R. Aitsadi et al., 2-DIMENSIONAL TEMPERATURE MODELING OF DH LASER-DIODES USING THE TRANSMISSION-LINE MODELING (TLM) METHOD, IEE proceedings. A, Science, measurement and technology, 141(1), 1994, pp. 7-14
The two-dimensional temperature distribution in a DH GaAs/GaAlAs laser
diode under continuous operation is analysed. The dynamic thermal dif
fusion equation is solved using the transmission-line modelling (TLM)
method. The heating mechanisms included in the model are nonradiative
recombination in the active region, partial reabsorption of generated
radiation in the active region, absorption of stimulated emission in t
he cladding regions, absorption of spontaneous radiation transferred t
o the capping and substrate layers, Joule heating of the substrate and
scattering loss at the heterojunction interfaces.