High-energy diode-pumped alexandrite amplifier development with applications in satellite-based lidar
| Autor: | A. T. Coney, Michael J. Damzen |
|---|---|
| Přispěvatelé: | European Space Agency / Estec |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
EFFICIENCY AIRBORNE 0205 Optical Physics Optics 0102 Applied Mathematics Diode LONGITUDINAL MODE-OPERATION Science & Technology business.industry Amplifier Pulse duration Statistical and Nonlinear Physics Atmospheric lidar Atomic and Molecular Physics and Optics Wavelength 0906 Electrical and Electronic Engineering Lidar TEMPERATURE-DEPENDENCE Physical Sciences Systems design Satellite LASER EXCITED-STATE ABSORPTION business |
| Popis: | 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 (MOPA) 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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