Time-averaged spectral line shapes of the a hyperfine component of the CuI 5782-Å line (2D3/2←2P½) from a pulsed high-gain cuprous chloride (CuCl) laser are measured with a high-resolution (±1 mK) Fabry-Perot interferometer. Four operational modes are studied: (1) high-power oscillator; (2) low-power oscillator; (3) oscillator-amplifier combination; and (4) spontaneous-emission source. Two models are used for the oscillator and amplifier: a quasi-steady-state approximation and a gain-switched pulsed model, respectively. The corresponding computed interferograms are fitted to the experimental ones by varying the unsaturated gain g0, saturation and spontaneous-emission parameters, and the temperature and homogeneous FWHM. Use of a common discharge tube enables us to achieve a one-one correspondence between experimental data and laser parameters, whose resulting values agree with those obtained by other methods. Typically, the total average spectral output of the high-power oscillator is ~6.7 W and its g0 value is 0.15 cm-1.
© 1983 Optical Society of America
W. C. Kreye and F. L. Roesler, "High-resolution line-shape analyses of the pulsed cuprous chloride-laser oscillator and amplifier," Appl. Opt. 22, 927-939 (1983)