A novel dual-wavelength DFB fiber laser based on symmetrical FBG structure

被引：68
作者：
Liu, Xueming [1 ]
机构：
[1] Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710068, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2007年 / 19卷 / 9-12期
基金：
中国国家自然科学基金;
关键词：
distributed-feedback (DFB); fiber Bragg grating (FBG); fiber laser;
D O I：
10.1109/LPT.2007.894940
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel grating structure is proposed and demonstrated to obtain stable dual-wavelength (DW) distributed-feedback (DFB) fiber lasers at room temperature. The proposed grating is based on a symmetrical structure, where one half is periodically sampled by "0"-to-"pi" period and the other half is done by "pi"-to-"0" period. This structure can create two separated resonance cavities and hence achieve the stable DW lasing operation. By fabricating the proposed grating on a piece of Er: Yb-codoped fiber, we experimentally obtain a stable DW-DFB fiber laser with wavelength spacing of similar to 440 pm at room temperature.
引用
收藏
页码：632 / 634
页数：3
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