8字形腔波长可调谐锁模脉冲光纤激光器  

Wavelength Tunable Mode-locked Pulse Fiber Laser Based on Figure-of-Eight Cavity

作　　者：郭雄英[1] 杨玲珍[1] 贺虎成[1] 曹玲[1] 王云才[1] 

机构地区：[1]太原理工大学理学院物理系

出　　处：《光子学报》2008年第2期212-215,共4页Acta Photonica Sinica

基　　金：国家自然科学基金(60577019);山西省留学回国人员科研基金(2004-17)资助

摘　　要：采用非线性光纤环形镜加脉冲锁模技术及可调谐光纤光栅滤波器,对8字形腔被动锁模掺铒光纤激光器进行了波长可调谐输出的实验研究.在EDFA抽运光功率一定的情况下,通过调节偏振控制器和可调谐光纤光栅滤波器,获得了光谱稳定、重复频率1.1MHz、输出功率起伏小于0.8dBm、中心波长在1548～1570nm内连续可调的短脉冲输出.该激光器可实现自启动锁模,且长时间稳定工作无需任何调整.Experimental study of the wavelength tunable passively mode-locked Er-doped fiber laser based on figure-of-eight cavity is presented. Wavelength tunable and stable mode-locked pulses are obtained by utilizing the additive pulse mode-locking technique based on nonlinear optical loop mirror associated with tunable fiber grating filter. On the condition that the pump power of EDFAs is fixed, by adjusting the tunable filter and orientation of polarization controllers, the mode-locked pulses at 1.1 MHz repetition rate with average output power fluctuation less than 0.8 dBm, and tunable range from 1 548 nm to 1 570 nm are obtained. The self-starting of the mode-locked fiber laser can be obtained, and the mode-locked operation can be hardly influenced by the environment disturbance.

关 键 词：激光技术 光纤激光器 8字形腔 非线性光纤环形镜 波长调谐 

分 类 号：TN248[电子电信—物理电子学]