Alexandrite-laser performance at high temperature.
The performance of a flash-pumped alexandrite laser operating in a long-pulse mode has been characterized at temperatures from 34 to 310 degrees C. Laser gain and efficiency increased monotonically up to 225 degrees C, with a peak pulse energy there more than four times the value at 34 degrees C. The output wavelength also increased monotonically from the 34 degrees C value of 752 nm to a maximum of 790 am at 310 degrees C.
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