TY - JOUR ID - TI - (3-5) μm and (8-12) μm Wavelengths Ultra-Short Tunable Laser Pulses Using Optical Parametric Oscillation Technique AU - A.A. Al- Dergazly AU - F.F. Rasheed AU - S.M. Jumaa PY - 2008 VL - 4 IS - 4 SP - 35 EP - 39 JO - Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية SN - 18132065 23091673 AB - 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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