Results 21 to 30 of about 491,185 (233)

Design of Spatial-Mode (De)Multiplexer for Few-Mode Fibers Based on a Cyclically Used Michelson-Like Interferometer

open access: yesApplied Sciences, 2020
Few mode optical fibers are a promising way to continue increasing the data rate in optical communications. However, an efficient method to launch and extract separately each mode is essential. The design of a interferometric spatial mode (de)multiplexer
Xesús Prieto-Blanco   +5 more
doaj   +1 more source

Few-mode elastomeric optical fibers

open access: yesOptical Materials Express, 2021
We present a new approach for producing elastomeric optical fibers with an optical behaviour corresponding to a few-mode optical fiber. Different fibers have been produced by first fabricating thermoplastic polyurethane preforms and subsequently drawing them.
Miguel Llera   +7 more
openaire   +1 more source

Autocompensating Measurement-Device-Independent quantum cryptography in few-mode optical fibers [PDF]

open access: yesEPJ Web of Conferences, 2020
We present an autocompensating quantum cryptography technique for Measurement-Device-Independent quantum cryptography devices with different kind of optical fiber modes.
Liñares-Beiras Jesús   +3 more
doaj   +1 more source

Few-Mode Fiber Characterization System Based on the Spatially and Spectrally Imaging Technique

open access: yesSensors, 2022
With the widespread use of few-mode fibers, mode characteristics testing becomes essential. In this paper, current few-mode fiber testing techniques are discussed, and the S2 imaging technique is chosen and demonstrated to be capable of few-mode fiber ...
Jianxun Yu, Fengze Tan, Changyuan Yu
doaj   +1 more source

Measuring modal delays of few-mode fibers using frequency-domain method

open access: yes, 2021
A simple and robust frequency-domain method for measuring modal delays of few-mode fibers is presented. The method utilizes the inverse Fourier transform of a measured complex transfer function to determine modal delays between different modes.
Kangmei Li   +4 more
semanticscholar   +1 more source

Learning to decompose the modes in few-mode fibers with deep convolutional neural network. [PDF]

open access: yesOptics Express, 2018
We introduce a deep-learning technique to perform complete mode decomposition for few-mode optical fibers for the first time. Our goal is to learn a fast and accurate mapping from near-field beam patterns to the complete mode coefficients, including both
Yi An   +5 more
semanticscholar   +1 more source

Sub-sampled modal decomposition in few-mode fibers.

open access: yesOptics Express, 2021
Retrieving modal contents from a multimode beam profile can provide the most detailed information of a beam. Numerical modal decomposition is a method of retrieving modal contents, and it has gained significant attention owing to its simplicity.
Kyuhong Choi, C. Jun
semanticscholar   +1 more source

Characterization of Few Mode Fibers by OLCI Technique [PDF]

open access: yes, 2014
International audienceAll LP modes of a few mode fiber are simultaneously characterized using phase-sensitive optical low-coherence interferometry. The differential modal group delay and absolute chromatic dispersion values of each mode are retrieved ...
Gabet, R.   +7 more
core   +3 more sources

Monolithic mode-selective few-mode multicore fiber multiplexers

open access: yesScientific Reports, 2017
AbstractWith the capacity limits of standard single-mode optical fiber fast approaching, new technologies such as space-division multiplexing are required to avoid an Internet capacity crunch. Few-mode multicore fiber (FM-MCF) could allow for a two orders of magnitude increase in capacity by using the individual spatial modes in the different cores as ...
Riesen, N.   +4 more
openaire   +9 more sources

Few-Mode Lensed Fibers

open access: yesJournal of Lightwave Technology, 2018
Few-mode lensed fiber for focusing multiple spatial modes with minimal distortion are proposed and investigated numerically and experimentally, for the first time to the best of the authors’ knowledge. Although the conventional hyperbolic lens profile works effectively for the fundamental mode, it introduces severe distortion for high-order radial ...
He Wen   +6 more
openaire   +2 more sources

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