Intrinsic recombination coefficients in quantum well semiconductor lasers

We show that it is possible to extract the intrinsic well lifetime and therefore the intrinsic recombination parameters from the measured carrier lifetime and spontaneous emission spectra of an InAsP-InGaAsP MQW laser. This method is based on a small signal solution to the rate equations for QW lasers which includes separate carrier levels for both the QW and barrier/SCH regions.