Observation of mode-mixing in the eigenmodes of an optical microcavity
arXiv:2108.08764 · doi:10.1364/OE.439224
Abstract
We present a method to determine the complex coupling parameter of a two-coupled-modes system by directly measuring the coupled eigenmodes rather than their eigenvalues. This method is useful because mode-mixing can be observed even if frequency shifts can not be measured. It also allows to determine the complex coupling parameter, from which we conclude that the observed coupling is mainly conservative. We observe mode-mixing in an optical microcavity, where the modes couple primarily at the mirror surface, as confirmed by AFM measurements. The presented method is general and can be applied to other systems to measure mode coupling more accurately and to determine the nature of the coupling.
arXiv comment7 pages, 3 figures
References in corpus (7)
- A gated quantum dot far in the strong-coupling regime of cavity-QED at optical frequencies
- Turning a molecule into a coherent two-level quantum system
- A small mode volume tunable microcavity: development and characterization
- Transverse-mode coupling and diffraction loss in tunable Fabry-Pérot microcavities
- Microcavity resonance condition, quality factor, and mode volume are determined by different penetration depths
- Tunable open-access microcavities for on-chip cQED
- Coupling to Modes of a Near-Confocal Optical Resonator Using a Digital Light Modulator