Results 161 to 170 of about 7,545,238 (204)

Self- coherent optical OFDM: An interesting alternative to direct or coherent detection

2011 13th International Conference on Transparent Optical Networks, 2011
Recently, coherent optical orthogonal frequency division multiplexing (CO-OFDM) has been considered for the next generation 400-Gb/s long haul data transmission. For long haul transmission systems coherent detection is beneficial compared to direct detection as it provides higher sensitivity.
Adhikari, S., Jansen, S.L., Alfiad, M.S., Inan, B., Sleiffer, V.A.J.M., Lobato, A., Leoni, P., Rosenkranz, W.   +7 more
exaly   +3 more sources

Complementary Polarization-Diversity Coherent Receiver for Self-Coherent Homodyne Detection With Rapid Polarization Tracking

Journal of Lightwave Technology, 2022
There has been renewed interest in coherent detection to provide high spectral efficiency transmission for short-reach optical interconnects. However, the expensive high-stable laser sources may preclude its potential application.
Jingchi Li, Zhaopeng Xu, Shuangyu Dong
exaly   +4 more sources

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Self-Coherent Detection in Multicore Fiber Systems Impaired by Intercore Crosstalk

2023 23rd International Conference on Transparent Optical Networks (ICTON), 2023
Isiaka A Alimi, Tiago M F Alves, Adolfo V T Cartaxo   +2 more
exaly   +3 more sources

Sensitivity improvement using amplified optical self-coherent detection in an optical OFDM system

2009 IEEE LEOS Annual Meeting Conference Proceedings, 2009
We proposed and analyzed an amplified self-coherent detection scheme by extracting and amplifying the optical carrier in an optical OFDM receiver. Simulation results exhibit about 6-dB OSNR sensitivity improvement over traditional direct-detected OFDM receiver.
Kai-Ming Feng, Wei-Ren Peng
exaly   +2 more sources

Virtual Carrier Assisted Self-Coherent Detection Employing DC-Value Method

Optical Fiber Communication Conference (OFC) 2021, 2021
We experimentally demonstrate for the first time the performance of the DC-Value (DC-V) phase recovery method in direct-detection optical links. It offers greater than 13% BER improvement in QPSK transmission compared to state-of-art upsampling-free methods.
Romil K. Patel, Fernando P. Guiomar, Marco A. Fernandes, Isiaka A. Alimi, Paulo P. Monteiro, Nelson J. Muga, Armando N. Pinto   +6 more
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Self-coherent optical detection for access and metro networks

2019 21st International Conference on Transparent Optical Networks (ICTON), 2019
The 5G-enabled mobile services along with other broadband services will bring unprecedented bandwidth demand on optical networks. In this context, access and optical metropolitan networks will be at the heart of surging demand for high bandwidth, more flexibility, and reduced cost per unit bandwidth.
Nelson J. Muga, Romil K. Patel, Isiaka A. Alimi, Nuno A. Silva, Armando N. Pinto   +4 more
openaire   +2 more sources

Initial results in using a self-coherence method for detecting sustained oscillations

2015 IEEE Power & Energy Society General Meeting, 2015
This paper develops a self-coherence method for detecting sustained oscillations using phasor measurement unit (PMU) data. Sustained oscillations decrease system performance and introduce potential reliability issues. Timely detection of the oscillations at an early stage provides the opportunity for taking remedial reaction.
Ning Zhou, Jeff Dagle
openaire   +1 more source