fa برپایی آزمایشگاهی و ساخت لیزر حالت جامد دمش جانبی Nd:YAG کلیدزنیQ شده با استفاده از مدولاتور آکستواپتیکی تخصصی Special پژوهشي Research <strong><span style="font-family:b nazanin;">در این پژوهش، یک لیزر پالسی </span></strong>&nbsp;<span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">Nd:YAG</span></span></span> <strong><span style="font-family:b nazanin;">با</span></strong> <strong><span style="font-family:b nazanin;">طول&shy;موج</span></strong> <strong><span style="font-family:b nazanin;">خروجی</span></strong><span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;"> nm</span></span></span> <strong><span style="font-family:b nazanin;">1064</span></strong> <strong><span style="font-family:b nazanin;">به صورت آزمایشگاهی بر پا شده است. چیدمان</span></strong> <strong><span style="font-family:b nazanin;">موردنظر</span></strong> <strong><span style="font-family:b nazanin;">یک</span></strong> <strong><span style="font-family:b nazanin;">کاواک خطی</span></strong> <strong><span style="font-family:b nazanin;">به</span></strong> <strong><span style="font-family:b nazanin;">طول</span></strong> <span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">cm</span></span></span> <strong><span style="font-family:b nazanin;">5/45</span></strong> <strong><span style="font-family:b nazanin;">می&shy;باشد</span></strong> <strong><span style="font-family:b nazanin;">که</span></strong> <strong><span style="font-family:b nazanin;">طول</span></strong> <strong><span style="font-family:b nazanin;">کاواک</span></strong> <strong><span style="font-family:b nazanin;">به</span></strong> <strong><span style="font-family:b nazanin;">صورت</span></strong> <strong><span style="font-family:b nazanin;">تجربی</span></strong> <strong><span style="font-family:b nazanin;">به</span></strong> <strong><span style="font-family:b nazanin;">دست آمده</span></strong> <strong><span style="font-family:b nazanin;">است</span></strong><strong><span dir="LTR"> .</span></strong><strong><span style="font-family:b nazanin;">میله&shy;ی</span></strong> <strong><span style="font-family:b nazanin;">لیزری</span></strong> <span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">Nd:YAG</span></span></span> <strong><span style="font-family:b nazanin;">به</span></strong> <strong><span style="font-family:b nazanin;">صورت</span></strong> <strong><span style="font-family:b nazanin;">جانبی</span></strong> <strong><span style="font-family:b nazanin;">و</span></strong> <strong><span style="font-family:b nazanin;">از</span></strong> <strong><span style="font-family:b nazanin;">سه</span></strong> <strong><span style="font-family:b nazanin;">طرف</span></strong> <strong><span style="font-family:b nazanin;">توسط آرایه&shy;های لیزر دیودی </span></strong><span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">GaAlAs</span></span></span><strong><span style="font-family:b nazanin;"><span style="font-size:10.0pt;"> &nbsp;</span></span></strong><strong><span style="font-family:b nazanin;">با طول&shy;موج خروجی </span></strong><span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">nm</span></span></span> <strong><span style="font-family:b nazanin;">808 و بیشینه توان خروجی </span></strong><span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">W</span></span></span><strong><span style="font-family:b nazanin;"> 80 مورد</span></strong> <strong><span style="font-family:b nazanin;">دمش</span></strong> <strong><span style="font-family:b nazanin;">قرار</span></strong> <strong><span style="font-family:b nazanin;">گرفت</span></strong><strong><span dir="LTR">.