Closed-loop purging system for laser

Details Closed-loop purging system for laser Closed-loop purging system for laser

2007-07-03

2007-07-03

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular active media

Gas

C372S018000, C372S053000, C372S055000

Reexamination Certificate

active

10917170

ABSTRACT:
A method of minimizing contamination of optical components of a laser resonator is disclosed. The resonator components are located in an enclosure, which may contain contaminants including water vapor and organic favor released by the optical components, mounts of the optical components, or the enclosure itself. The enclosure may also contain suspended particulate matter. In order to reduce the level of these contaminants, a purging system extracts gas from the enclosure and passes the gas through a desiccant, an organic vapor trapping material, and a particulate matter filter then returns the extracted gas to the enclosure. The purging system is particularly useful for ultrafast lasers and ultraviolet lasers where the power of the laser radiation increases the probability of destabilizing reactions between laser radiation and contaminants.

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