Results 21 to 30 of about 27,466 (242)
APL Photonics, 2020 Standard multimode optical fibers normally support transmission over some 100 modes. Large differences in the propagation constant and the spatial distribution of distinct modes degrade the performance of phase-sensitive optical time-domain reflectometry
K. Markiewicz +8 more
doaj +1 more source
Modal dynamics in multimode fibers [PDF]
Journal of the Optical Society of America A, 2011 The dynamics of modes and their states of polarizations in multimode fibers as a function of time, space, and wavelength are experimentally and theoretically investigated. The results reveal that the states of polarizations are displaced in Poincare sphere representation when varying the angular orientations of the polarization at the incident light ...
Fridman, Moti +4 more
openaire +3 more sources
Multimode Graded Index Fiber with Random Array of Bragg Gratings and Its Raman Lasing Properties
Fibers, 2023 Light propagation in multimode fibers is known to experience various nonlinear effects, which are being actively studied. One of the interesting effects is the brightness enhancement at the Raman conversion of the multimode beam in graded index (GRIN ...
Alexey G. Kuznetsov +4 more
doaj +1 more source
Swept-source multimode fiber imaging
Scientific Reports, 2023 AbstractHigh-resolution compressive imaging via a flexible multimode fiber is demonstrated using a swept-laser source and wavelength dependent speckle illumination. An in-house built swept-source allowing for independent control of bandwidth and scanning range is used to explore and demonstrate a mechanically scan-free approach for high-resolution ...
B. Lochocki (Benjamin) +4 more
openaire +6 more sources
Orthogonal frequency-division multiplexing in wireless communication systems with multimode fiber feeds [PDF]
, 2001 The feasibility of using multimode fiber as an inexpensive cell feed in broad-band indoor picocellular systems is investigated in this paper. The performance of coded orthogonal frequency-division multiplexing (OFDM) for a variety of multimode fiber ...
Dixon, B.J., Iezekiel, S., Pollard, R.D.
core +1 more source
Deep Learning for Computational Mode Decomposition in Optical Fibers
Applied Sciences, 2020 Multimode fibers are regarded as the key technology for the steady increase in data rates in optical communication. However, light propagation in multimode fibers is complex and can lead to distortions in the transmission of information.
Stefan Rothe +3 more
doaj +1 more source
Evaluation of a multimode fiber optic low coherence interferometer for path length resolved Doppler measurements of diffuse light \ud [PDF]
, 2007 The performance of a graded index multimode fiber optic low coherence Mach-Zehnder interferometer with phase modulation is analyzed. Investigated aspects were its ability to measure path length distributions and to perform path length resolved Doppler ...
Babu Varghese +4 more
core +7 more sources
General theory and observation of Cherenkov radiation induced by multimode solitons
Communications Physics, 2021 The multifaceted nature of nonlinear multimode optical fibers has provided a fertile ground for observing novel physical effects otherwise impossible in single-mode setting.
M. A. Eftekhar +4 more
doaj +1 more source
Fast and accurate modelling of nonlinear pulse propagation in graded-index multimode fibers [PDF]
, 2017 We develop a model for the description of nonlinear pulse propagation in multimode optical fibers with a parabolic refractive index profile. It consists in a 1+1D generalized nonlinear Schr\"odinger equation with a periodic nonlinear coefficient, which ...
Arabi, Carlos Mas +3 more
core +4 more sources
Single multimode fiber endoscope
Optics Express, 2017 Multimode fibers can guide thousands of modes capable of delivering spatial information. Unfortunately, mode dispersion and coupling have so far prevented their use in endoscopic applications. To address this long-lasting challenge, we present a robust scanning fluorescence endoscope.
Caravaca-Aguirre, Antonio M +1 more
openaire +2 more sources