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26 August 2017 97-μJ single frequency linearly polarized nanosecond pulsed laser at 775 nm using frequency doubling of a high-energy fiber laser system
Qiang Fang, Xuelong Cui, Zhuo Zhang, Liang Qi, Wei Shi, Jinhui Li, Guoqing Zhou
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Optical Engineering, Vol. 56, Issue 8, 086112 (August 2017). https://doi.org/10.1117/1.OE.56.8.086112
Abstract
We report a high-energy (∼97  μJ), high-peak power (∼20  kW), single-frequency, linearly polarized, near diffraction-limited (M2<1.2) ∼4.8-ns pulsed laser source at 775 nm with a 260-Hz repetition rate. This laser was achieved by frequency doubling of a high-energy linearly polarized all-fiber-based master oscillator–power amplifier, seeded by a single-frequency semiconductor distributed feedback laser diode at 1550 nm. The frequency doubling is implemented in a single-pass configuration using a periodically poled lithium niobate crystal, and a conversion efficiency of 51.3% was achieved.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Qiang Fang, Xuelong Cui, Zhuo Zhang, Liang Qi, Wei Shi, Jinhui Li, and Guoqing Zhou "97-μJ single frequency linearly polarized nanosecond pulsed laser at 775 nm using frequency doubling of a high-energy fiber laser system," Optical Engineering 56(8), 086112 (26 August 2017). https://doi.org/10.1117/1.OE.56.8.086112
Received: 15 May 2017; Accepted: 2 August 2017; Published: 26 August 2017
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Cited by 17 scholarly publications.
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KEYWORDS
Fiber lasers
Pulsed laser operation
Second-harmonic generation
Semiconductor lasers
Fiber amplifiers
Laser systems engineering
Crystals
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