Results 41 to 50 of about 5,993 (258)
Convolutional neural network for quality of transmission prediction of unestablished lightpaths
Microwave and Optical Technology Letters, Volume 63, Issue 10, Page 2461-2469, October 2021., 2021 Abstract With the advancement in evolving concepts of software‐defined networks and elastic‐optical‐network, the number of design parameters is growing dramatically, making the lightpath (LP) deployment more complex. Typically, worst‐case assumptions are utilized to calculate the quality‐of‐transmission (QoT) with the provisioning of high‐margin ...
Fehmida Usmani +5 more
wiley +1 more source
IEEE Photonics Journal, 2019 A joint and accurate optical signal-to-noise ratio (OSNR) estimation and modulation formats identification (MFI) scheme based on the artificial neural network (ANN) is proposed and demonstrated via both simulation and the experiment system.
Qian Xiang +3 more
doaj +1 more source
On-Chip OSNR Monitoring With Silicon Photonics Transparent Detector [PDF]
IEEE Photonics Technology Letters, 2017 Non-invasive integrated detectors, named contactless integrated photonic probe (CLIPP), are employed to demonstrate on-chip noise-independent power monitoring of optical channels and in-band optical signal to noise ratio (OSNR) measurement. The proposed technique is based on a two-step lock-in demodulation of optical signals that are suitably labeled ...
OLIVEIRA MORAIS DE AGUIAR, DOUGLAS +6 more
openaire +3 more sources
Plant Biotechnology Journal, Volume 19, Issue 4, Page 785-800, April 2021., 2021 Summary Cassava bacterial blight (CBB) caused by Xanthomonas axonopodis pv. manihotis (Xam) seriously affects cassava yield. Nitrate reductase (NR) plays an important role in plant nitrogen metabolism in plants. However, the in vivo role of NR and the corresponding signalling pathway remain unclear in cassava.
Yu Yan +9 more
wiley +1 more source
Wavelength conversion for WDM communication systems using four-wavemixing in semiconductor optical amplifiers [PDF]
, 1997 Four-wave mixing (FWM) in semiconductor optical amplifiers is an attractive mechanism for wavelength conversion in wavelength-division multiplexed (WDM) systems since it provides modulation format and bit rate transparency over wide tuning ranges.
Geraghty, David F. +5 more
core +1 more source
IEEE Photonics Journal, 2019 We propose and experimentally demonstrate a novel cost-effective and distributed in-band optical signal-to-noise ratio (OSNR) monitoring method using a widely tunable optical bandpass filter and optical power measurements, which employs the Gaussian ...
Chunjie Hu +5 more
doaj +1 more source
Colorless devices and reception techniques for polarization multiplexed communications [PDF]
, 2015 Future optical networks call for flexible, high performance and low cost coherent optical receivers. We present here several advances towards such receivers, including integrated optical couplers with ultra-broad bandwidth, as well as novel reception ...
Alonso-Ramos, C. +8 more
core +1 more source
IEEE Access, 2020 A novel few-mode multi-core (FMMC) optical fiber transmission system based on probabilistic shaping (PS) with low complexity multiple-input multiple-output (MIMO) equalization method is proposed and demonstrated in this paper.
Songsong Qu +7 more
doaj +1 more source
Electronic equalization for advanced modulation formats in dispersion-limited systems [PDF]
, 2004 We investigate in this letter the use of electronic equalization on dispersion limited systems for different modulation formats. Besides analyzing equalization on standard NRZ intensity modulation as a reference, we focus on two advanced modulation ...
Curri, Vittorio +3 more
core +1 more source
Photonics, 2022 Relative intensity noise (RIN) is an important factor that determines the performance of optical phased arrays (OPA) that are configured using semiconductor lasers as light emission sources. This study proposes a method of improving the optical signal-to-
Anh-Hang Nguyen, Hyuk-Kee Sung
doaj +1 more source