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A Compact Ti:Sapphire Laser With its Third Harmonic Generation (THG) for an Airborne Ozone Differential Absorption Lidar (DIAL) TransmitterA compact and high-pulse-energy Ti:Sapphire laser with its Third Harmonic Generation (THG) has been developed for an airborne ozone differential absorption lidar (DIAL) to study the distributions and concentrations of the ozone throughout the troposphere. The Ti:Sapphire laser, pumped by a frequency-doubled Nd:YAG laser and seeded by a single mode diode laser, is operated either at 867 nm or at 900 nm with a pulse repetition frequency of 20 Hz. High energy laser pulses (more than 110 mJ/pulse) at 867 nm or 900 nm with a desired beam quality have been achieved and utilized to generate its third harmonic at 289nm or 300nm, which are on-line and off-line wavelengths of an airborne ozone DIAL. After being experimentally compared with Beta-Barium Borate (beta - BaB2O4 or BBO) nonlinear crystals, two Lithium Triborate (LBO) crystals (5 x 5 x 20 cu mm) are selected for the Third Harmonic Generation (THG). In this paper, we report the Ti:Sapphire laser at 900 nm and its third harmonic at 300 nm. The desired high ultraviolet (UV) output pulse energy is more than 30 mJ at 300 nm and the energy conversion efficiency from 900 nm to 300 nm is 30%.
Document ID
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Chen, Songsheng
(Science and Technology Corp. Hampton, VA United States)
Storm, Mark E.
(Science Applications International Corp. Hampton, VA United States)
Marsh, Waverly D.
(NASA Langley Research Center Hampton, VA United States)
Petway, Larry B.
(NASA Langley Research Center Hampton, VA United States)
Edwards, William C.
(NASA Langley Research Center Hampton, VA United States)
Barnes, James C.
(NASA Langley Research Center Hampton, VA United States)
Date Acquired
August 20, 2013
Publication Date
January 10, 2000
Publication Information
Publication: Lidar Remote Sensing for Industry and Environment Monitoring
Volume: 4153
Subject Category
Lasers And Masers
Distribution Limits

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