THRESHOLD PUMP POWER AND STABILITY ZONE STUDY OF A CW  Ti:Sa LASER BASED ON USING TWO DIFFERENT DIELECTRIC  BROADBAND HIGH REFLECTIVE CAVITY MIRRORS

AWAZ ADIL   KAREEM; DIYAR A. S. SADIQ  MAYI

doi:10.26682/sjuod.2020.23.2.9

AWAZ ADIL KAREEM Centre for material science and nanotechnology, Dept. of physics, Faculty of Science, University of Zakho, Kurdistan Region-Iraq
DIYAR A. S. SADIQ MAYI Centre for material science and nanotechnology, Dept. of physics, Faculty of Science, University of Zakho, Kurdistan Region-Iraq

DOI: https://doi.org/10.26682/sjuod.2020.23.2.9

Keywords: Pump power threshold Stability zone, Ti: Sapphire crystal, Broadband dielectric mirrors.

Abstract

The present work study the optical parameters for CW operation in Ti:Sapphire laser system with the
focus on stability zone and threshold pump power. The main aim of this study is to explore the influence
of a broadband dielectric resonator mirrors used in the laser cavity on the stability zone and threshold
pump power. This effect has been determined by using two types of mirrors with different broadband
reflection. The experimental results show the dependence of the stability and laser threshold pump on
broadband dielectric mirrors. For a broader dielectric mirror, the stability zone shows larger stable
distance with respect to the narrower mirror. Moreover, the threshold pump for the broader band is
smaller than the narrower. This study allows researcher choosing the appropriate optical components for
generating more stable laser with small threshold pump power.

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