Author/Authors :
BINTI MUNAJAT, NUR FARIZAN University MalaysiaTerengganu - Faculty of Science and Technology - Department of Phrsical Sciences, Malaysia , BIDIN, NORIAH University of Teknologi Malaysia - Faculty of Science - Departmcnt of Physics, Malaysia
Abstract :
in many applications, the laser beam needs to be focused to a very small spot size, or else the overall brightness of the beam is crucial parameter. In this study, the BeamStar CCD Laser Beam Profiler was used as a diagnostics measurement system of Q-switched laser beams, The dye laser was utilized source of Q-switching lase. Two materials were used as saturable absorber inside the laser cavity, which are 1,3 -Diethyl-4, 2 -quinolyloxacarbocyanine Iodide (DQOCI) and Chromium-doped yttrium Aluminum Gamet (Cr4+: YAG) crystal.The output characteristics of the Q- switch laser posses of a uniphasc of TEM00 mode, Laser parameters as beam width, Gaussian Width and correlation were observed at various working distances, In general, the beam spot of passive Q-switch laser are independent with working distances.
