Excitability in semiconductor microring lasers: Experimental and theoretical pulse characterization

TL;DR

This paper investigates the excitable behavior of semiconductor microring lasers through experimental measurements and theoretical modeling, revealing unique pulse characteristics and their underlying mechanisms.

Contribution

It provides the first detailed experimental and theoretical analysis of noise-triggered pulses in semiconductor microring lasers, highlighting their unique statistical properties.

Findings

Inverse correlation between pulse amplitude and duration

Statistical distribution of noise-triggered pulses

Confirmation through numerical simulations

Abstract

We characterize the operation of semiconductor microring lasers in an excitable regime. Our experiments reveal a statistical distribution of the characteristics of noise-triggered optical pulses that is not observed in other excitable systems. In particular, an inverse correlation exists between the pulse amplitude and duration. Numerical simulations and an interpretation in an asymptotic phase space confirm and explain these experimentally observed pulse characteristics.