Low-repetition-rate, high pulse energy all-polarization-maintaining Er-doped fiber laser mode-locked with a nonlinear amplifying loop mirror

被引：3
|
作者：
Sun, Ji [1 ]
Zhou, Yue [1 ]
Ge, Zhaoyang [1 ]
Yin, Jie [2 ]
Yin, Feifei [1 ]
Dai, Jian [1 ]
Zhang, Tian [1 ]
Xu, Kun [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
[2] Beijing Inst Satellite Informat Engn, State Key Lab Space Ground Integrated Informat Te, Beijing, Peoples R China
来源：
LASER PHYSICS LETTERS | 2019年 / 16卷 / 04期
关键词：
mode-locked fiber lasers; optical fiber lasers; polarization maintaining fibers; optical pulse generation; GENERATION; EVOLUTION; COMB; NJ;
D O I：
10.1088/1612-202X/ab0c8e
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a low repetition rate mode-locked Er-doped fiber laser using an all-polarization-maintaining (PM) nonlinear amplifying loop mirror. Stable single pulse generation had a pulse energy of 4 nJ and a repetition rate as low as 1.96 MHz. A section of standard single mode PM fiber was used to compress the output pulses from 2.5 ps down to 660 fs, being nearly transform-limited. The robust mode-locking design and all-PM cavity make this fiber laser stable and compact. The output average power fluctuation is within 0.17% over 10 h. Therefore, this source is ideally suitable for high pulse energy applications, such as micro-machining and nonlinear microscopy through further amplification.
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页数：5
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