fa Thermal analysis of 980 nm vertical cavity surface emitting lasers with different oxide aperture diameters تخصصی Special پژوهشي Research <p dir="ltr">In this paper, the thermal analysis of 980 nm vertical cavity surface emitting lasers with different oxide aperture diameters is theoretically performed by using simulation software PICS3D which self-consistently combines three-dimensional simulation&nbsp; of carrier transport, self-heating and optical wave-guiding. Temperature profiles and heat power density were obtained by using a three-dimensional cylindrical heat generation and dissipation model. Simulation results show that Joule heating is the main heat source in the device. The thermal resistance increases significantly with a decrease in oxide aperture size.</p> <p dir="ltr">In this paper, the thermal analysis of 980 nm vertical cavity surface emitting lasers with different oxide aperture diameters is theoretically performed by using simulation software PICS3D which self-consistently combines three-dimensional simulation&nbsp; of carrier transport, self-heating and optical wave-guiding. Temperature profiles and heat power density were obtained by using a three-dimensional cylindrical heat generation and dissipation model. Simulation results show that Joule heating is the main heat source in the device. The thermal resistance increases significantly with a decrease in oxide aperture size.</p> Thermal analysis, Maximum active region temperature, Oxide aperture, Vertical cavity surface emitting lasers. Thermal analysis, Maximum active region temperature, Oxide aperture, Vertical cavity surface emitting lasers. 1085 1088 http://opsi.ir/browse.php?a_code=A-10-1-1191&slc_lang=fa&sid=1 Zahra Danesh Kaftroudi Zahra Danesh Kaftroudi Zahraadanesh@guilan.ac.ir 10031947532846005050 10031947532846005050 Yes Guilan University Guilan University