10 W, 2 mJ-level ns all-fiber amplifier at 2.8 μm

被引：1

作者：

Leonov, Stanislav ^{[1
]}

Perry-auger, Quentin ^{[1
]}

Karim, Andrew ^{[1
]}

Zhang, Daiying ^{[2
]}

Kraemer, Darren ^{[2
]}

Vallee, Real ^{[1
]}

Bernier, Martin ^{[1
]}

机构：

[1] Univ Laval, Ctr Opt Photon & Lasers COPL, Quebec City, PQ G1V 0A6, Canada

[2] Light Matter Interact Inc, 88 Adv Rd, Toronto, ON M8Z 2T7, Canada

来源：

OPTICS LETTERS | 2024年 / 49卷 / 21期

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

LASER; PULSES; ABLATION;

D O I：

10.1364/OL.538776

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this Letter, we demonstrate a single-stage erbium-doped fluoride fiber amplifier composed of two spliced large core fibers with respective diameters of 85 and 130 mu m. An optical parametric generator (OPG) operating at a 5 kHz repetition rate, and providing similar to 2 ns pulse duration, and an average output power of 500 mW at a wavelength of 2.8 mu m was used as a seed source. This nanosecond amplifier configuration achieved an average output power of 10 W with a record pulse energy of 2 mJ, corresponding to 1 MW of output peak power. The maximum slope efficiency of this hybrid amplifier is 21% with respect to the total incident pump power at 940 nm. The presented master-oscillator power-amplifier (MOPA) configuration shows its potential for further power and energy scaling. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.

引用

页码：6169 / 6172

页数：4

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