Results 11 to 20 of about 7,052 (200)

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

Opto-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, Alexander Dostovalov, Kirill Bronnikov, Mikhail Skvortsov, Stefan Wabnitz, Sergey Babin   +5 more
doaj   +3 more sources

Two-axis bend measurement with Bragg gratings in multicore optical fiber [PDF]

Optics Letters, 2003
We describe what is to our knowledge the first use of fiber Bragg gratings written into three separate cores of a multicore fiber for two-axis curvature measurement.
Araujo, Blanchard, Djordjevich, G. M. H. Flockhart, Gander, Gander, I. Bennion, J. D. C. Jones, J. S. Barton, Jones, L. Zhang, Liu, Patrick, Rao, Rosinski, W. N. MacPherson, Xu   +16 more
core   +4 more sources

Single-shot hyperspectral wavefront imaging [PDF]

Nature 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, Nathalie Lebas, Pascal Berto, Dimitrios Papadopoulos, Marc Guillon   +4 more
doaj   +2 more sources

A novel multicore Er/Yb co-doped microstructured optical fiber amplifier with peanut-shaped air holes cladding [PDF]

Nanophotonics
The multicore fiber amplifier, as a key component in spatial division multiplexing (SDM) communication systems, presents higher technical difficulty compared to traditional multi-channel single core fiber amplifiers, which has sparked widespread ...
Zhang Yifan, Zhao Yifei, Fang Ziwei, Liu Jiantao, Xia Changming, Hou Zhiyun, Zhao Xuesong, Tan Zhongwei, Dong Yi, Zhou Guiyao, Yuan Jinhui   +10 more
doaj   +2 more sources

Vernier effect using in-line highly coupled multicore fibers

Scientific 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, Miguel A. Fuentes-Fuentes, Amado Velázquez-Benítez, Rodrigo Amezcua, Juan Hernández-Cordero, Daniel A. May-Arrioja   +5 more
doaj   +1 more source

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

Photonics, 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, Elena A. Anashkina, Olga N. Egorova, Sergey G. Zhuravlev, Sergei L. Semjonov, Arkady V. Kim, Alexander G. Litvak, Alexey V. Andrianov   +7 more
doaj   +1 more source

Spatially and spectrally resolved multicore optical fiber sensor with polarization sensitivity

AIP 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

Frontiers 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, Svetislav Savović, Wenjing Dai, Alexandar Djordjevich, Konstantinos Aidinis, Zheng Li, Rui Min   +6 more
doaj   +1 more source

Dual-Parameter Sensing With a Single Supermode Interferometer

Frontiers 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, Joel Villatoro, Joel Villatoro   +2 more
doaj   +1 more source

Microwave Signal Processing over Multicore Fiber

Photonics, 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, David Barrera, Javier Hervás, Salvador Sales, Ivana Gasulla   +4 more
doaj   +1 more source