Temperature controller for gas laser resonator

Details Temperature controller for gas laser resonator Temperature controller for gas laser resonator

1986-10-10

1988-04-26

Davie, James W.

Coherent light generators

Particular active media

Gas

372 34, 372 35, 165139, 165154, H01S 322

Patent

active

047409819

ABSTRACT:
A temperature controller unit for use in a gas laser resonator structure using a gas lasing medium excited within a resonator cavity having reflective optical surfaces for producing a beam of coherent radiation, and the gas lasing medium being circulated through a heat exchanger to maintain a predetermined lasing temperature range. The temperature controller unit includes a tubular member of substantial length forming a primary chamber for conducting said gas lasing medium through the heat exchanger in a non-contaminating environment to reduce gas contaminate buildup on the optical surfaces in the resonator cavity, end caps sealably closing the ends of the tubular member and receiving gas lasing medium from the resonator structure, and an outlet tube having an open end positioned within the primary chamber for conveying the gas lasing medium for recirculation to the resonator structure. The method of assembling the temperature controller unit including the steps of inserting the outlet tube into the tubular member, providing a protective device for the tubular member during installation within the outer casing of the heat exchanger, removing the protective device and orienting the tubular member longitudinally, extending and inserting the outer end of the outlet tube through one end cap, and applying the end caps to the tubular member.

REFERENCES:
patent: 3599113 (1971-08-01), Cremosnik
patent: 4547885 (1985-10-01), Allen et al.
patent: 4660209 (1987-04-01), Osada et al.
patent: 4661958 (1987-04-01), Bowes et al.

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