Comparison of fast quality of transmission estimation methods for C+ L+ S optical systems

A Souza, N Costa, J Pedro, J Pires - Journal of Optical …, 2023 - opg.optica.org
Due to the high potential of multi-band transmission (MBT) systems as a short-to medium-
term solution to the ever-increasing demand for fiber capacity, one of the recent areas of …

Inter-Channel Interference Cancellation for Long-Haul Superchannel System

Z He, K Vijayan, A Mirani, M Karlsson… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Optical frequency combs enable superchannel systems with dense channel spacing by
providing equally-spaced lines to overcome the relative frequency drifts of free-running …

Frequency-domain adaptive MIMO filter with fractional oversampling using stochastic gradient descent for long-haul transmission over coupled 4-core fibers

M Arikawa, K Hayashi - Optics express, 2023 - opg.optica.org
We propose a fractionally spaced frequency-domain adaptive multi-input multi-output
(MIMO) filter architecture in which the sampling rate of input signals is below 2× …

Experimental demonstration of linear inter-channel interference estimation based on neural networks

A Hraghi, L Minelli, A Nespola… - IEEE Photonics …, 2023 - ieeexplore.ieee.org
In this paper, an algorithm for the estimation of the linear inter-channel crosstalk in a dense-
WDM polarization-multiplexed 16-QAM transmission scenario is proposed and …

High-density optical interconnects based on self-imaging in coupled waveguide arrays

J Petrovic, J Kršić, A Maluckov, JJP Veerman - Optics & Laser Technology, 2023 - Elsevier
Rapidly increasing demand for higher data bandwidths has motivated exploration of new
communication channels based on spatially multiplexed in-fibre and on-chip coupled light …

Routing, modulation format, spatial lane, and spectrum block assignment in static spatial channel networks

X Yang, Y Zhou, Q Sun - Applied Sciences, 2023 - mdpi.com
Spatial channel networks (SCNs) and related key technologies have been proposed to
increase the capacity and flexibility of optical networks. We define the network resource …

Spectral modeling and experimental validation of optical domain equalization for filtering mitigation

Y Du, W Yu, Y Lu, H Shi, X Chen… - 2023 21st International …, 2023 - ieeexplore.ieee.org
Spectral modeling and experimental validation of optical domain equalization for filtering
mitigation Page 1 Spectral modeling and experimental validation of optical domain …

Digital Coherent Receiver Enabling Nyquist Wavelength Demultiplexing Under Frequency Offset and Receiver-Side IQ Impairments

T Kuno, Y Mori, H Hasegawa - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Nyquist WDM systems generally use non-adaptive digital filters with sharp cut-off
characteristics to extract the target wavelength signal. Unfortunately, wavelength division …

Wavelength division demultiplexing of Nyquist WDM signals under frequency offset and receiver-side IQ impairments

T Kuno, Y Mori, H Hasegawa - 49th European Conference on …, 2023 - ieeexplore.ieee.org
The interaction among wavelength division demultiplexing (WDD), frequency offset
estimation, and receiver-side IQ impairment compensation in Nyquist WDM systems is …

Low power digital signal processing-lite scheme for short-reach polarization demultiplexing-64 quadrature amplitude modulation coherent optical system

Q Li, W Ji, P Li, P Liu, F Liu, Y Wang… - Optical …, 2023 - spiedigitallibrary.org
Coherent optical communication critically relies on efficient digital signal processing (DSP).
We demonstrate a lite DSP scheme to reduce the transmission cost and power consumption …