@inproceedings{0e7eb87bfba74253954c5ce56a5626f0,
title = "Supermode Dynamics in Coherent VCSEL Arrays",
abstract = "We study the supermode dynamics of optically coupled but electrically isolated dual-element photonic crystal vertical cavity surface emitting laser (VCSEL) arrays. The optical coupling is characterized by experimentally extracting a complex coupling coefficient, where the real component is related to the frequency splitting between the two array non-Hermitian supermodes, whereas the imaginary coupling coefficient represents the gain difference between these two supermodes. The imaginary coefficient is derived from the coupling-induced excess output power. We compare three photonic crystal periods and find the largest value arising from the closest separation between two cavities. For the array with the highest imaginary component, the real part is determined which is related to the photon-photon modulation resonance, which has the potential to increase the VCSE digital modulation rate.",
keywords = "VCSEL array, coupling, coupling coefficient, modulation, photonic crystal",
author = "Nusrat Jahan and William North and Choquette, {Kent D.}",
note = "Publisher Copyright: {\textcopyright} 2022 SPIE; Vertical-Cavity Surface-Emitting Lasers XXVI 2022 ; Conference date: 20-02-2022 Through 24-02-2022",
year = "2022",
doi = "10.1117/12.2615567",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Chun Lei and Choquette, {Kent D.} and Graham, {Luke A.}",
booktitle = "Vertical-Cavity Surface-Emitting Lasers XXVI",
}