Optical compensation for thermal lensing in conductively cooled

Details Optical compensation for thermal lensing in conductively cooled Optical compensation for thermal lensing in conductively cooled

1978-07-03

1980-04-22

Sikes, William L.

Oscillators

Molecular or particle resonant type

331 945D, H01S 3045

Patent

active

041997352

ABSTRACT:
Thermal lensing effects in a conductively cooled optically pumped laser rod are compensated by limiting the width of thermal contact between the rod surface and its supporting heat sink to an arc width of 70.degree. to 80.degree. and utilizing a simple cylindrical laser cavity mirror or mirrors. This limited heat sink contact produces nearly parallel isotherms in the rod which react with the laser beam so that it may be readily focused by a cylindrical beam focusing means in the laser optical resonator.

REFERENCES:
patent: 3339150 (1967-08-01), Bowness
patent: 3399359 (1968-08-01), Ott et al.
patent: 3471801 (1969-10-01), Woodbury et al.

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