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(3-5) μm and (8-12) μm Wavelengths Ultra-Short Tunable Laser Pulses Using Optical Parametric Oscillation Technique

Authors: A.A. Al- Dergazly --- F.F. Rasheed --- S.M. Jumaa
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2008 Volume: 4 Issue: 4 Pages: 35-39
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

A computational investigation has been carried out on optical parametric oscillation (OPO) technique. Non-collinear phase matching between the pumping wave and the two generated signal and idler waves has been taken into consideration. In order to separate the two generated waves a design has been put forward for a resonator for each wave within the same cavity and interrelated by mirror that transmits the pumped laser beam. The cavity configuration takes into account the three types of phase matching between the three waves. Solid state lasers were considered for pumping the nonlinear crystal. Furthermore, attention has been paid on the solid state Er:YAG laser for pumping the positive uniaxial AgGaSe2 crystal to generate a signal wave of (8-12)μm wavelength so the generated idler wave from 3.82 to 4.55μm wavelength.

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