Thermal analysis of self-heating effect in GaInAsP/InP membrane DFB laser on Si substrate

Toward realization of an ultra-low-power-consumption semiconductor light source for on-chip optical interconnection, thermal characteristics of a membrane DFB laser were theoretically investigated. From numerical analysis, the thermal resistance of the membrane laser was estimated to be 6100 K/W, which does not affect to lasing characteristics of the membrane DFB laser due to low power operation capability.