2.1μm可调谐多波长掺钬光纤激光器  

Tunable multi-wavelength holmium-doped fiber laser operating at 2.1μm

作　　者：于秀明 丁云飞 马万卓 赵得胜 刘润民 王天枢[3] YU Xiuming;DING Yunfei;MA Wanzhuo;ZHAO Desheng;LIURunmin;WANG Tianshu(School of Electronic Engineering, College of Optoelectronic Information, Changchun University of Science and Technology, Changchun 130114, China;School ofInformation Engineering, College of Optoelectronic Information, Changchun University of Science andTechnology, Changchun 130114, China;National and Local Joint Engineering Research Center of Space Optoelectronics Technology,Changchun University of Science and Technology, Changchun 130022,China)

机构地区：[1]长春理工大学光电信息学院电子工程分院,吉林长春130114 [2]长春理工大学光电信息学院,吉林长春130114 [3]长春理工大学空间光电技术国家地方联合工程研究中心,吉林长春130022

出　　处：《应用光学》2019年第3期500-504,共5页Journal of Applied Optics

基　　金：国家自然科学基金(91338116)

摘　　要：为了实现2.1μm波段光纤激光器输出多波长激光,设计了一种基于光纤Sagnac干涉仪的可调谐多波长掺钬光纤激光器。采用1.9μm波段掺铥光纤激光器泵浦一段长3 m的掺钬石英光纤,获得2.1μm波段的光放大;环形腔中,由保偏光纤和偏振控制器构成的光纤Sagnac干涉仪,实现2.1μm波段周期滤波,获得了2.1μm波段多波长激光,输出功率1 mW～15 mW可调谐,最多可观测到6个波长的激光输出。通过调节环形腔内偏振控制器,能够实现2.1μm波段1～6个波长的调谐。In order to generate the multi-wavelength fiber laser at 2.1 μm band, a tunable multi-wavelength Ho 3+-doped ring fiber laser based on all-fiber Sagnac interferometer was designed. A 3 m long Ho 3+-doped silica fiber was pumped by a Tm 3+-doped fiber laser, and then the spontaneous radiation at 2.1 μm band was amplified. In the annular cavity,the Sagnac fiber interferometer consisted of an 8 m long polarization maintain fiber (PMF) and a polarization controller (PC), and the output wavelength at 2.1 μm waveband can be period tuned by the Sagnac interferometer. In experiment, a multi-wavelength laser at 2.1 μm waveband can be got,the output power can be tuned from1mW to 15 mW, and up to 6 wavelengths of laser output can be observed. By adjusting the PC in annular cavity, the output tunable wavelength number can be realized from1to 6 at 2.1 μm band.

关 键 词：光纤激光器 掺钬光纤(HDF) 掺铥光纤激光器 SAGNAC干涉仪 多波长 

分 类 号：TN248[电子电信—物理电子学]