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Browse Prior Art Database

Laser Cavity Cooling System

IP.com Disclosure Number: IPCOM000050097D
Original Publication Date: 1982-Sep-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Gruzman, B: AUTHOR

Abstract

Improved output efficiency is obtained from a solid state laser by placing the exciter flash lamp and laser rod in individual compartments separated by a combined optical and thermal filter.

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Laser Cavity Cooling System

Improved output efficiency is obtained from a solid state laser by placing the exciter flash lamp and laser rod in individual compartments separated by a combined optical and thermal filter.

Referring to the figure, flash lamp 1 and laser rod 2 are each supported in respective compartments 3 and 4 of housing 5. A combined optical and thermal filter 6 mounted in seal 7 separates the two compartments. Filter 6 is fabricated from glass that blocks most unwanted radiation from the flash tube, and is formed with an evacuated interior to provide a high impedance to thermal transfer.

The flash lamp is supported by seals 8 in the housing and its electrodes 9 extend outside the housing for connection to power. Laser rod 2 with extensions 10 is likewise supported by seals 11. Each compartment has its own inlet 12 and outlet 13 through which coolant is supplied. Since electrodes 9 are separated from the cooling medium, the required purity of the coolant is not as stringent. The optical effect of filter 6 decreases the non contributing pumping energy from the flash lamp and is primarily effective in the infrared wave lengths.

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