基于双光纤光栅法布里-珀罗滤波器的可调谐单频光纤激光器  

Tunable Single Frequency Fiber Laser Based on two FBG-FP Filters

作　　者：杜勇[1] 刘建军[2] 

机构地区：[1]集美大学信息工程学院,福建厦门361021 [2]九江学院电子信息学院,江西九江332005

出　　处：《邵阳学院学报（自然科学版）》2015年第4期24-30,共7页Journal of Shaoyang University：Natural Science Edition

基　　金：福建省自然科学基金计划资助项目(2013J01246)

摘　　要：基于游标原理,利用一对光纤布喇格光栅法布里-珀罗滤波器(FBG-FP)作为模式选择器件,设计了一种新颖的环形腔光纤激光器.从理论和实验上研究了该激光器的特性.通过对可调谐FBG-FP应力调谐,在1550.840 nm到1551.762 nm范围内,以96 pm为平均间距,获得了8个由固定FBG-FP的透射谱所确定的窄线宽稳定激光输出.实验上每隔1分钟用光谱分析仪(OSA)对输出光波长自动扫描,记录的输出光波长漂移在数皮米范围内,且功率的波动小于0.1 d B.这种可调谐的单频光纤激光器在光纤通信和光纤传感方面有潜在的应用价值.Using a pair of Fiber Bragg grating Fabry-Pérot filters( FBG-FP) as its wavelength-selective components based on the vernier effect,a novel single frequency fiber ring laser is proposed. We studied the characteristics of this sort of tunable fiber laser both theoretically and experimentally,and obtained 8 discretely tunable lasing wavelengths from 1550. 840 nm to 1551. 762 nm with an average 96 pm spacing,by pulling the tunable FBG-FP. The output spectrum of the laser is specified by the transmission maximum of the fixed FBG-FP and recorded automatically by the optical spectrum analyzer( OSA) at an interval of 1 minute. It is found that the output wavelength drift within a few picometers and the fluctuation of the output power is less than 0. 1 d B. This sort of fiber ring laser maybe has potential applications in optical communications and sensors.

关 键 词：可调谐光纤激光器 法布里-珀罗滤波器 光纤布喇格光栅 游标原理 窄线宽 

分 类 号：TN248.1[电子电信—物理电子学]