</span></strong><strong><span style="font-family:b nazanin;"> کلیدزنی</span></strong><span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">Q</span></span></span> <strong><span style="font-family:b nazanin;">&nbsp;با</span></strong> <strong><span style="font-family:b nazanin;">استفاده</span></strong> <strong><span style="font-family:b nazanin;">از یک</span></strong> <strong><span style="font-family:b nazanin;">مدولاتور</span></strong> <strong><span style="font-family:b nazanin;">آکستواپتیکی</span></strong> <strong><span style="font-family:b nazanin;">انجام</span></strong> <strong><span style="font-family:b nazanin;">شد</span></strong> <strong><span style="font-family:b nazanin;">و</span></strong> <strong><span style="font-family:b nazanin;">در</span></strong> <strong><span style="font-family:b nazanin;">نهایت</span></strong> <strong><span style="font-family:b nazanin;">کمترین</span></strong> <strong><span style="font-family:b nazanin;">پهنای پالس</span></strong> <strong><span style="font-family:b nazanin;">لیزر</span></strong> <strong><span style="font-family:b nazanin;">در</span></strong> <strong><span style="font-family:b nazanin;">نرخ</span></strong> <strong><span style="font-family:b nazanin;">تکرار</span></strong> <em><span dir="LTR"><span style="font-size:10.0pt;">KHz</span></span></em> <strong><span style="font-family:b nazanin;">2،</span></strong> <strong><span style="font-family:b nazanin;">500</span></strong> <strong><span style="font-family:b nazanin;">نانوثانیه</span></strong> <strong><span style="font-family:b nazanin;">به</span></strong> <strong><span style="font-family:b nazanin;">دست</span></strong> <strong><span style="font-family:b nazanin;">آمد</span></strong><strong><span dir="LTR">.</span></strong><strong><span style="font-family:b nazanin;"> در حالت پالسی و <em><span style="font-family:b nazanin;">در توان دمشی </span></em></span></strong><span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">W</span></span></span><em><strong><span style="font-family:b nazanin;"> 80 ، بیشترین انرژی در نرخ تکرار </span></strong></em><em><span dir="LTR"><span style="font-size:10.0pt;">KHz</span></span></em><em><strong><span style="font-family:b nazanin;"> &nbsp;2، </span></strong></em><span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">mJ</span></span></span> &nbsp;<em><strong><span style="font-family:b nazanin;">2/6 و بیشترین توان خروجی در نرخ تکرار </span></strong></em><span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">KHz</span></span></span> <em><strong><span style="font-family:b nazanin;">20، </span></strong></em>&nbsp;&nbsp;<span dir="LTR"><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">W</span></span></span> <em><strong><span style="font-family:b nazanin;">2/16 به دست آمد</span></strong></em><em><span style="font-family:arial,sans-serif;">.</span></em><span style="font-family:arial,sans-serif;"></span> In this research, The Nd:YAG pulsed laser with 1064 nm output wavelength has been considered experimentally. This setup is a linear cavity with 45.5 cm length that the length of the cavity is experimentally obtained. Nd:YAG laser rod has been sidely pumped and with three sides by GaAlAs diode laser arrays with 80 W maximum output power. The Q-switching was done by an Acousto-Optic Modulator (AOM) and finally, minimum laser pulse width was obtained 500 Nanosecond in 2 KHz repetition rate. In pulse mode and 80 W pumping power, maximum energy was obtained 6.2 mJ in 2 KHz repetition rate and the maximum output power was obtained 16.2 W in 20 KHz repetition rate. پهنای پالس لیزر, دمش جانبی, کلیدزنی Q, لیزر دیود GaAlAs, مدولاتور آکستواپتیکی. Laser pulse width, Side pumping, Q-switching, GaAlAs diode laser, Acousto-optic modulator. 657 660 http://opsi.ir/browse.php?a_code=A-10-1-1846&slc_lang=fa&sid=1 Mohammad Fooladi محمد فولادی 10031947532846007845 10031947532846007845 Yes Department of Physics, University of Vali-Asr rafsanjan, Rafsanjan دانشگاه ولی‌عصر (عج) رفسنجان Mohammad Khanzadeh محمد خان زاده 10031947532846007846 10031947532846007846 No Department of Physics, University of Vali-Asr rafsanjan, Rafsanjan دانشگاه ولی‌عصر (عج) رفسنجان Morad Didebanmehr مراد دیده بان مهر 10031947532846007847 10031947532846007847 No Laser Research Group, Did Afzar Jonoub, Shiraz شرکت دید افزار جنوب