Rejuvenation of Overpressured or Contaminated Ion Laser Plasma Tubes

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The lifetime of continuous-wave ion lasers, which are commonly used as excitation sources for Raman scattering and in many other applications, is often determined by the longevity of the plasma tube. The average life of a plasma tube is approximately two to three years, and replacement of this expensive component is a large, hidden cost in ion laser maintenance. In some cases, overpressure or contamination of the active rare gas is the cause of decreased output or outright failure of the plasma tube; this is particularly a problem with Kr+ ion lasers, for which efficient operation is quite sensitive to gas pressure, and for which gas refill is a necessary periodic adjustment.

Keywords: Gas laser repair; Lasers, cw ion; Plasma tubes

Document Type: Research Article


Affiliations: Department of Chemistry, Michigan State University, East Lansing, Michigan 48824

Publication date: March 1, 1985

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