Laserkopfkuehlvorrichtung

摘要

1314122 Lasers UNION CARBIDE CORP 17 June 1971 [6 July 1970] 28461/71 Heading H1C In order to prevent deterioration of a coolant liquid 16 flowing through laser head 10 having active medium 12 and light pump 15 mounted in the hollow interior 11 thereof the light pump 15 is provided with a titanium doped quartz envelope 14 substantially opaque to short ultra-violet radiation. The coolant liquid 16 has an optical coupling transmission characteristic greater than water at the laser pumping wavelengths and is of fluorinated ether and remains chemically inert due to the absorption of ultra-violet radiation by envelope 14.