Measurement of the absorption coefficient of CO2 laser windows with hysteresis in the power-tuning curve of a single-mode continuous-wave CO2 laser.
We report a new method for the measurement of the absorption coefficient of CO(2) laser windows. The method exploits the hysteresis in the power-tuning curve of a single-mode continuous-wave CO(2) laser and allows measurements of absorption coefficients of the order of approximately 10(-3) cm(-1) in CO(2) laser windows a few millimeters thick.
Nagarkar
M M
MM
Laser Program, Centre for Advanced Technology, Indore 452 013, India.
Gupta
P K
PK