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Coherent combination of micropulse tapered amplifiers at 828 nm for direct-detection LIDAR applications

Authors :
Qin Liu
Sylvie Janicot
Patrick Georges
Gaëlle Lucas-Leclin
Source :
Optics Letters. 48:489
Publication Year :
2023
Publisher :
Optica Publishing Group, 2023.

Abstract

We report on the design of a compact master oscillator power amplifier (MOPA) diode laser architecture at 828 nm suitable for direct-detection LIDARs, specifically applied to water vapor differential absorption LIDARs. Coherent beam combination of two pulsed high-brightness tapered amplifiers (1 μs, 10 kHz), seeded by a DBR laser diode, is demonstrated. The phase dynamics during the pulses have been thoroughly investigated. The main limitation to the CBC efficiency is quantified. The maximum combined pulse energy reaches 10.3 μJ with combining efficiency above 82% ± 5%.

Details

ISSN :
15394794 and 01469592
Volume :
48
Database :
OpenAIRE
Journal :
Optics Letters
Accession number :
edsair.doi...........3c0fa13795874fc7feb2788c4d24a676
Full Text :
https://doi.org/10.1364/ol.481895