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ORIGINAL RESEARCH article
Front. Phys.
Sec. Optics and Photonics
Volume 13 - 2025 | doi: 10.3389/fphy.2025.1539099
This article is part of the Research Topic Advanced High Power Solid-State Laser Technology, Volume II View all articles
Output Pulse Energy from Pulsed Single-Mode Fiber Amplifiers
Provisionally accepted
Samuel P Bingham 1
Daniel Matyas 2
Mark Mihalik 3
Thomas Wade Hawkins 1
Monica T Kalichevsky-Dong 1
John Ballato 1
Liang Dong 1*- 1 Clemson University, Clemson, United States
- 2 USASMDC, Redstone Arsenal, United States
- 3 United States Military Academy West Point, West Point, Georgia, United States
There is a lack of general study of the maximum pulse energy from fiber amplifiers with short durations (up to few hundreds of nanoseconds) that are limited by amplified spontaneous emission, which slows inversion growth and degrades pulse contrast. We have conducted a systematic study of a monolithic master oscillator power amplifier (MOPA) by varying pulse duration, repetition rate and fiber length using an in-house fabricated ytterbium-doped double-clad 50/250 fiber that demonstrated ~20ns pulses at ~1.5mJ, 100kHz repetition rate and ~200W average power with an M 2 =~1.1. The highest pulse energy obtained is ~1.7mJ with the main pulse. This pulsed fiber laser was limited only by fiber fuse, which happens roughly between 1 and 2mJ pulse energy regardless of pulse durations, fiber lengths and repetition rates tested. The model reported herein in this study is consistent with most experimental data in the literature and our own experimental data.
Keywords: Pulsed fiber laser, pulsed fiber amplifier, Fiber amplifier, fiber laser, nanosecond (ns) laser
Received: 03 Dec 2024; Accepted: 12 Mar 2025.
Copyright: © 2025 Bingham, Matyas, Mihalik, Hawkins, Kalichevsky-Dong, Ballato and Dong. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Liang Dong, Clemson University, Clemson, United States
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