Room-Temperature, Flashpumped, 2.09 Micron Solid State Laser.
Patent, filed 30 Apr 90, Patented 11 Feb 92,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A room temperature solid state laser for producing a laser emission at a wavelength of substantially 2.09 microns is disclosed. In a preferred embodiment, the laser includes a laser cavity defined by first and second reflective elements opposing each other on a common axis to form a path there between a laser crystal disposed in the laser cavity, the laser crystal having a host material capable of accepting Cr3 sensitizer ions, TM3 sensitizer ions and Ho3 activator ions an amount of Cr3 sensitizer ions between about 0.3 and about 2 dispersed within the host material an amount of TM3 sensitizer ions between about 3 and about 12 dispersed within the host material and an amount of Ho3 activator ions between about 0.1 and about 0.7 dispersed within the host material and flashlamp and means for exciting the laser crystal to produce a laser emission at substantially 2.09 microns with a slope efficiency of at least 4, and preferably of at least 5.
- Electrical and Electronic Equipment