Static and Dynamic Analysis of Lasing Action from Single and Coupled Photonic Crystal Nanocavity Lasers**Supported by the National Key Basic Research Special Fund/CNKBRSF of China under Grant Nos 2012CB933501, 2016YFA0301102, 2016YFB0401804 and 2016YFB0402203, the National Natural Science Foundation of China under Grant Nos 61535013, 61321063 and 61137003, the Strategic Priority Research Program of the Chinese Academy of Sciences under Grant

Abstract

The single and coupled photonic crystal nanocavity lasers are fabricated in the InGaAsP material system and their static and dynamic features are compared. The coupled-cavity lasers show a larger lasing efficiency and generate an output power higher than the single-cavity lasers, results that are consistent with the theoretical results obtained by rate equations. In dynamic regime, the single-cavity lasers produce pulses as short as 113 ps, while the coupled-cavity lasers show a significantly longer lasing duration. These results indicate that the photonic crystal laser is a promising candidate for the light source in high-speed photonic integrated circuit.