Abstract
This paper presents a comprehensive study of the design and parametric investigation of a diode pump alkali laser (DPAL): an emerging, high quantum efficiency, challenging laser system in the near-infrared region with potential for numerous applications. It covers the design and development of a diode pumped alkali (rubidium) laser (Rb:DPAL) gain cell and associated subsystems including the glove box-based alkali transfer set-up. Laser generation (\(\lambda {\sim } 795\hbox { nm}\)) in a continuous wave (CW) mode with end-pumped geometry in the Rb cell is reported. Comparative studies on the Rb-DPAL output were carried out with various critical operating parameters such as buffer gas pressure, buffer gas composition, gain medium temperature and pump power / intensity. The experimental results were analysed and discussed in light of the efficacy of the pump beam absorption, the laser level kinetics and effective lasing volume in the Rb-DPAL gain cell.
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Acknowledgements
R Biswal acknowledges the support and encouragement from Dr K S Bindra, Head, LDIAD and Mr K Ranganathan, Head, LDIAD / HPLDL.
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Biswal, R., Mishra, G.K., Agrawal, S.K. et al. Studies on the design and parametric effects of a diode pump alkali (rubidium) laser. Pramana - J Phys 93, 58 (2019). https://doi.org/10.1007/s12043-019-1817-0
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DOI: https://doi.org/10.1007/s12043-019-1817-0