Universal presence of saturable nonradiative currents in six types of 1.3 μm buried heterostructure lasers

LaCourse, Joanne; Olshansky, Robert
February 1988
Applied Physics Letters;2/29/1988, Vol. 52 Issue 9, p700
Academic Journal
Measurement of the carrier lifetime below threshold reveals that the saturable nonradiative current reported previously for 1.3 μm vapor-phase-regrowth buried heterostructure lasers is a widespread problem in 1.3 μm InGaAsP buried heterostructure lasers. The saturable nonradiative current represents 10%–30% of the threshold current for most geometries and about 6% for buried crescent lasers. This nonradiative current is also responsible for low spontaneous output at very low currents.


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