Peng ZHANG^1,2*, Yan-Rong SONG³, Xin-Ping ZHANG³, Te-Li DAI^1,2, Yi-Ping LIANG^1,2, and Si-Qiang FAN^1,2

¹College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 400047, China
²Chongqing Key Laboratory of Optical Engineering, Chongqing Normal University, Chongqing 400047, China
³College of Applied Sciences, Beijing University of Technology, Beijing 100124, China

(Received November 29, 2010; Accepted April 25, 2011)

The temperature, the heat flux, and the temperature gradient in an InGaAs system vertical-external-cavity surface-emitting laser are numerical studied by the use of the finite element method, and the analysis is focused on the maximum temperature rise in the active region under various conditions. The effect of substrate thickness on the peak gain of quantum wells, the influence of pump spot radius on the maximum output power, and the spontaneous emission wavelength under different pump power are examined respectively.

Key words: vertical-external-cavity surface-emitting laser, thermal effect, heat flux, temperature gradient

^*E-mail address: gchzh2003@yahoo.com.cn