具有32GHz频差的掺Yb^(3+)双频DBR光纤激光器  

Dual-frequency Yb^(3+)-doped DBR fiber laser with 32GHz frequency difference

作　　者：侯玉斌[1] 张倩 齐恕贤 冯宪 王璞[1] Hou Yubin;Zhang Qian;Qi Shuxian;Feng Xian;Wang Pu(Institute of Laser Engineering,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学激光工程研究院,北京100124

出　　处：《红外与激光工程》2018年第10期108-111,共4页Infrared and Laser Engineering

基　　金：国家自然科学基金(61527822;61235010;61378088;61307054)

摘　　要：基于自制的双波长低反射率光纤光栅(FBG)作为分布式布拉格反射激光器(DBR)的输出端,实现了掺Yb^(3+)双频DBR光纤激光器。该FBG的双波长间隔为0.12 nm,对应的频差为32 GHz。双频光纤激光器输出的两个波长分别为1 063.09 nm和1 063.21 nm,光谱信噪比大于60 d B。每一个波长只包含一个纵模。两个纵模的拍频信号为32.014 GHz,频谱信噪比大于35 d B。得益于光纤激光器本身具有结构紧凑,抗干扰能力强等特点,该型激光器有望作为高品质,小型化的微波信号源,用于微波传感和通信等领域。A dual-frequency Yb3+-doped distributed Bragg reflection(DBR)fiber laser was demonstrated,which used a home-made dual-wavelength low reflectivity FBG as the output port of the DBR fiber laser.The wavelength spacing of the FBG was about 0.12 nm,corresponding to 32 GHz frequency difference.The dual-wavelength of the laser output was 1 063.09 nm and 1 063.21 nm,respectively.The spectral signal noise ratio was more than 60 dB.Each of the wavelengths included only one longitudinal mode.The beat frequency of the dual-frequency was 32.014 GHz.The signal-noise ratio of the frequency spectrum was more than 35 dB.Benefitted from the compact structure and the strong anti-interference capability of the fiber laser,the dual-frequency fiber laser is promising as the candidate of high-quality microwave signal generator for the applications such as microwave sensing and communications.

关 键 词：光纤激光器 掺镱 双频 微波光子学 

分 类 号：TN242[电子电信—物理电子学]