Results 161 to 170 of about 7,027 (218)

Multimode fiber coupler

Applied Optics, 1978
Two types of multimode fiber couplers made from plastic-clad fibers are described: (1) cross type couplers with coupling efficiencies from 30 dB to 50 dB depending on the crossover angle; and (2) parallel type couplers with low transmission loss and coupling efficiencies from 15 dB to 30 dB depending on the coupling length.
K, Ogawa, A R, McCormick
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Multimode inhomogeneous fiber couplers

Applied Optics, 1979
A numerical technique to obtain the wave behavior in tightly coupled multimode fibers with inhomogeneous indices is introduced in this paper. The specific problem of the coupling characteristics of two parallel multimode fibers whose index profile is parabolic is treated in detail. It was found that in spite of the fact that rather complicated coupling
C, Yeh, W P, Brown, R, Szejn
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Multimode optical fiber sensors

1995
Of the properties of light which can be conveniently modulated, phase and polarization information are immediately lost upon entering a multimode optical fiber. This leaves intensity as the only transmittable property available for use as a modulation sensitive parameter.
G. R. Jones, R. E. Jones, R. Jones
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Multimodal imaging through a multimode fiber

Opto-Acoustic Methods and Applications in Biophotonics IV, 2019
We present a ultra-thin system that combines optical resolution photoacoustic microscopy and fluorescence imaging based on a multimode fiber and a fiber optical hydrophone with only 250µm cross section.
Antonio Miguel M. Caravaca Aguirre, Sakshi Singh, Simon Labouesse, Rafael Piestun, Emmanuel Bossy   +4 more
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Nonlinear Waves in Multimode Fibers

2017
We overview recent advances in the field of nonlinear guided wave propagation in multimode fibers. It is only in recent years that the study of nonlinear optics in multimode fibers has experienced a revival of research interest. Nonlinear arrays of linearly coupled multicore fibers permit spatiotemporal reshaping and coherent combining of ultrashort ...
Barthélémy, Alain, Chekhovskoy, I., Sidelnikov, O., Reduyk, A., Rubenchik, A., Shtyrina, O., Fedoruk, M., Turitsyn, S., Zlobina, E., Kablukov, S., Babin, S., Krupa, K., Couderc, V., Tonello, A., Millot, G., Wabnitz, S.   +15 more
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Multiple fiber connectors for multimode fibers

Optics Communications, 1976
Abstract We report on a multiple fiber connector for multimode fibers with a low insertion loss of ⩽ 0.22 dB. The simple, standard photolithographic fabrication process involved can yield reproducibly the tight tolerances that are required for low loss connectors.
F. Auracher, K.-H. Zeitler
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Phase-Conjugate Multimode Fiber Gyro

Topical Meeting on Photorefractive Materials, Effects, and Devices, 1987
Modal scrambling is a source of noise and signal fading in fiber-optic gyros1 and therefore the best fiber-optic gyros use single-mode polarization preserving fiber and couplers2. Phase-conjugation can be used to correct for modal scrambling3-5 and to make fiber-optic gyros6-9.
I, McMichael, P, Beckwith, P, Yeh
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Multimode interference devices with single-mode–multimode–multimode fiber structure

Applied Optics, 2014
We present a single-mode-multimode-multimode (SMm) fiber structure with a few interesting device applications. Unlike the single-mode-multimode-single-mode (SMS) structure, SMm has the unique feature of more than one mode in the output fiber. A detailed physical understanding of the transmission properties, and the differences from the SMS structure ...
BHATIA, N, JOHN, J
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Results of experimental studies of multimode fiber Bragg gratings on multimode fibers

Infokommunikacionnye tehnologii, 2016
Nowadays fiber Bragg gratings (FBGs) are widely used in various devices and applications of fiber optics. They become a basic component for fiber optic sensor networks. The most of those both commercial and prototype fiber optic sensor systems are based on well-researched either singlemode or multimode regime of signal transmission over optical fibers.
A.V. Bourdine, A.A. Vasilets, V.A. Burdin, O.G. Morozov, A.M. Kafarova, A.Yu. Minaeva, N.L. Sevruk, I.I. Nureev, A.A. Kuznetzov, L.M. Faskhutdinov   +9 more
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Multimode Fibers for Compensating Intermodal Dispersion of Graded-Index Multimode Fibers

Journal of Lightwave Technology, 2004
This paper proposes a novel type of multimode dispersion compensation fiber (MM-DCF) by which the intermodal dispersion of multimode fibers (MMFs) can be effectively compensated. A theoretical model that precisely calculates the group velocities of a target MMF and its MM-DCF and the power coupling between the two fibers is applied to confirm the ...
N. Guan, K. Takenaga, S. Matsuo, K. Himeno   +3 more
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