正交偏振的双波长掺镱双包层光纤激光器  

Dual-Wavelength Orthogonally Polarized Yb^(3+)-Doped Double Clad Fiber Laser

作　　者：冯德军[1] 黄文育[1] 刘冠秀 张茂森[1] 

机构地区：[1]山东大学信息科学与工程学院,山东济南250100

出　　处：《光学学报》2013年第12期144-147,共4页Acta Optica Sinica

基　　金：国家自然科学基金(61377043);山东省自然科学基金(ZR2011FM013);中国电子工业集团第46研究所创新基金项目(CJ20130303)

摘　　要：利用保偏光纤布拉格光栅(PM-FBG)和高反射率的双色镜构成激光谐振腔,以单模保偏双包层掺镱光纤为增益介质,实现了输出功率为1W的稳定的双波长激光输出,该激光信噪比为48dB,斜率效率为34%。利用拱梁调谐方法对输出光栅进行了拉伸和压缩调谐实验,实现的激光调谐范围为8nm,且调谐过程中双波长的波长间隔变化很小。以格兰-汤姆孙棱镜验证了该激光的偏振特性。A stable continuous-wave dual-wavelength Yb3＋-doped fiber laser is demonstrated, in which the resonance cavity is composed of a fiber Bragg grating fabricated in a polarization maintaining fiber （PM-FBG） and a high reflectivity dichromatic mirror. The laser achieves output power of 1.0 W, signal to noise radio （SNR） of 48 dB, slope efficiency of 34%, as well as a very narrow linewidth of 0.2 nm. The dual-wavelength laser′s tuning range is 8 nm by stretching and compressing the PM-FBG which is glued on an arch elastic beam. The polarization characteristics of the laser are then verified by measuring the laser power transmitted through a Glan-Thomson polarizer.

关 键 词：激光器 光纤激光器 偏振 掺镱光纤 

分 类 号：TN253[电子电信—物理电子学]