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Noferesti, Amir, Kavosh Tehrani, Masoud, Maleki, Abbas. (1402). Influence of Pump Pulse Duration on the Output Performance of a LED-Pumped Nd:YAG Laser. دوماهنامه علمی - پژوهشی رهیافتی نو در مدیریت آموزشی, 8(2), 68-80. doi: 10.30495/jopn.2023.31798.1288
Amir Noferesti; Masoud Kavosh Tehrani; Abbas Maleki. "Influence of Pump Pulse Duration on the Output Performance of a LED-Pumped Nd:YAG Laser". دوماهنامه علمی - پژوهشی رهیافتی نو در مدیریت آموزشی, 8, 2, 1402, 68-80. doi: 10.30495/jopn.2023.31798.1288
Noferesti, Amir, Kavosh Tehrani, Masoud, Maleki, Abbas. (1402). 'Influence of Pump Pulse Duration on the Output Performance of a LED-Pumped Nd:YAG Laser', دوماهنامه علمی - پژوهشی رهیافتی نو در مدیریت آموزشی, 8(2), pp. 68-80. doi: 10.30495/jopn.2023.31798.1288
Noferesti, Amir, Kavosh Tehrani, Masoud, Maleki, Abbas. Influence of Pump Pulse Duration on the Output Performance of a LED-Pumped Nd:YAG Laser. دوماهنامه علمی - پژوهشی رهیافتی نو در مدیریت آموزشی, 1402; 8(2): 68-80. doi: 10.30495/jopn.2023.31798.1288

Influence of Pump Pulse Duration on the Output Performance of a LED-Pumped Nd:YAG Laser

Journal of Optoelectronical Nanostructures
مقاله 5، دوره 8، شماره 2 - شماره پیاپی 30، مرداد 2023، صفحه 68-80    اصل مقاله (1.12 M)
نوع مقاله: Articles
شناسه دیجیتال (DOI): 10.30495/jopn.2023.31798.1288
نویسندگان
Amir Noferesti؛ Masoud Kavosh Tehrani؛ Abbas Maleki*
Faculty of applied science, Malek Ashtar University of Technology, Iran.
تاریخ دریافت: 03 اردیبهشت 1402،  تاریخ بازنگری: 13 مرداد 1402،  تاریخ پذیرش: 15 خرداد 1402 
چکیده
Abstract:
In this paper, we performed an experimental study of a LED-pumped Nd:YAG laser that works in QCW and Q-switch modes. We examined how the pump pulse duration affects the laser output. The laser rod was a Nd:YAG crystal with a diameter of 7 mm and a length of 95 mm, side-pumped by 30 LED arrays, each with 18 single dies at 810 nm. The maximum output energy at 1064 nm was 10.5 mJ in the QCW mode, with a pump energy of 81 mJ (230 µs pulses at 1 Hz). The optical conversion efficiency and the slope efficiency were 12.5% and 18%, respectively. In the PQS mode, the output energy was 250 µJ, with a pulse width of 190 ns (FWHM), corresponding to a peak power of 1.31 kW. The beam divergence was 0.3 mrad with TEM00 mode. This LED-pumped Q-switched Nd:YAG laser can be used for laser range finder applications.
کلیدواژه‌ها
Light Emitting Diode؛ Nd:YAG Rod؛ Pump Pulse Duration؛ PQS(Passive Q-Switch QCW(Quasi-Continues Wave)
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