Results 11 to 20 of about 1,258 (167)

Advances in femtosecond laser direct writing of fiber Bragg gratings in multicore fibers: technology, sensor and laser applications

open access: yesOpto-Electronic Advances, 2022
In this article, we review recent advances in the technology of writing fiber Bragg gratings (FBGs) in selected cores of multicore fibers (MCFs) by using femtosecond laser pulses.
Alexey Wolf   +5 more
doaj   +3 more sources

Single-shot hyperspectral wavefront imaging [PDF]

open access: yesNature Communications
Single-shot hyperspectral wavefront sensing is essential for applications like spatio-spectral coupling metrology in high-power laser or fast material dispersion imaging.
Baptiste Blochet   +4 more
doaj   +2 more sources

Vernier effect using in-line highly coupled multicore fibers

open access: yesScientific Reports, 2021
We demonstrate optical fiber sensors based on highly coupled multicore fibers operating with the optical Vernier effect. The sensors are constructed using a simple device incorporating single-mode fibers (SMFs) and a segment of a multicore fiber.
Natanael Cuando-Espitia   +5 more
doaj   +1 more source

Controlled Excitation of Supermodes in a Multicore Fiber with a 5 × 5 Square Array of Strongly Coupled Cores

open access: yesPhotonics, 2021
Coherent propagation of supermodes in a multicore fiber is promising for power scaling of fiber laser systems, eliminating the need for the active feedback system to maintain the phases between the channels. We studied the propagation of broadband pulsed
Nikolay A. Kalinin   +7 more
doaj   +1 more source

Spatially and spectrally resolved multicore optical fiber sensor with polarization sensitivity

open access: yesAIP Advances, 2022
We design and fabricate a multicore fiber sensor with the end facets of cores patterned with one-dimensional sub-wavelength Au wire grid polarizers, which are aligned either radially or azimuthally on the cross section of the fiber. With a fan-out device
Y. Hou, Y. Jung
doaj   +1 more source

Influence of launch beam distribution on power flow and angular division multiplexing in seven-core silica optical fibers

open access: yesFrontiers in Physics, 2022
We analyze the effect of launch beam distribution on space-division multiplexing (SDM) performance in multimode multicore silica optical fibers (MM MC SOF) with seven cores.
Svetislav Savović   +6 more
doaj   +1 more source

Dual-Parameter Sensing With a Single Supermode Interferometer

open access: yesFrontiers in Sensors, 2022
Optical fiber interferometers have intrinsic sensitivity to temperature, thus, in sensing applications; they need a reference temperature sensor or a mechanism to control the temperature.
Jose A. Flores-Bravo   +2 more
doaj   +1 more source

Microwave Signal Processing over Multicore Fiber

open access: yesPhotonics, 2017
We review the introduction of the space dimension into fiber-based technologies to implement compact and versatile signal processing solutions for microwave and millimeter wave signals.
Sergi García   +4 more
doaj   +1 more source

A Novel Fiber Optic Sensor for Microparticle Velocity Measurement Using Multicore Fiber

open access: yesApplied Sciences, 2020
A novel fiber optic sensor is proposed to achieve the measurement of single microparticle velocity in a two-dimensional space by translating the cores of a multicore fiber in their respective directions into independent spatial filters.
Xin Ma, Zhao Sun, Haimei Luo, Xinwan Li
doaj   +1 more source

Multicore Fiber Scenarios Supporting Power Over Fiber in Radio Over Fiber Systems

open access: yesIEEE Access, 2019
We propose the integration of power over fiber in the next generation 5G radio access network front-haul solutions based on spatial division multiplexing with multicore fibers. The different architectures in both shared- and dedicated- core scenarios for
Carmen Vazquez   +6 more
doaj   +1 more source

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