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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
openaire   +2 more sources

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   +4 more
openaire   +1 more source

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
openaire   +3 more sources

Multimodal endo-microscopy using multimode fibers

Imaging and Applied Optics Congress, 2020
We present and discuss the recent advances to use multimode fibers for multimodal endo-microscopy and its implementation for in-vivo imaging.
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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   +3 more
openaire   +1 more source

Imaging using multimode fibers

Optics in the Life Sciences, 2013
We demonstrate high resolution fluorescent imaging using multimode fibers in conjunction with Digital Phase Conjugation to undo the randomness of the light propagation within the multimode fibers. High-resolution images of stained biological samples are presented.
Ioannis N. Papadopoulos   +3 more
openaire   +1 more source

Multimode Fiber Gyroscopes

1982
We have recently shown [1] that the basic reciprocity requirements [2,3] for sensitive fiber gyros can be met in single mode systems in which the usual polarized light source is replaced by an unpolarized source, and that certain other operational features also result which are of interest.
G. A. Pavlath, H. J. Shaw
openaire   +1 more source

Bidirectional multimode fiber interconnection

SPIE Proceedings, 2012
We summarize the properties of 850nm wavelength AlGaAs/GaAs-based transceiver chips, monolithically integrating vertical-cavity surface-emitting lasers (VCSELs) and metal-semiconductor-metal (MSM) or PIN-type (p-doped-intrinsic-n-doped) photodiodes. Different chip designs enable half- and full-duplex bidirectional optical interconnection at multiple
Rainer Michalzik   +2 more
openaire   +1 more source

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