Results 11 to 20 of about 26,178 (269)

Near-Infrared Luminescence and Single-Mode Laser Emission From Nd3+ Doped Compound Glass and Glass Microsphere

Frontiers in Materials, 2019
In this letter, an Nd3+-doped compound fluorosilicate glass was successfully fabricated with the method of melt-quenching. Under the excitation of a 808 nm laser, enhanced near-infrared photoluminescence emission at the range from 1,065 to 1,140 nm was ...
Xin Wang, Haiyan Zhao, Angzhen Li, Ke Tian, Gilberto Brambilla, Pengfei Wang, Pengfei Wang   +6 more
doaj   +1 more source

Special Issue on Advances in Dielectric Photonic Devices and Systems beyond the Visible

Applied Sciences, 2022
The impressive advances in dielectric photonics, integrated optics, and optical fiber-based systems are paving the way for increasingly challenging applications in wide research areas [...]
Francesco Prudenzano, Antonella D’Orazio, Maurizio Ferrari   +2 more
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A Novel Noise-Insensitive Chromatic Dispersion Estimation Method Based on Fractional Fourier Transform of LFM Signals

IEEE Photonics Journal, 2017
We propose a novel chromatic dispersion (CD) estimation method by fractional Fourier transformation of linear-frequency modulation (LFM) signals. This method can measure inband and outband CD without using extra spectrum or timeslot resourses.
Wanli Wang, Yaojun Qiao, Aiying Yang, Peng Guo   +3 more
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Polarization-Insensitive Phase-Transmultiplexing and Multicasting of CSRZ-OOK and 4 $\times$ RZ-BPSK to 4 $\times$ RZ-QPSK via XPM in a Birefringent PCF

IEEE Photonics Journal, 2014
By utilizing cross-phase modulation and birefringence, we demonstrated simultaneous polarization-insensitive phase-transmultiplexing and multicasting of a single 10-Gbaud CSRZ-OOK signal and 4 $\times$ 10-Gbaud RZ-BPSK signals to generate 4 $\times$ 10-
B. M. Cannon, T. Mahmood, W. Astar, P. Boudra, T. Mohsenin, Gary M. Carter   +5 more
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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
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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
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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
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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
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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

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
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