Results 31 to 40 of about 55,761 (298)

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

Design of passive ring resonators to be used for sensing applications [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2009
In this paper we report on the effects of two optical beams counterpropagating in a passive ring resonator that is the building block of several devices in a lot of sensing applications. By using the transfer matrix method in combination with the coupled
Ciminelli Caterina   +2 more
doaj   +1 more source

Frequency splitting of a multi-layered electric ring resonator [PDF]

open access: yes, 2015
We present experimental results on the multilayering effects of an electric ring resonator. The electromagnetic response of the electric ring resonator is measured via a scattering matrix using a vector network analyzer at the X-band frequency ...
E. M. Choi   +5 more
core   +1 more source

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

Radiation from Structured-Ring Resonators [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2017
We investigate the scalar-wave resonances of systems composed of identical Neumann-type inclusions arranged periodically around a circular ring. Drawing on natural similarities with the undamped Rayleigh-Bloch waves supported by infinite linear arrays, we deduce asymptotically the exponentially small radiative damping in the limit where the ring radius
Maling, B, Schnitzer, O, Craster, RV
openaire   +3 more sources

Advancing frequency fine-tuning: a theoretical approach to a novel metamaterial-inspired Bi-layer resonator

open access: yesMaterials Research Express, 2023
This study presents a novel adjustable device designed for precise frequency tuning within the S-band of the microwave spectra. In addition to the geometrical design and dielectric behavior of the resonator, this study identifies an influential governing
Piyush Mishra   +2 more
doaj   +1 more source

Design and Development of Ultrabroadband, High-Gain, and High-Isolation THz MIMO Antenna with a Complementary Split-Ring Resonator Metamaterial

open access: yesMicromachines, 2023
The need for high-speed communication has created a way to design THz antennas that operate at high frequencies, speeds, and data rates. In this manuscript, a THz MIMO antenna is designed using a metamaterial.
Ammar Armghan   +5 more
doaj   +1 more source

Mutual-Coupling in High-Q Silicon Dual-Concentric Micro-Ring/Racetrack Resonator

open access: yesIEEE Photonics Journal, 2022
Micro-ring resonator (MRR) is a key element in integrated optics. The mutual-coupling in dual-concentric MRR has great influence on the resonance output.
Yan Xu   +4 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

Characterizations of Effective Parameters and Circuit Modeling of U-Coupled Hybrid Ring Resonator Band Pass Filter

open access: yesIEEE Access
A two-port symmetrical, reciprocal, U-shaped mutually coupled hybrid ring resonator for ISM, L-band, and S-band applications is presented. The designed resonator is novel with a hybrid ring which comprises a square ring, a circular ring, and two U-shaped
Atul Varshney   +5 more
doaj   +1 more source

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