Bb. Elenkrig et al., Series resistance and its effect on the maximum output power of 1.5 mu m strained-layer multiple-quantum-well ridge waveguide InGaAsP lasers, J APPL PHYS, 87(1), 2000, pp. 1-4
The series resistance of InGaAsP/InP multiple quantum well ridge waveguide
laser diodes is investigated experimentally over a wide temperature range f
or both Fabry-Perot and distributed feedback type lasers. From the temperat
ure dependence of the series resistance is found that it is defined mostly
by the resistance of heterobarriers, although the semiconductor bulk resist
ance is also found to be a substantial part of ridge waveguide laser series
resistance. The effect of the laser series resistance on other performance
characteristics also investigated. The theoretically predicted strong corr
elation between the series resistance and laser maximum operating power is
confirmed experimentally. The ways of reducing of series resistance are dis
cussed. (C) 2000 American Institute of Physics. [S0021-8979(00)07301-1].