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Thermal effects in Cr2+:ZnSe thin disk lasers

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4 Author(s)
Schepler, K.L. ; Air Force Res. Lab., Wright Patterson, OH, USA ; Peterson, R.D. ; Berry, P.A. ; McKay, J.B.

We report the modeling and experimental characterization of thermal lensing in Cr2+:ZnSe face cooled laser disks using the phase shift interferometry technique. The thermal lens powers of the 1 mm and 0.5 mm thick disks were strong (23 and 7 diopters at 8 W pumping). The thermal lens power scaled with disk thickness and pump power, and temperatures were reached in the disks such that nonradiative relaxation was significant. Laser output greater than 4 W average power was achieved using face cooled thin disks of Cr2+:ZnSe.

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:11 ,  Issue: 3 )