dB linewidth is less than 17 ps, the side-mode suppression ratio （SMSR） is up to 60 dB, the outout Dower is up to 1.37 dBm. and the Dower variation is less than 0.61 dR

关 键 词：闭环控制 步进电机 光纤环形激光器 高精度 掺铒光纤激光器 光纤布拉格光栅 输出功率 功率稳定性 

分 类 号：TN248[电子电信—物理电子学]