Answers are grounded in this paper and cite their sources.
Threshold current has been reduced to 22–35 mA for 1.54 μm InGaAsP/InP distributed feedback (DFB) lasers with second-order grating, and single-longitudinal-mode operation at an output power of 5 mW has been achieved up to 90°C.
No takes yet. Share an insight, caveat, or question.
Wakao et al. (1985) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: