Results 21 to 30 of about 9,866,202 (300)

Training Sequence-Based Chromatic Dispersion Estimation With Ultra-Low Sampling Rate for Optical Fiber Communication Systems

IEEE Photonics Journal, 2018
We present a novel method to estimate chromatic dispersion with ultra-low sampling rate based on training sequence. The under-sampling can be equivalent to over-sampling by splicing points with periodic sequence.
Yiwen Ma, Peng Guo, Aiying Yang, Lingwei Zhuang, Shaojian Guo, Yueming Lu, Yaojun Qiao   +6 more
doaj   +1 more source

Theoretical Analysis of Heat Distribution in Raman Fiber Lasers and Amplifiers Employing Pure Passive Fiber

IEEE Photonics Journal, 2020
In this paper, we study the thermal dissipation of Raman fiber laser and amplifier utilizing pure passive fiber as gain medium for the first time. Take into account the convective and conductive heat transferring process in the fiber, we consider the ...
Yizhu Chen, Tianfu Yao, Hu Xiao, Jinyong Leng, Pu Zhou   +4 more
doaj   +1 more source

Hardware-Efficient Phase Estimation for Digital Coherent Transmission With Star Constellation QAM

IEEE Photonics Journal, 2010
In order to build optical transmission systems for 100 Gb/s and above on a single wavelength division multiplexing channel, transition from quadrature phase-shift keying (QPSK) to higher quadrature amplitude modulation (QAM) formats seems to be ...
Sebastian Hoffmann, Christian Wördehoff, Ali Al-Bermani, Mohamed El-Darawy, Kidsanapong Puntsri, Ulrich Rückert, Reinhold Noé   +6 more
doaj   +1 more source

Simultaneous Measurement of Shape and Temperature in the Substrate-Attaching-Fibers Sensing System

IEEE Photonics Journal, 2017
We design a dual-parameter sensor which can simultaneously measure the shape and temperature in the substrate-attaching-fibers sensing system. Two kinds of fibers with different diameter are attached on a shape memory alloy wire substrate with an angle ...
Shiyuan Zhao, Jiwen Cui, Chaoqiang Yang, Zhenyang Ding, Jiubin Tan   +4 more
doaj   +1 more source

Optical Fiber Systems Are Convectively Unstable [PDF]

Physical Review Letters, 2008
We theoretically and experimentally evidence that fiber systems are convective systems since their nonlocal inherent properties, such as the dispersion and Raman effects, break the reflection symmetry. Theoretical analysis and numerical simulations carried out for a fiber ring cavity demonstrate that the third-order dispersion term leads to the ...
Mussot, Arnaud, Louvergneaux, E., Akhmediev, N., Reynaud, François, Delage, Laurent, Taki, M.   +5 more
openaire   +4 more sources

Multi-element fiber for space-division multiplexing

, 2013
A novel approach of using multi-element fiber (MEF) technology in space-division multiplexing (SDM) systems is presented. This paper reviews the progress in fabrication and characterization of MEF based both ultra-low crosstalk transmission and amplifier
V. J. F. Rancaño, May-Smith, T.C., Petropoulos, P., Jain, S., Richardson, D.J., T. C. May-Smith, S. Jain, J. K. Sahu, D. J. Richardson, P. Petropoulos, Sahu, J.K., Rancaño, V.J.F., A. Webb, Webb, A.   +13 more
core   +1 more source

On-Line Process Monitoring for Aero-Space Components Using Different Technologies of Fiber Optic Sensors During Liquid Resin Infusion (LRI) Process

Engineering Proceedings
The FLASH-COMP project aims to introduce novel inspection and monitoring technologies to develop a digital solution to predict defects during manufacturing, aiming to reach a zero-waste approach in composites manufacturing. Particularly, it’s studied the
Cristian Builes Cárdenas, Tania Grandal González, Arántzazu Núñez Cascajero, Mario Román Rodríguez, Rubén Ruiz Lombera, Paula Rodríguez Alonso   +5 more
doaj   +1 more source

Asymmetrical Fiber Mach–Zehnder Interferometer for Simultaneous Measurement of Axial Strain and Temperature

IEEE Photonics Journal, 2010
An asymmetrical fiber Mach-Zehnder interferometer (aFMZI) consisting of a fiber taper and a lateral-shifted junction is proposed and demonstrated to realize simultaneous measurement of axial strain and temperature.
Ping Lu, Qiying Chen
doaj   +1 more source

Parallel Transport Frame for Fiber Shape Sensing

IEEE Photonics Journal, 2018
This paper reports a reconstruction method to determine a 3-D space curve from the distributed strain by using the parallel transport frame. Parallel transport frame can efficiently eliminate the singularities and discontinuous point which appear in ...
Jiwen Cui, Shiyuan Zhao, Chaoqiang Yang, Jiubin Tan   +3 more
doaj   +1 more source

Performance Analysis of Fiber Attenuation in Passive Optical Networks [PDF]

, 2023
The introduction of Fiber Optics cables in broadband Internet distribution has been a game changer in bulk capacity delivery, speed, reliability and penetration. However, the uncurbed incessant existence of cuts and failures have threatened the growth of
Gbadebo, Adekunle O.; University of Lagos, John, Samuel N.; Nigerian Defence Academy, Amusan, Akinwumi A.; University of Lagos, Ibhaze, Augustus E.; University of Lagos   +3 more
core   +1 more source