Cyj. Chu et H. Ghafourishiraz, EQUIVALENT-CIRCUIT THEORY OF SPONTANEOUS EMISSION POWER IN SEMICONDUCTOR-LASER OPTICAL AMPLIFIERS, Journal of lightwave technology, 12(5), 1994, pp. 760-767
An equivalent circuit model for a semiconductor laser amplifier (SLA)
has been developed. This model can be used with a. transfer matrix met
hod (TMM) to analyze the performance of a SLA. The validity of the mod
el is explored in this paper by analyzing the spontaneous emission noi
se power in a Fabry-Perot SLA with a uniform distribution of material
gain coefficient. The result is found to be identical with that derive
d by the Green function approach. The physical reasons for the validit
y of the equivalent circuit model are also discussed, and possible fur
ther applications of the model are suggested.