Results 261 to 270 of about 1,575,897 (306)

A highly sensitive optical fiber strain sensor based on cascaded multimode fiber and photonic crystal fiber

Optical fiber technology (Print), 2019
A highly sensitive optical fiber strain sensor is presented in this work. The structure of the device consists of cascaded multimode fiber (MMF) and photonic crystal fiber (PCF), fusion spliced with single mode fiber (SMF) at both of its ends.
Fan Yang, Z. K. Wang, Daodang Wang
semanticscholar   +1 more source

Bending diameter dependence of mode instabilities in multimode fiber amplifier

Laser Physics Letters, 2019
We systematically investigated the dependence of mode instability (MI) thresholds on bending diameters in ytterbium-doped fiber amplifiers. The MI thresholds of a fiber amplifier, which was based on a multimode ytterbium-doped fiber, were measured at ...
Fangfang Zhang, Haozhen Xu, Yingbin Xing, Shaodong Hou, Yisha Chen, Jinyan Li, N. Dai, Haiqing Li, Yi-bo Wang, Lei Liao   +9 more
semanticscholar   +1 more source

High-Spectral-Efficiency Mode-Multiplexed Transmission Over Graded-Index Multimode Fiber

European Conference on Optical Communication, 2018
We demonstrate mode-multiplexed $90\times 90$ MIMO transmission over all nine mode groups of a 26.5-km graded-index multimode fiber span, achieving a record spectral efficiency of 202 bit/s/Hz.
R. Ryf, N. Fontaine, S. Wittek, Karthik Choutagunta, M. Mazur, Haoshuo Chen, J. C. Alvarado-Zacarias, R. A. Correa, M. Cappuzzo, R. Kopf, A. Tate, H. Safar, C. Bolle, D. Neilson, E. Burrows, K. Kim, M. Bigot-Astruc, F. Achten, P. Sillard, A. A. Correa, J. Kahn, J. Schröder, J. Carpenter   +22 more
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Multimode Fiber Data Communication

OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference, 2008
The article consists of a Powerpoint presentation on multimode fiber link basics; multimode fiber impulse response and modal bandwidth; equalized links; non-equalized links; ISI penalty; equalization penalty; VCSEL structure; multimode fiber connectors; multimode fiber IPR classification; and multimode fiber capacity.
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

All-fiber passively mode-locked laser using nonlinear multimode interference of step-index multimode fiber

Photonics Research, 2018
We experimentally demonstrate for the first time, to the best of our knowledge, an all-fiber passively mode-locked laser operation based on the nonlinear multimode interference of step-index multimode fiber.
Tao Chen, Qiao-Man Zhang, Yaping Zhang, Xin Li, Haikun Zhang, W. Xia   +5 more
semanticscholar   +1 more source

Multimode fiber based endoscope

Frontiers in Optics 2013, 2013
We propose a high-resolution lensless endoscope based on a multimode fiber and digital scanning. Taking advantage of the high number of degrees of freedom allows for an ultra-thin rigid endoscope with a sub-micron resolution.
Salma Farahi, Ioannis Papadopoulos, Christophe Moser, Demetri Psaltis   +3 more
openaire   +1 more source

Evolution of noise-like pulses in mode-locked fiber laser based on straight graded-index multimode fiber structure

, 2021
Tao Chen, X. Wei, Xin Zhang, Lijuan Chen, Yuhu Ren, Feng Peng, Haikun Zhang, W. Xia   +7 more
semanticscholar   +1 more source

Bandwidth-enhanced multimode fiber

Optical Engineering, 2007
By designing multiple single-mode cores across the multimode fiber core area, this new multimode fiber can support only the fundamental mode or fewer low-order modes propagation to some extent. Therefore, the modal dispersion of the multimode fiber has been suppressed greatly, and the bandwidth is enhanced 6.5 times.
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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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