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@inproceedings{Damzen:2025:10.1117/12.3075180,
author = {Damzen, MJ and Minassian, A},
doi = {10.1117/12.3075180},
title = {Recent progress in diode-pumped Alexandrite lasers for single photon counting vegetation Lidar},
url = {http://dx.doi.org/10.1117/12.3075180},
year = {2025}
}
TY - CPAPER
AB - Diode-pumped Alexandrite is an attractive laser transmitter for satellite-based lidar due to its wavelength tunability, excellent material properties, and as a low size, weight and power (SWaP) technology under efficient red diode pumping. -edge of vegetation and is well-matched to detector technology. In this presentation, we overview two diode-pumped Alexandrite laser transmitters developed at Imperial College London with specification targeting single photon counting vegetation (forest canopy) lidar for future satellite-based missions. The first Alexandrite laser transmitter was designed and integrated into a ground-based lidar instrumentation and conducted single photon counting forestry field trials in the Netherlands. The second Alexandrite laser was engineered at a higher TRL incorporating greater space-compliancy in the design, and with successful environmental thermal cycling testing. Both lasers operated in Q-switched cavity-dumped mode to obtain the short-pulse (1.5 ns in ground-based laser and 1.4 ns in space compliant version) at multi-kHz pulse rates and at the 100 J-class output energies required for single photon counting vegetation lidar. This study shows that the TRL of Alexandrite lasers has reached a good level for consideration for future satellite-based lidar missions or operation on other platforms.
AU - Damzen,MJ
AU - Minassian,A
DO - 10.1117/12.3075180
PY - 2025///
SN - 0277-786X
TI - Recent progress in diode-pumped Alexandrite lasers for single photon counting vegetation Lidar
UR - http://dx.doi.org/10.1117/12.3075180
ER -