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Photopumped laser diode continuous wave for optical gain determination of Nd:YVO4 and Nd:YAG crystal medium |
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| รหัสดีโอไอ | |
| Creator | Juniastel RAJAGUKGUK |
| Title | Photopumped laser diode continuous wave for optical gain determination of Nd:YVO4 and Nd:YAG crystal medium |
| Contributor | Wuttichai CHAIPHAKSA, Jakrapong KAEWKHAO, Rachmat HIDAYAT, Fitrilawati FITRILAWATI |
| Publisher | Metallurgy and Materials Science Research Institute, Chulalongkorn University |
| Publication Year | 2562 |
| Journal Title | Journal of Metals, Materials and Minerals |
| Journal Vol. | 29 |
| Journal No. | 1 |
| Page no. | 16-21 |
| Keyword | Photopumped, Laser diode, Optical gain, Intensity of luminescence |
| URL Website | http://ojs.materialsconnex.com/index.php/jmmm/index |
| Website title | Journal of Metals, Materials and Minerals |
| ISSN | 08576149;26300508 |
| Abstract | Photopumped based on laser diode (LD) has designed by employing opticalinstruments which consist of laser source, optical lens and mirrors as resonator. Thissetup is aimed to determine of luminescence intensity of laser gain medium based onNd:YAG and Nd:YVO4 crystals. Laser diode at 805 nm with continuous wave (CW)mode was used as pumping light source with the maximum output power 1 W. The1064 nm wavelength laser can be obtained through a LD side pumped to laser gainmedium, Nd3+ doped YAG and YVO4 crystals respectively. Laser gain medium isplaced between intra cavity resonator and generates the laser power reflected inpower output (mW or Watt). The luminescence spectra of both crystals medium isutilized to obtain optical gain in dB (decibels). The obtained maximum gain ofNd:YVO4 and Nd:YAG mediums are 24.278 dB and 4.4 respectively, for absorbedpump power at 900 mW. The Nd:YVO4 crystal is able to produce a higher laseroutput intensity compared with Nd:YAG crystal. The arrangement of highreflectance or transmittance (HR/HT) mirror and lens as optical resonators are veryimportant because they are related to the high power of laser output. |
