Dual-bandpass filter for self-starting mode-locking in All-PM NALM based fiber laser

被引：0
|
作者：
Nishiura, M. [1 ,2 ]
Shioda, T. [1 ]
机构：
[1] Saitama Univ, Grad Sch Sci & Engn, Sakura Ku, 255 Shimo Okubo, Saitama 3388570, Japan
[2] Sevensix Inc, Minato Ku, 6-10-1 Roppongi, Tokyo 1066117, Japan
来源：
FIBER LASERS XVIII: TECHNOLOGY AND SYSTEMS | 2021年 / 11665卷
关键词：
mode-locked laser; fiber laser; self-starting passive mode locking; all-polarization maintaining; nonlinear amplifying loop mirror; ultra-fast fiber lasers;
D O I：
10.1117/12.2576390
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：
We report superiorities of a NALM-based all-PM fiber laser incorporating dual-bandpass filter instead of ordinal single narrow bandpass filter. The fiber laser starts mode-locking quickly with relatively low pump powers. Shorter wavelength bandpass window component of dual-BPF is used for inducing Q-switched mode-locking and enlarging amplitude noise. Longer wavelength bandpass window component is used for keeping CW mode-locking. Once the laser starts mode-locking at longer wavelength window, spectrum components in shorter wavelength window are negligible. The laser produces various of ultra-fast pulses by adjusting longer wavelength window property.
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页数：6
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