Free spectral range electrical tuning of a high quality on-chip microcavity

Abstract

Reconfigurable photonic circuits have applications ranging from next-generation computer architectures to quantum networks, coherent radar and optical metamaterials. However, complete reconfigurability is only currently practical on millimetre-scale device footprints. Here, we overcome this barrier by developing an on-chip high quality microcavity with resonances that can be electrically tuned across a full free spectral range (FSR). FSR tuning allows resonance with any source or emitter, or between any number of networked microcavities. We achieve it by integrating nanoelectronic actuation with strong optomechanical interactions that create a highly strain-dependent effective refractive index. This allows low voltages and sub-nanowatt power consumption. We demonstrate a basic reconfigurable photonic network, bringing the microcavity into resonance with an arbitrary mode of a microtoroidal optical cavity across a telecommunications fibre link. Our results have applications beyond photonic circuits, including widely tuneable integrated lasers, reconfigurable optical filters for telecommunications and astronomy, and on-chip sensor networks.

arXiv commentMain text: 7 pages, 3 figures. Supplementary information: 7 pages, 9 figures

References in corpus (32)

• Cavity Optomechanics
• Optical frequency comb generation from a monolithic microresonator
• Observation of Strong Coupling between One Atom and a Monolithic Microresonator
• Nanophotonic Lithium Niobate Electro-optic Modulators
• Quantum many-body models with cold atoms coupled to photonic crystals
• Synchronization of Micromechanical Oscillators Using Light
• Collective dynamics in optomechanical arrays
• Ultra-high-Q tunable whispering-gallery-mode microresonator
• Controlling photonic structures using optical forces
• Microcomb-based true-time-delay network for microwave beamforming with arbitrary beam pattern control
• On-Chip Single-Photon Sifter
• Mechanical oscillation and cooling actuated by the optical gradient force
• High frequency GaAs nano-optomechanical disk resonator
• Super FSR tunable optical microbubble resonator
• Ultrasensitive optical magnetometry at the microscale
• Light-mediated cascaded locking of multiple nano-optomechanical oscillators
• Cooling and control of a cavity opto-electromechanical system
• Frequency tuning of the whispering gallery modes of silica microspheres for CQED and spectroscopy
• A chip-scale integrated cavity-electro-optomechanics platform
• Photoelastic coupling in gallium arsenide optomechanical disk resonators
• A microelectromechanically controlled cavity optomechanical sensing system
• Electrostatically tunable optomechanical "zipper" cavity laser
• Injection locking of an electro-optomechanical device
• Broadband Tuning of Optomechanical Cavities
• Critical optical coupling between a GaAs disk and a nanowaveguide suspended on the chip
• On-chip thermo-optic tuning of suspended microresonators
• All-optical switching and strong coupling using tunable whispering-gallery-mode microresonators
• Electromechanical tuning of vertically-coupled photonic crystal nanobeams
• Eliminating Structural Loss in Optomechanical Resonators Using Elastic Wave Interference
• High bandwidth on-chip capacitive tuning of microtoroid resonators
• Photonic ring resonator filters for astronomical OH suppression
• An opto-electro-mechanical system based on evanescently-coupled optical microbottle and electromechanical resonator

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• Nanomechanical test of quantum linearity
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• Fully reconfigurable optomechanical add-drop filters
• Chiral Chaos Enhanced Sensing
• Measurement-based preparation of non-Markovian and multimode mechanical states