Bangor University, School of Electronic Engineering, Dean Street, Bangor, LL57 1UT, Wales, UK.
Opt Lett. 2010 Nov 1;35(21):3688-90. doi: 10.1364/OL.35.003688.
Thermal effects and dynamical hysteresis in VCSELs under dc modulation have been experimentally studied. The results show that the VCSEL turn-on and turn-off currents can display both positive hysteresis and negative hysteresis, depending on the current modulation frequency and on the substrate temperature. Numerical simulations of semiconductor laser rate equations, extended to take into account thermal effects, show a good agreement with the observations.
已经对直流调制下 VCSEL 中的热效应和动态滞后进行了实验研究。结果表明，VCSEL 的开启和关闭电流可以显示正滞后和负滞后，这取决于电流调制频率和衬底温度。扩展到考虑热效应的半导体激光速率方程的数值模拟与观察结果吻合良好。
