One-sided composite cavity on an optical nanofiber for cavity QED

TL;DR

This paper presents the design and experimental demonstration of a one-sided composite cavity on an optical nanofiber, enhancing directional coupling efficiency for cavity QED applications through asymmetric defect mode gratings.

Contribution

It introduces a novel one-sided composite cavity on an optical nanofiber using a defect mode grating, with both numerical design and experimental validation.

Findings

Achieved efficient coupling in one-sided cavity configuration

Demonstrated good agreement between simulation and experimental results

Enhanced channeling efficiency into one side of the nanofiber

Abstract

We demonstrate a one-sided cavity on an optical nanofiber (ONF) using a composite method. The one-sided composite cavity is created by mounting an asymmetric defect mode grating on an ONF. We design the one-sided composite cavity on an ONF to enhance channeling efficiency into one side of ONF while operating from under- to critical- and over-coupling regimes using numerical simulations. Experimentally, we demonstrate coupling characteristics of the one-sided composite cavity, showing good correspondence with simulation results.