Single-frequency high-energy pulses from an Er:Yb glass planar waveguide amplifier with good beam quality

被引：0
|
作者：
Nomura, Junia [1 ,2 ]
Hirosawa, Kenichi [1 ]
Ohata, Nobuo [1 ]
机构：
[1] Japan Acad, 5-1-1 Ofuna, Kamakura, Kanagawa 2478501, Japan
[2] Nihon Univ, Japan Coll Ind Technol, 1-2-1 Izumi, Narashino, Chiba 2758575, Japan
来源：
APPLIED PHYSICS EXPRESS | 2024年 / 17卷 / 04期
关键词：
planar waveguides; solid state lasers; laser amplifiers; laser sources; LARGE-MODE-AREA; HIGH-AVERAGE-POWER; 1.5; MU-M; FIBER LASER; PEAK-POWER; WIND LIDAR; EYE-SAFE; AMPLIFICATION; SYSTEM;
D O I：
10.35848/1882-0786/ad3a2e
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We demonstrate a master oscillator power amplifier system that emits single-frequency, high-energy optical pulses at 1539 nm using an Er, Yb:glass planar waveguide amplifier with a normalized frequency of the waveguide of 4.4. A maximum pulse energy of 9.7 mJ is observed at a repetition frequency of 500 Hz. The signal to noise ratio is 25 dB and is independent of the repetition frequency from 100 to 500 Hz. The beam quality factor M2 of the output is 1.03 thanks to the small normalized frequency of the planar waveguide.
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页数：4
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