Results 21 to 30 of about 56,421 (293)

Compact on-Chip Temperature Sensors Based on Dielectric-Loaded Plasmonic Waveguide-Ring Resonators

open access: yesSensors, 2011
The application of a waveguide-ring resonator based on dielectric-loaded surface plasmon-polariton waveguides as a temperature sensor is demonstrated in this paper and the influence of temperature change to the transmission through the waveguide-ring ...
Sergey I. Bozhevolnyi   +2 more
doaj   +1 more source

Frequency locking of an erbium-doped fiber ring laser to an external fiber Fabry-Perot resonator [PDF]

open access: yes, 1993
An all-fiber, single-frequency, erbium-doped ring laser has been frequency locked to a resonance peak of an external fiber Fabry-Perot resonator by the Pound-Drever technique.
Dawson, Jay W.   +2 more
core   +1 more source

Acoustic ring resonator: Experiments and simulations

open access: yesAIP Advances, 2022
The application of acoustic ring resonator structures for the manipulation of audio frequency acoustic waves is demonstrated experimentally and via numerical simulation.
William M. Robertson   +5 more
doaj   +1 more source

Analysis of a Silicon Dual-Coupled-Ring Resonator Modulator Based on Push–Pull Coupling Tunings

open access: yesIEEE Photonics Journal, 2018
We present a silicon dual-coupled-ring resonator modulator with push–pull coupling tunings. The basic idea of this scheme is to construct a dual-coupled-ring resonator structure in which the coupling coefficients of all coupling regions are ...
Zhen Zhou, Li Shuang Feng
doaj   +1 more source

Microfabricated optofluidic ring resonator structures [PDF]

open access: yesApplied Physics Letters, 2011
We describe the fabrication and preliminary optical characterization of rugged, Si-micromachined optofluidic ring resonator (μOFRR) structures consisting of thin-walled SiOx cylinders with expanded midsections designed to enhance the three-dimensional confinement of whispering gallery modes (WGMs).
Scholten, Kee   +2 more
openaire   +3 more sources

Two-dimensional optical ring resonators based on radial Bragg resonance [PDF]

open access: yes, 2003
A Bragg-reflection-based ring resonator is proposed and analyzed. Closed-form expressions for the field and dispersion curves for radial Bragg gratings and photonic bandgap crystals are derived.
Scheuer, Jacob, Yariv, Amnon
core   +1 more source

Nanofiber-segment ring resonator

open access: yesOptics Letters, 2016
We describe a fiber ring resonator comprised of a relatively long loop of standard single-mode fiber with a short nanofiber segment. The evanescent mode of the nanofiber segment allows the cavity-enhanced field to interact with atoms in close proximity to the nanofiber surface. We report on an experiment using a warm atomic vapor and low-finesse cavity,
Jones, D. E.   +3 more
openaire   +3 more sources

Ultralow-loss silicon ring resonators [PDF]

open access: yesOptics Letters, 2012
We experimentally demonstrate silicon ring resonators with internal quality factors of Q(0)=2.2×10(7), corresponding to record 2.7 dB/m propagation losses. Importantly, we show that these propagation losses are limited by bend loss, indicating that the propagation loss limit for silicon has not yet been reached.
Aleksandr, Biberman   +4 more
openaire   +2 more sources

Tunable Silicon Photonic RF Phase Shifter With Low RF Power Variation Based on Constructive Interference of an Add-Drop Ring Resonator

open access: yesIEEE Photonics Journal, 2018
We propose and experimentally demonstrate a tunable silicon photonic radio frequency (RF) phase shifter with low power variation based on constructive interference of an add-drop ring resonator. The thermal nonlinear effect of the add-drop ring resonator
Yanping Yu   +5 more
doaj   +1 more source

Improving Linewidth and Extinction Ratio Performances of Lithium Niobate Ring Modulator Using Ring‐Pair Structure

open access: yesAdvanced Photonics Research, 2023
Electro‐optic modulators lie at the heart of complex integration and high‐density electro‐optic systems. One of the representative electro‐optic modulators is thin‐film lithium niobate‐based microring modulator which has demonstrated advantages of ...
Songyan Hou   +5 more
doaj   +1 more source

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