Miniature Q-switched flashlamp-pumped erbium glass lasers with low threshold and short output pulse duration

Alexander V. Levoshkin; Aleksey A. Petrov

doi:10.1117/12.454682

5 February 2002 Miniature Q-switched flashlamp-pumped erbium glass lasers with low threshold and short output pulse duration

Alexander V. Levoshkin, Aleksey A. Petrov

Author Affiliations +

Proceedings Volume 4680, Second International Conference on Lasers for Measurement and Information Transfer; (2002) https://doi.org/10.1117/12.454682
Event: Second International Conference on Lasers for Measurement and Information Transfer, 2001, St. Petersburg, Russian Federation

Abstract

A dependence of lasing threshold on laser rod diameter is investigated for Cr:Yb:Er phosphate glass under flashlamp pumping. The dependence is linear within limit of diameter variation from 1.6 mm to 2.5 mm and it can be described within the framework of Yb:Er:glass model. Minimum obtained electrical threshold is 2.2 J. A method of the output energy passive stabilization, based on stored energy saturation, is demonstrated. It is shown that the laser output energy can be maintained constant in spite of laser rod heating. Minimum output pulse duration measured is below 17 ns (FWHM) at relatively slow FTIR Q-switching. It is concluded that the output pulse duration can be reduced down to few ns at 10-mJ level of output energy.

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Alexander V. Levoshkin and Aleksey A. Petrov "Miniature Q-switched flashlamp-pumped erbium glass lasers with low threshold and short output pulse duration", Proc. SPIE 4680, Second International Conference on Lasers for Measurement and Information Transfer, (5 February 2002); https://doi.org/10.1117/12.454682

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