Results 21 to 30 of about 4,677 (215)

Frequency-multiplexed optical reservoir computing using a microcomb [PDF]

open access: yesNanophotonics
Optical reservoir computing (ORC) promises fast, energy-efficient temporal inference by harnessing the rich transient dynamics of photonic systems. Yet most ORC demonstrations still depend on fiber delay lines or camera-based spatial multiplexing, which ...
Cuevas Jonathan   +5 more
doaj   +2 more sources

Confirmation of Dissipative Sensing Enhancement in a Microresonator Using Multimode Input

open access: yesSensors, 2023
Optical microresonators have proven to be especially useful for sensing applications. In most cases, the sensing mechanism is dispersive, where the resonance frequency of a mode shifts in response to a change in the ambient index of refraction.
Sreekul Raj Rajagopal   +3 more
doaj   +1 more source

Hybrid InP and SiN integration of an octave-spanning frequency comb

open access: yesAPL Photonics, 2021
Implementing optical-frequency combs with integrated photonics will enable wider use of precision timing signals. Here, we explore the generation of an octave-span, Kerr-microresonator frequency comb using hybrid integration of an InP distributed ...
Travis C. Briles   +9 more
doaj   +1 more source

Kerr nonlinearity-assisted quadratic microcomb

open access: yesFrontiers in Physics, 2022
Generation of nonlinear frequency combs in χ(3) optical microresonators has attracted tremendous research interest during the last decade. Recently, realization of the microcomb owing to χ(2) optical nonlinearity in the microresonator promises new ...
Ke Wang   +9 more
doaj   +1 more source

Soliton linear-wave scattering in a Kerr microresonator

open access: yesCommunications Physics, 2022
Tuneable microresonator frequency combs offer low-power, coherent light with a small device footprint. Here, the concept of controlling the comb frequency by detuning the probe phase is translated from photonic crystal fibres to a Kerr microresonator.
Pierce C. Qureshi   +7 more
doaj   +1 more source

Liquid Droplet Microresonators [PDF]

open access: yesSensors, 2019
We provide here an overview of passive optical micro-cavities made of droplets in the liquid phase. We focus on resonators that are naturally created and suspended under gravity thanks to interfacial forces, illustrating simple ways to excite whispering-gallery modes in various slow-evaporation liquids using free-space optics.
Giorgini Antonio   +4 more
openaire   +4 more sources

300 GHz Wireless Link Based on Whole Comb Modulation of Integrated Kerr Soliton Combs

open access: yesIEEE Photonics Journal, 2023
A Kerr microresonator frequency comb, combined with an ultrafast photodiode, has been utilized to generate millimeter- and terahertz-waves with low-phase-noise.
Tomohiro Tetsumoto, Antoine Rolland
doaj   +1 more source

The infinity-loop microresonator: A new integrated photonic structure working on an exceptional surface

open access: yesAPL Photonics, 2023
Exceptional points, where eigenvalues and eigenvectors coalesce, impact the behavior of different photonics components that show, e.g., enhanced sensing, coherent perfect absorption, unidirectional lasing, and chirality.
Riccardo Franchi   +3 more
doaj   +1 more source

Optofluidic Sensor Based on Polymer Optical Microresonators for the Specific, Sensitive and Fast Detection of Chemical and Biochemical Species

open access: yesSensors, 2023
The accurate, rapid, and specific detection of DNA strands in solution is becoming increasingly important, especially in biomedical applications such as the trace detection of COVID-19 or cancer diagnosis.
Nolwenn-Amandine Keriel   +6 more
doaj   +1 more source

Soliton-comb generation in ring-shaped optical Kerr microresonators under thermal effects

open access: yesResults in Optics, 2023
Soliton combs are nonlinear wavetrains resulting from entanglements of localized waves which may be pulse or kink solitons, forming periodic structures called soliton crystals. In this work we examine the possible generation of soliton-comb structures in
I. Ndifon Ngek, Alain M. Dikandé
doaj   +1 more source

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