Decomposed entropy and estimation of output power in deformed microcavity lasers

Abstract

Park et al. [Phys. Rev. A 106, L031504 (2022)] showed that the Shannon entropy of the probability distribution of a single random variable for far-field profiles (FFPs) in deformed microcavity lasers can efficiently measure the directionality of deformed microcavity lasers. In this study, we instead consider two random variables of FFPs with joint probability distributions and introduce the decomposed (Shannon) entropy for the peak intensity of directional emissions. This provides a new foundation such that the decomposed entropy can estimate the degree of the output power at given FFPs without any further information.

7 pages, 5 figures

References in corpus (4)

• Combining directional light output and ultralow loss in deformed microdisks
• Tunable directional emission and collective dissipation with quantum metasurfaces
• Optimization of conformal whispering gallery modes in limaçon-shaped transformation cavities
• Entropic measure of directional emissions in microcavity lasers