Spectral characterization of a tunable alexandrite laser by rubidium absorption at 780 nm |
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Authors: | Nowak A. Krohn B. |
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Affiliation: | Los Alamos National Laboratory, Los Alamos, NM, USA; |
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Abstract: | Rubidium vapor was used to characterize the output of a tunable, pulsed alexandrite laser operating at 780 nm. Rubidium spectra were obtained at temperatures of 23, 50, 110, and 140°C. Excellent agreement was obtained with computer-synthesized spectra which yielded values for the effective laser bandwidth at different operating conditions. The model assumed a Voigt profile for the rubidium5^{2}P_{3/2} leftarrow 5^{2}S_{1/2}transition and a Gaussian profile for the laser pulse. The model also showed that the laser output was spectrally compact with no evidence of energy outside the narrow 780 nm central feature. |
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