Title :
On the rate equations of semiconductor lasers for measuring spontaneous emission factor
Author :
Huang, Yong-Zhen
Author_Institution :
Inst. of Semicond., Acad. Sinica, Beijing, China
Abstract :
The rate equations used for measuring spontaneous emission factor /spl beta/ is examined through the comparison of numerical results. The results show that /spl beta/ obtained by using total spontaneous emission rate R/sub sp/=N//spl tau//sub sp/ is about double of that using R/sub sp/=BN/sup 2/. The magnitude difference between the measured /spl beta/ and that predicted by classical theory [8] will disappear by using more reasonable R/sub sp/=BN/sup 2/. The results also show that the magnitude of /spl beta/ may be underestimated by ignoring the nonradiative recombination rates.<>
Keywords :
carrier density; electron-hole recombination; laser theory; semiconductor lasers; spontaneous emission; classical theory; magnitude difference; nonradiative recombination rates; numerical results; rate equations; semiconductor lasers; spontaneous emission factor measurement; Charge carrier density; Electromagnetic measurements; Equations; Laser modes; Radiative recombination; Semiconductor lasers; Spontaneous emission; Surface emitting lasers; Surface fitting; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
