Imperial College London

ProfessorMichaelDamzen

Faculty of Natural SciencesDepartment of Physics

Professor of Experimental Laser Physics
 
 
 
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Contact

 

+44 (0)20 7594 7783m.damzen Website

 
 
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Location

 

610Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Coney:2021:10.1364/JOSAB.409921,
author = {Coney, A and Damzen, M},
doi = {10.1364/JOSAB.409921},
journal = {Journal of the Optical Society of America B: Optical Physics},
pages = {209--219},
title = {High-energy diode-pumped alexandrite amplifier development with applications in satellite-based lidar},
url = {http://dx.doi.org/10.1364/JOSAB.409921},
volume = {38},
year = {2021}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - 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 multi-pass ‘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 optimisation of a two-stage amplifier design is studied numerically and maximised with temperature, wavelength and pump pulse duration to produce 50 mJ pulse energy. This forms part of an optimised alexandrite MOPA design capable of high pulse energy, showing the future potential of diode pumped alexandrite for satellite-based atmospheric lidar.
AU - Coney,A
AU - Damzen,M
DO - 10.1364/JOSAB.409921
EP - 219
PY - 2021///
SN - 0740-3224
SP - 209
TI - High-energy diode-pumped alexandrite amplifier development with applications in satellite-based lidar
T2 - Journal of the Optical Society of America B: Optical Physics
UR - http://dx.doi.org/10.1364/JOSAB.409921
UR - https://www.osapublishing.org/josab/abstract.cfm?uri=josab-38-1-209
UR - http://hdl.handle.net/10044/1/84146
VL - 38
ER -