Abstract
The modulation capabilities1 and high temperature performance2 of distributed feedback laser diodes may be enhanced by DFB gratings appropriately detuned from the material gain peak. Since InGaAs and InGaAsP materials are expected to exhibit a sublinear dependence of gain on carrier density at high carrier densities, the influence of wavelength-selective feedback (and hence lasing wavelength, λ) on the temperature sensitivity of laser diode threshold current is of importance.
© 1993 Optical Society of America
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