Title :
Efficient CW diode-pumped Tm, Ho:YLF laser with tunability near 2.067 μm
Author :
McGuckin, B.T. ; Menzies, Robert T.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
4/1/1992 12:00:00 AM
Abstract :
A conversion efficiency of 42% and slope efficiency of approximately 60% relative to absorbed pump power are reported from a continuous wave diode-pumped Tm, Ho:YLF laser at 2 μm with output power of 84 mW at sub-ambient temperatures. The emission spectrum is etalon tunable over a range of 16 cm-1 centered on 2.067 μm, with fine tuning capability of the transition frequency with crystal temperature at a measured rate of ~-0.03 cm-1-K-1. The effective emission cross section is measured to be 5×10-21 cm2. These and other aspects of the laser performance are discussed in the context of calculated atmospheric absorption characteristics in this spectral region and potential use in remote sensing applications
Keywords :
holmium; laser transitions; laser tuning; lithium compounds; optical pumping; solid lasers; thulium; yttrium compounds; 2.067 micron; 42 percent; 60 percent; 84 mW; LiYF4:Tm,Ho; YLF:Tm,Ho; absorbed pump power; calculated atmospheric absorption characteristics; continuous wave diode-pumped Tm, Ho:YLF laser; conversion efficiency; crystal temperature; effective emission cross section; emission spectrum; fine tuning capability; laser performance; remote sensing applications; slope efficiency; spectral region; transition frequency; tunability; Diodes; Frequency; Laser excitation; Laser transitions; Laser tuning; Power generation; Power lasers; Pump lasers; Temperature measurement; Tunable circuits and devices;
Journal_Title :
Quantum Electronics, IEEE Journal of
