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Proceedings Paper

Compact 1 mJ fiber MOPA for space-based laser-ablation resonant ionization mass spectrometry (LARIMS)
Author(s): Xiaodong Mu; William Crain; Can Nguyen; Pavel Ionov; Paul Steinvurzel; Yaniv Dotan; Petras Karuza; William Lotshaw; Todd Rose; Steven Beck; F. Scott Anderson
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Paper Abstract

A 1064 nm, 1 mJ pulsed fiber MOPA module, housed in 16”x14”x2.5” package for application in a lunar and planetary in-situ surface dating instrument is demonstrated. The module is based on a three-stage MOPA with a 60 μm core tapered fiber terminal amplifier. The master oscillator and first two preamplifier stages, which generate 20 μJ pulses, are all contained on a 13”x11”x1” board. Several improvements to the electronic signal control were instrumental to the laser development, including bipolar drive of the phase modulator for SBS suppression, shaping of the seed pulse to compensate pulse steepening, and pulsed operation of the power amplifier pump to reduce spontaneous emission at low pulse repetition frequency. The packaged laser runs at a repetition rate of 10 kHz and generates 10 ns pulses at 1 mJ with a 40 GHz linewidth, an M2 ~ 1.2 beam quality, and an 18 dB polarization extinction ratio. The modular design enables seven independent lasers to be stacked in a 20”x18”x16.25” enclosure, supporting a path towards a fiber laser based LARIMS for advanced materials characterization and chronological dating in harsh and remote environments.

Paper Details

Date Published: 26 February 2018
PDF: 8 pages
Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 1051211 (26 February 2018); doi: 10.1117/12.2295454
Show Author Affiliations
Xiaodong Mu, The Aerospace Corp. (United States)
William Crain, The Aerospace Corp. (United States)
Can Nguyen, The Aerospace Corp. (United States)
Pavel Ionov, The Aerospace Corp. (United States)
Paul Steinvurzel, The Aerospace Corp. (United States)
Yaniv Dotan, The Aerospace Corp. (United States)
Petras Karuza, The Aerospace Corp. (United States)
William Lotshaw, The Aerospace Corp. (United States)
Todd Rose, The Aerospace Corp. (United States)
Steven Beck, The Aerospace Corp. (United States)
F. Scott Anderson, Southwest Research Institute (United States)

Published in SPIE Proceedings Vol. 10512:
Fiber Lasers XV: Technology and Systems
Ingmar Hartl; Adrian L. Carter, Editor(s)

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