单偏振双波长非保偏有源掺杂光纤激光器  

Dual-Wavelength of Single Polarized Fiber Laser Based on Common Active Fiber

作　　者：宁提纲[1] 裴丽[1] 胡旭东[1] 阮义 祁春慧[1] 冯素春[1] 许鸥[1] 鲁韶华[1] 

机构地区：[1]北京交通大学光波技术研究所全光网络与现代通信网教育部重点实验室,北京100044

出　　处：《中国激光》2008年第12期1868-1871,共4页Chinese Journal of Lasers

基　　金：国家863计划(2004AA31G200);国家自然科学基金(60771008);北京市自然科学基金(4082024);新世纪优秀人才支持计划(NCET-05-0091,NCET-06-0076);北京交通大学校科技基金(2006XM003)资助项目

摘　　要：利用宽带保偏光纤光栅(PFBG)、普通有源光纤和窄带普通光纤光栅构成独立的谐振腔,且窄带普通光纤光栅的中心波长分别与保偏光纤光栅的一个反射峰波长对准,可以输出稳定的双波长/单波长的单偏振激光。利用这一思想,制成了基于非保偏有源掺杂光纤的单偏振双波长光纤激光器。实验结果表明,双波长同时激射时的激光消光比为46.7 dB,单波长激光的消光比为59.6 dB,滤波出单波长测量其偏振度为98.5%。这种激光器在微波光子领域可用于在光域产生微波。Two independent resonators have been set up by using wide band polarization maintaining fiber Bragg grating（PFBG）, common active fiber and narrowband common fiber Bragg gratings （FBG）, and the central wavelength of the narrowband common FBG aims at one of the reflective peaks of PFBG, which can output stable dual/single wavelength single polarized laser. The Dual-wavelength of single polarized fiber laser based on common active fiber is fabricated and the fiber laser can output dual/single wavelength at normal temperature. The optical noise-to signal ratio（ONSR） of dual-wavelength laser is 46.7dB, and 59.6dB for one wavelength laser. The degree of polarization（DOP） of fiber laser is 98.5% by HP 8509B. This technique can be used in generation of microwave/ millimeter-wave for radio-over-fiber（ROF）.

关 键 词：光纤通信 光纤激光器 单偏振双波长光纤激光器 保偏光纤光栅 

分 类 号：TN248.1[电子电信—物理电子学]