Possible repetitive pulse operation of diode-pumped alkali laser (DPAL)

Masamori Endo

doi:10.1117/12.2256450

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13 January 2017 Possible repetitive pulse operation of diode-pumped alkali laser (DPAL)

Masamori Endo

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Proceedings Volume 10254, XXI International Symposium on High Power Laser Systems and Applications 2016; 102540T (2017) https://doi.org/10.1117/12.2256450
Event: XXI International Symposium on High Power Laser Systems and Applications, 2016, Gmunden, Austria

Abstract

A theoretical study has been conducted for investigating the possibility of a diode-pumped alkali laser (DPAL) operating in repetitive pulsed mode. A one-dimensional, time-dependent rate-equation simulation of a Cs DPAL was developed to calculate the dynamic behavior of the active medium when Q-switching or cavity dumping was applied. The simulation modeled our small-scale experimental apparatus. In the continuous-wave (CW) mode, the calculated output power was in good agreement with the experimental value. Q-switching was shown to be ineffective because of the short spontaneous lifetime of the active medium, on the order of 10 ns. On the other hand, cavity dumping was proven to be effective. In typical operational conditions, a 54 times increase in peak power with respect to the CW power was predicted.

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Masamori Endo "Possible repetitive pulse operation of diode-pumped alkali laser (DPAL)", Proc. SPIE 10254, XXI International Symposium on High Power Laser Systems and Applications 2016, 102540T (13 January 2017); https://doi.org/10.1117/12.2256450

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