Effect of Self-Absorption on the Output Power of CW CO2 Laser
|Iraqi Journal of Applied Physics Letters
|Article 1, Volume 2, Issue 1, April 2009, Pages 31-34
|O.A. Hamadi; D.N. Raouf; N.A.K. Alrubaiey
|In this work, the effect of self-absorption by molecules of the active medium on the output laser power of a low-pressure CW CO2 laser was studied. The effects of discharge current, output coupling and total gas pressure on the output laser power were discussed. It was explained that the self-absorption depends on CO2 concentration, output coupling and discharge current and there is a threshold value for both output coupling and discharge current at which the absorption is clearly effective.
|Laser; CW lasers; Self; absorption; Output coupling
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