6 October 1986 Development In Tunable Solid State Lasers With High Spectral Purity, High Efficiency And Long Lifetime For Differential Absorption Lidar
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Proceedings Volume 0663, Laser Radar Technology and Applications I; (1986); doi: 10.1117/12.938650
Event: 1986 Quebec Symposium, 1986, Quebec City, Canada
Abstract
The paper presents a review of tunable vibronic solid state lasers for DIAL measurements and provides new experimental results for tunable Ti:Sapphire lasers, materials development and spectral bandwidth narrowing through injection control. The Ti:Sapphire laser materials study indicates promise for reducing undesirable absorption in the lasing region to below 1% per cm. Pulsed injection control of a Ti:Sapphire laser with a 2.5 pm narrow band pulsed dye laser and with a Ti:Sapphire laser is demonstrated with near to complete energy extraction, indicating homogeneous line broadening. The review covers the status of tunable solid state lasers in the wavelength ranges around 1.6 and 2.3 μM for DIAL measurement of important trace gases such as CH4 and CO and development needs for lasers with reduced cryogenic cooling needs. Ti:Sapphire and Alexandrite lasers are compared as lasers for DIAL measurements of H2O vapor and pressure and temperature at ≈ 720, 940, and 760 nm. The effects of laser gain on optical damage, energy extraction and amplified spontaneous emission are indicated for several tunable lasers.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R V Hess, P Brockman, C H Bair, J C Barnes, C E Byvik, A M Buoncristiani, C J Magee, "Development In Tunable Solid State Lasers With High Spectral Purity, High Efficiency And Long Lifetime For Differential Absorption Lidar", Proc. SPIE 0663, Laser Radar Technology and Applications I, (6 October 1986); doi: 10.1117/12.938650; https://doi.org/10.1117/12.938650
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KEYWORDS
Pulsed laser operation

Tunable lasers

Sapphire lasers

Absorption

Alexandrite lasers

Laser development

Semiconductor lasers

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