Observation of two-wave mixing in a single-frequency fiber amplifier induced by frequency modulation

被引：5
作者：
Hauge, Jakob M. [1 ,2 ]
Pedersen, Jens E. [2 ]
Bondu, Magalie [2 ]
Papior, Sidsel R. [3 ]
Laegsgaard, Jesper [1 ,2 ]
机构：
[1] Tech Univ Denmark, Dept Elect & Photon Engn, Orsteds Plads Bldg 343, DK-2800 Lyngby, Denmark
[2] NKT Photon AS, Blokken 84, DK-3460 Birkerod, Denmark
[3] Norlase ApS, Brydehusvej 13, DK-2750 Ballerup, Denmark
来源：
OPTICS LETTERS | 2022年 / 47卷 / 21期
关键词：
LASER;
D O I：
10.1364/OL.473741
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on the observation of unstable two-wave mixing in a Yb-doped optical fiber amplifier induced by frequency modulation of a single-frequency laser. What is believed to be a reflection of the main signal experiences a gain much higher than that provided by the optical pumping and potentially limits power scaling under frequency modula-tion. We propose an explanation for the effect based on the dynamic population and refractive index gratings formed by the interference between the main signal and its slightly frequency-detuned reflection.(c) 2022 Optica Publishing Group
引用
收藏
页码：5497 / 5500
页数：4
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