Transverse-mode coupling and diffraction loss in tunable Fabry–Pérot microcavities - Sorbonne Université Access content directly
Journal Articles New Journal of Physics Year : 2015

Transverse-mode coupling and diffraction loss in tunable Fabry–Pérot microcavities

Abstract

We report on measurements and modeling of the mode structure of tunable Fabry–Pérot optical microcavities with imperfect mirrors. We find that non-spherical mirror shape and finite mirror size leave the fundamental mode mostly unaffected, but lead to loss, mode deformation, and shifted resonance frequencies at particular mirror separations. For small mirror diameters, the useful cavity length is limited to values significantly below the expected stability range. We explain the observations by resonant coupling between different transverse modes of the cavity and mode-dependent diffraction loss. A model based on resonant state expansion that takes into account the measured mirror profile can reproduce the measurements and identify the parameter regime where detrimental effects of mode mixing are avoided.
Fichier principal
Vignette du fichier
document-2.pdf (2.58 Mo) Télécharger le fichier
Origin Publication funded by an institution
Loading...

Dates and versions

hal-01233196 , version 1 (24-11-2015)

Licence

Identifiers

Cite

Julia Benedikter, Thomas Hümmer, Matthias Mader, Benedikt Schlederer, Jakob Reichel, et al.. Transverse-mode coupling and diffraction loss in tunable Fabry–Pérot microcavities. New Journal of Physics, 2015, 17 (5), pp.053051. ⟨10.1088/1367-2630/17/5/053051⟩. ⟨hal-01233196⟩
316 View
329 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More