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Determination of the optimum absorption coefficient in Cr4+:forsterite lasers under thermal loading

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Abstract

We present the results of a novel experimental and numerical investigation aimed at minimizing thermal loading effects in room-temperature Cr4+:forsterite lasers. In the model we numerically calculated the incident pump power required for oscillation threshold to be attained by taking into account pump absorption saturation, pump-induced thermal gradients inside the crystal, and the temperature dependence of the upper-state fluorescence lifetime. Excellent agreement was obtained between model predictions and experimental threshold data. We then used the model to calculate the optimum absorption coefficient that minimizes the incident threshold pump power. At a crystal boundary temperature of 15 °C the optimum value of the absorption coefficient was numerically determined to be 0.64 cm-1. Such optimization studies, which are readily applicable to other laser systems, should make a significant contribution to the improvement of the power performance of Cr4+:forsterite lasers at room temperature.

© 1998 Optical Society of America

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Corrections

Alphan Sennaroglu and Baris Pekerten, "Determination of the optimum absorption coefficient in Cr4+:forsterite lasers under thermal loading:?errata," Opt. Lett. 24, 921-921 (1999)
https://opg.optica.org/ol/abstract.cfm?uri=ol-24-13-921

More Like This
Determination of the optimum absorption coefficient in Cr4+:forsterite lasers under thermal loading:?errata

Alphan Sennaroglu and Baris Pekerten
Opt. Lett. 24(13) 921-921 (1999)

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