Results 211 to 220 of about 2,768,398 (266)

Electrowetting switch for multimode optical fibers

Optical Fiber Communication, 1982
Lightwave communications networks may require highly reliable optical switches for multimode fibers. Such switches should have low loss, low cross talk, low power consumption, and low operating voltages. Three types of switch have been proposed: mechanical: electrooptic; and liquid crystal. Mechanical switches, which operate by moving either the fibers
J L, Jackel, S, Hackwood, J J, Veselka, G, Beni   +3 more
openaire   +2 more sources

Thermooptic coupler for multimode optical fibers

Applied Optics, 1985
The detailed theory is presented together with design considerations and recent experimental results for an electronically controllable directional coupler for multimode optical fibers. The device, based on plastic-clad silica fiber, is of exceptionally simple construction and compact size and is highly reliable.
N, Moll, D, Dolfi
openaire   +2 more sources

Wavelength multiplexing in multimode optical fibers

Applied Optics, 1977
The capacity of optical fiber transmission systems could be increased by multiplexing several signals at different wavelengths on each fiber. This paper considers various multiplex system designs that might be used with multimode fiber transmission systems.
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Pulse Broadening in Multimode Optical Fibers

Bell System Technical Journal, 1975
Closed-form expressions are obtained for the impulse response of graded-index fibers whose relative permittivity is a homogeneous function of the two transverse coordinates x, y, and for the impulse width in graded-index fibers whose profile departs slightly, but otherwise arbitrarily, from a square law.
openaire   +1 more source

Tapered enlarged ends in multimode optical fibers

Applied Optics, 1982
Radiation characteristics of multimode fibers with enlarged tapers were investigated on a number of samples obtained by varying the fiber drawing speed with a given law corresponding to a prefixed taper profile. The characterization of the fibers was made by near- and far-field intensity pattern measurements as well as by measuring the losses ...
Brenci M, Falciai R, Scheggi AM
openaire   +3 more sources

Multimode Fiber-Optic Accelerometers

SPIE Proceedings, 1984
A basic system is described, using a mechanically modulated reflected signal and a reference signal generated by photoluminescence for compensation of optical intensity variations. Three sensor designs are presented, two using geometrical effects and one using interferometric modulation of the signal.
Lars Jonsson, Bertil Hok
openaire   +1 more source

Multimode optical fiber network

SPIE Proceedings, 2011
This paper presents the multimode passive optical network for LAN (Local Area Network) application. These networks should be cheaper and more usable than single-mode structures. The paper presents possibilities of commercial application of multimode passive networks.
Elzbieta Beres-Pawlik, Grzegorz Budzyn, Grzegorz Lis   +2 more
openaire   +1 more source

Dispersive Multiplexing in Multimode Optical Fiber

Science, 2000
Recently developed ideas in the field of wireless communications suggest that the presence of scattering can be used to enhance, rather than degrade, the total information capacity of a transmission system. This concept is applied to data transmission over multimode optical fiber, and the result is an optical multiplexing that can increase the capacity
openaire   +2 more sources

Multimode fiber optic sensors

OCEANS 82, 1982
Sperry Research Center and Sperry Corporation have been actively developing fiber optic sensors for a variety of military and commercial applications. Multimode technology has been the preferred approach because appropriate fiber optic components are commercially available.
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Multimode fiber-optic interferometry

Applied Optics, 1980
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