The characteristics of dynamic gratings in ultra-narrow linewidth erbium-doped fiber ring lasers

被引：0
|
作者：
Xu, Pan [1 ]
Hu, Zhengliang [1 ]
Hu, Yongming [1 ]
Ma, Mingxiang [1 ]
Ma, Lina [1 ]
机构：
[1] Natl Univ Def Technol, Sch Optoelect Sci & Technol, Changsha 410073, Hunan, Peoples R China
来源：
2011 INTERNATIONAL CONFERENCE ON OPTICAL INSTRUMENTS AND TECHNOLOGY: OPTOELECTRONIC DEVICES AND INTEGRATION | 2011年 / 8198卷
关键词：
dynamical gratings; transient effect; single longitudinal mode; fiber lasers; MECHANISM;
D O I：
10.1117/12.907171
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：
The characteristics of dynamic gratings greatly affect the linewidth and mode hopping properties of ultra-narrow linewidth erbium-doped fiber lasers. In this paper, we propose a novel method to estimate the temporal evolution of the reflectance spectrum of the dynamic gratings recorded in EDF based on the transient effect of the erbium ions. An experimental setup is also proposed to measure the reflectivity spectrum of the dynamic gratings utilized in lasers. The experimental data are compared with the numerical results and their differences are analyzed. The experiment results reveal some important transient characteristics of dynamic gratings in real lasers which are helpful to understand the mechanism of mode hopping.
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页数：6
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