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Proceedings Paper

Tunable diode laser-pumped Tm,Ho:YLF laser operated in continuous-wave and Q-switched modes
Author(s): Brendan T. McGuckin; Hamid Hemmati; Robert T. Menzies
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Paper Abstract

Tunable continuous-wave and pulsed laser output was obtained from a Tm-sensitized Ho:YLiF4 crystal at subambient temperatures when longitudinally pumped with a diode laser array. A conversion efficiency of 42 percent and slope efficiency of approximately 60 percent relative to the absorbed pumped power have been achieved at a crystal temperature of 275 K. The emission spectrum was etalon tunable over a range of 16/cm centered at 2067 nm with fine tuning capability of the transition frequency with crystal temperature at measured rate of -0.03/cm/K. Output energies of 0.22 mJ per pulse and 22 ns pulse duration were recorded at Q-switch frequencies that correspond to an effective upper laser level lifetime of 6 ms, and a pulse energy extraction efficiency of 64 percent.

Paper Details

Date Published: 1 June 1992
PDF: 5 pages
Proc. SPIE 1627, Solid State Lasers III, (1 June 1992); doi: 10.1117/12.60157
Show Author Affiliations
Brendan T. McGuckin, Jet Propulsion Lab. (United States)
Hamid Hemmati, Jet Propulsion Lab. (United States)
Robert T. Menzies, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 1627:
Solid State Lasers III
Gregory J. Quarles, Editor(s)

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