High-energy diode-pumped alexandrite amplifier development with applications in satellite-based lidar

被引：13

作者：

Coney, Alexander T. ^{[1
]}

Damzen, Michael J. ^{[1
]}

机构：

[1] Imperial Coll, Photon Grp, Blackett Lab, London SW7 2AZ, England

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2021年 / 38卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

LONGITUDINAL MODE-OPERATION; EXCITED-STATE ABSORPTION; TEMPERATURE-DEPENDENCE; LASER; EFFICIENCY; AIRBORNE;

D O I：

10.1364/JOSAB.409921

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Efficient, wavelength-tunable diode-pumped alexandrite laser systems offer the potential for a more versatile, satellite-based lidar source compared to fixed wavelength Nd:YAG systems and non-space compliant lamp-pumped alexandrite. In this paper, we develop a strategy to enable the high-energy operation required for atmospheric lidar based on an efficient diode-pumped master oscillator power amplifier (MOM) system design. A novel multipass "diamond" slab amplifier geometry is introduced alongside the experimental results of the world's first diode-pumped alexandrite amplifier producing a gain of 2.13 in a demonstration system. A diode-pumped Q-switched alexandrite oscillator is presented with a record-highest pulse energy of 3.80 mJ. Detailed optimization of a two-stage amplifier design is studied numerically and maximized with temperature, wavelength, and pump pulse duration to produce 50 mJ pulse energy. This forms part of an optimized alexandrite MOPA design capable of high pulse energy, showing the future potential of diode-pumped alexandrite for satellite-based atmospheric lidar. (C) 2020 Optical Society of America

引用

页码：209 / 219

页数：11

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