Type: Article

Pulsed Nd:YAG passive Q-switched laser using Cr4:YAG crystal

Journal: Optics and Laser Technology (00303992)Year: April 2012Volume: 44Issue: Pages: 522 - 527

Erfani Jazi M. Dehghan Baghi M.Hajimahmoodzadeh M.^a Soltanolkotabi M.

a :University of Isfahan - IRAN(IR) - Isfahan

DOI:10.1016/j.optlastec.2011.08.013Language: English

Abstract

In this paper, we report the experimental results of a pulsed flash lamp Nd:YAG laser at wavelength of 1064 nm and Q-switched by Cr4:YAG solid state saturable absorber. We have obtained the output energy (E) and pulse- width (τp) of this laser for various initial transmissions of this saturable absorber. Furthermore, the effect of reflectivity of the output coupler (R), diameter of the rod (d), and optical length of the cavity (l) on this laser output data have been investigated. We have used the corner cube as a back mirror, which shows high laser stability and better brightness. We have obtained pulse-width 15 ns with 31 mJ output energy. We have also analyzed this laser theoretically and analytically, which agrees well with our corresponding experimental results. © 2011 Elsevier Ltd. All rights reserved.