Open AccessHigh brightness energetic pulses delivered by compact microchip-MOPA system
Author(s) -
Vincent Yahia,
Takunori Taira
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.008609
Subject(s) - preamplifier , optics , brightness , beam (structure) , materials science , laser beam quality , optoelectronics , physics , laser , amplifier , laser beams , cmos
High brightness compact microchip-seeded MOPA system was realized. Implementing a microchip preamplifier stage acting as gain aperture element lead to excellent output beam quality with M 2 = 1.4. At maximum amplification level, 235 mJ (0.4 GW) of output energy (power) was measured. Analysis of the effect of the preamplifier showed that this element increases the available beam intensity by two orders of magnitude without significant increase in system footprint. Final beam brightness was 18 PW/sr.cm 2 .