Design and performance of the vegetation canopy lidar (VCL) laser transmitter

Design and performance of the vegetation canopy lidar (VCL) laser transmitter

The Vegetation Canopy Lidar (VCL) laser is a Nd:YAG Q-switched, diode side-pumped, zig-zag slab design producing 10 ns, 15 mJ pulses at 1064 nm. It employs an unstable resonator as well as a graded reflectivity output coupler with a Gaussian reflectivity profile. In order to conserve power, a conduc...

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Veröffentlicht in:Scientific and technical aerospace reports 2003-04, Vol.41 (8)
Hauptverfasser: Coyle, D Barry, Kay, Richard B, Lindauer Ii, Steven J
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Lindauer Ii, Steven J
description The Vegetation Canopy Lidar (VCL) laser is a Nd:YAG Q-switched, diode side-pumped, zig-zag slab design producing 10 ns, 15 mJ pulses at 1064 nm. It employs an unstable resonator as well as a graded reflectivity output coupler with a Gaussian reflectivity profile. In order to conserve power, a conductively cooled design is employed and is designed to operate over a range of 25 C without active thermal control. The laser is an oscillator-only design and equipped with an 15X beam expander to limit the output divergence to less than 60 microrad. Thermal lensing compensation in the side-pumped slab was performed with different treatments of the x and y portions of the z-directed beam. Performance data as a function of temperature are given.
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title Design and performance of the vegetation canopy lidar (VCL) laser transmitter
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