| 杨远洪,胡军,刘学静,靳伟.基于CPM-FBG的单频窄线宽DFB光纤激光器[J].光电子激光,2014,(9):1647~1651 |
| 基于CPM-FBG的单频窄线宽DFB光纤激光器 |
| Ultra-narrow linewidth single-frequency DFB fiber laser based on the CPM-FBG |
| 投稿时间：2014-05-24 |
| DOI： |
| 中文关键词: 光纤光学 相移光纤Bragg光栅(PSFBG) 电弧放电 分布反馈(DFB)光纤激光器 单频窄线 宽 |
| 英文关键词:fiber optics phase shifted fiber Bragg grating (PSFBG) arc discharge distribu ted feedback fiber (DFB) fiber laser single frequency narrow linewidth |
| 基金项目:国家重大科学仪器设备开发专项(2013YQ04081504)和创新团队发展计划(IRT1203)资助 项目 (1.北京航空航天大学 精密光机电一体化技术教育部重点实验室,北京 100191; 2.北京航空航天大学 惯性技术国防重点实验室,北京 100191; 3.香港理工大学 电机工程系,香港 999077) |
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| 中文摘要: |
| 利用电弧放电对光纤Bragg光栅(FBG)折射率的调制 作用,提出了基于折射率周期调制(CPM)FBG的单频窄线宽分布反馈(DFB)光纤激光器方案 。建立了CPM-FBG的数学模型并进行了仿真,验证了 CPM-FBG的相移光栅特性；在掺铒光纤(EDF)上制作出CPM-FBG,形成了DFB 单频窄线宽光纤激光器,激光器阈值功率为25.4mW,3dB线宽为805Hz,边摸抑制比大于48.8dB。 |
| 英文摘要: |
| Utilizing the modulation of the refrac tive index of the fiber Bragg grating based on the arc discharge process,a schem e of the single frequency narrow linewidth distributed feedback (DFB) fiber lase r based on the corrugation-pitch-modulated fiber Bragg grating (CPM-FBG) is proposed.The m athematical model and simulation study of the CPM-FBG is established,and the interest of phase shifte d fiber Bragg grating (PSFBG) is proved. An on-line CPM-FBG production system is achieved,and the erbium-doped CPM-FB G is formed.A single- frequency narrow linewidth distributed feedback (DFB) fiber laser is realized, and the laser threshold power is 25.4mW with 3dB linewidth at 805Hz and side mode rejection ratio greater than 48.8dB. |
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