Results 241 to 250 of about 1,575,897 (306)

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

Deep Learning for Estimating Deflection Direction of a Multimode Fiber From Specklegram

Journal of Lightwave Technology, 2020
This study presents a novel approach and proof-of-concept for measuring the deflection direction of a multimode fiber's tip through analysis of the shape and structure of speckle patterns.
Soroush Razmyar, M. Mostafavi
semanticscholar   +1 more source

High-Sensitivity Strain and Temperature Simultaneous Measurement Sensor Based on Multimode Fiber Chirped Long-Period Grating

IEEE Sensors Journal, 2020
A multimode fiber chirped long-period grating (MC-LPG) is proposed and studied as a sensor for simultaneous measurement of strain and temperature. This sensor consists of linear chirped multimode fiber and fixed-length single-mode fiber.
Shuo Zhang, Tao Geng, Shengjia Wang, Huiwen Niu, Xiang Li, Sifan Deng, Zemin Wang, Cuiting Sun, Yiwei Ma, Wenlei Yang, Weimin Sun, Libo Yuan   +11 more
semanticscholar   +1 more source

Multimode Fiber Interferometer Based on Graded-Index Polymer CYTOP Fiber

Journal of Lightwave Technology, 2020
In this article, we present an investigation of a multimode fiber interferometer based on a multimode gradient index perfluorinated polymer fiber. The interferometric response of the polymer fiber was investigated for fiber lengths of 20, 80, and 400 m ...
I. Chapalo, A. Theodosiou, K. Kalli, O. Kotov   +3 more
semanticscholar   +1 more source

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
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, K. Takenaga, S. Matsuo, K. Himeno   +3 more
openaire   +1 more source