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 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.

13 pages, 6 figures

References in corpus (9)

• Strong atom-field coupling for Bose-Einstein condensates in an optical cavity on a chip
• Fiber Fabry-Perot cavity with high finesse
• Brillouin-Wigner perturbation theory in open electromagnetic systems
• A single ion coupled to an optical fiber cavity
• Atom detection and photon production in a scalable, open, optical microcavity
• A small mode volume tunable microcavity: development and characterization
• Frequency splitting of polarization eigenmodes in microscopic Fabry-Perot cavities
• Cavity quantum electrodynamics with charge-controlled quantum dots coupled to a fiber Fabry-Perot cavity
• Narrow-band single photon emission at room temperature based on a single Nitrogen-vacancy center coupled to an all-fiber-cavity

Cited by in corpus (33)

• Cavity quantum electrodynamics with color centers in diamond
• Cavity-enhanced single photon source based on the silicon vacancy center in diamond
• A Fabry-Perot Microcavity for Diamond-Based Photonics
• Achievements and Perspectives of Optical Fiber Fabry-Perot Cavities
• Cavity-enhanced spectroscopy of a few-ion ensemble in Eu3+:Y2O3
• Microcavity resonance condition, quality factor, and mode volume are determined by different penetration depths
• Spectral engineering of coupled open-access microcavities
• Optimal design of diamond-air microcavities for quantum networks using an analytical approach
• Fabrication of mirror templates in silica with micron-sized radii of curvature
• Fiber cavities with integrated mode matching optics
• Cavity-enhanced Raman scattering for in situ alignment and characterization of solid-state microcavities
• Cryogenic platform for coupling color centers in diamond membranes to a fiberbased microcavity
• High quality-factor diamond-confined open microcavity
• Widely-tunable, doubly-resonant Raman scattering on diamond in an open microcavity
• Geometrically asymmetric optical cavity for strong atom-photon coupling
• Optimisation of Scalable Ion-Cavity Interfaces for Quantum Photonic Networks
• A mechanically stable and tunable cryogenic Fabry-Perot microcavity
• Observation of microcavity fine structure
• A tunable fiber Fabry-Perot cavity for hybrid optomechanics stabilized at 4 K
• Optimized single-shot laser ablation of concave mirror templates on optical fibers
• Scanning cavity microscopy of a single-crystal diamond membrane
• Fabry-Perot microcavity spectra have a fine structure
• Mode mixing and losses in misaligned microcavities
• Profile control of fibre-based micro-mirrors using adaptive laser shooting with $\text{in situ}$ imaging
• Coupling Light to Higher Order Transverse Modes of a Near-Concentric Optical Cavity
• Evolutionary algorithm to design high-cooperativity optical cavities
• Mapping standing-wave cavity modes with a commercial scanning near-field microscope tip
• Monitored wet-etch removal of individual dielectric layers from high-finesse Bragg mirrors
• On fundamental diffraction limitation of finesse of a Fabry-Perot cavity
• Observation of mode-mixing in the eigenmodes of an optical microcavity
• Observation of Electronic Modes in Open Cavity Resonator
• Optical microcavity characterization via resonance spectra and modes
• Simulating frequency splittings and loss in Fabry-Pérot cavities