Results 51 to 60 of about 608,125 (335)

Polymer Waveguide Sensor Based on Evanescent Bragg Grating for Lab-on-a-Chip Applications

Sensors
In this work, an evanescent Bragg grating sensor inscribed in a few-mode planar polymer waveguide was integrated into microchannel structures and characterized by various chemical applications.
Zhenyu Zhang, Ahmad Abdalwareth, Günter Flachenecker, Martin Angelmahr, Wolfgang Schade   +4 more
doaj   +1 more source

Soliton Microcomb on Chip Integrated Si₃N₄ Microresonators with Power Amplification in Erbium-Doped Optical Mono-Core Fiber

Micromachines, 2022
Soliton microcombs, offering large mode spacing and broad bandwidth, have enabled a variety of advanced applications, particularly for telecommunications, photonic data center, and optical computation.
Xinpeng Chen, Suwan Sun, Weizhu Ji, Xingxing Ding, You Gao, Tuo Liu, Jianxiang Wen, Hairun Guo, Tingyun Wang   +8 more
doaj   +1 more source

Fiber Based Multiple-Access Optical Frequency Dissemination [PDF]

, 2013
We demonstrate a fiber based multiple-access optical frequency dissemination scheme. Without using any additional laser sources, we reproduce the stable disseminated frequency at an arbitrary point of fiber link. Relative frequency stability of 3E10^{-16}
Bai, Y., Gao, C., Miao, J., Wang, B., Wang, L. J., Zhu, X.   +5 more
core   +1 more source

Multimodal Autonomic Biomarkers Predict Phenoconversion in Pure Autonomic Failure

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Pure autonomic failure (PAF) presents with autonomic failure without other neurological features. A third develop central neurological features, fulfilling criteria for multiple system atrophy (MSA) and Lewy body diseases (LBD), including Parkinson's disease and Dementia with Lewy bodies.
S. Koay, E. Vichayanrat, F. Bremner, F. Valerio, R. Mackenzie, G. Chiaro, G. Ingle, P. McNamara, L. Watson, J. N. Panicker, M. P. Lunn, C. Mathias, V. Iodice   +12 more
wiley   +1 more source

Single Subcarrier Gold Sequences Modulated Timing Synchronization for Upstream OFDMA-PON

IEEE Photonics Journal, 2017
In this paper, we propose a timing synchronization scheme based on Gold sequences modulated on a single subcarrier for the orthogonal frequency-division multiple access passive optical network (OFDMA-PON).
Xizhen Peng, Jian Chen, Yingchun Li, Yingxiong Song   +3 more
doaj   +1 more source

On-chip silicon electro-optical modulator with ultra-high extinction ratio for fiber-optic distributed acoustic sensing

Nature Communications, 2023
Ultra-high extinction ratio (ER) optical modulation is crucial for achieving high-performance fiber-optic distributed acoustic sensing (DAS) for various applications.
Zhuo Cheng, Xiaoqian Shu, Lingmei Ma, Bigeng Chen, Caiyun Li, Chunlei Sun, Maoliang Wei, Shaoliang Yu, Lan Li, Hongtao Lin, Yunjiang Rao   +10 more
doaj   +1 more source

Exact performance analysis of a single-wavelength optical buffer with correlated inter-arrival times [PDF]

, 2010
Providing a photonic alternative to the current electronic switching in the backbone, optical packet switching (OPS) and optical bursts witching (OBS) require optical buffering.
Bruneel, Herwig, Fiems, Dieter, Laevens, Koenraad, Rogiest, Wouter   +3 more
core   +1 more source

Comparative Effect of Standard Versus Extended Interval Dosing of Rituximab or Ocrelizumab in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We aimed to investigate the comparative effectiveness of standard versus personalized extended interval dosing of anti‐CD20 therapy on clinical and sub‐clinical outcomes in multiple sclerosis. Methods Clinical information was collected prospectively on Research Electronic Data Capture.
Nabil K. El Ayoubi, Fares Fahd, Hani Tamim, Salem Hannoun, Mark Bal, Elham El‐Hallak, Samia J. Khoury   +6 more
wiley   +1 more source

Impact and Compensation of Electrical-to-Optical Frequency Response on Carrierless Phase Retrieval Receivers

IEEE Photonics Journal
On carrierless phase retrieval (PR) receivers based on direct detection, bandwidth limitation of electrical-to-optical (E/O) conversion at the transmitter side (Tx) distorts the modulated optical signal.
Qi Gao, Hanzi Huang, Zhengxuan Li, Ziyue Liu, Yuanzhe Qu, Yingxiong Song   +5 more
doaj   +1 more source

Integrating a QPSK Quantum Key Distribution Link [PDF]

, 2006
We present the integration of the optical and electronic subsystems of a BB84-QKD fiber link. A highspeed FPGA MODEM generates the random QPSK sequences for a fiber-optic delayed self-homodyne scheme using APD detectors.Comment: 2 pages, 4 figures ...
Agnolini, S., Danger, J-L., Gallion, P., Guilley, S., Mendieta, F. J., Silva, M. B. Costa e, Xu, Q.   +6 more
core   +2 more sources