Digital longitudinal monitoring of optical fiber communication link
T Sasai, M Nakamura, E Yamazaki… - Journal of Lightwave …, 2021 - opg.optica.org
Optical transmission links are generally composed of optical fibers, optical amplifiers, and
optical filters. In this paper, we present a channel reconstruction method (CRM) that extracts …
optical filters. In this paper, we present a channel reconstruction method (CRM) that extracts …
Performance limit of fiber-longitudinal power profile estimation methods
T Sasai, E Yamazaki, Y Kisaka - Journal of Lightwave Technology, 2023 - opg.optica.org
This paper presents analytical results on longitudinal power profile estimation (PPE)
methods, which visualize signal power evolution in optical fibers at a coherent receiver. The …
methods, which visualize signal power evolution in optical fibers at a coherent receiver. The …
Flexible technologies to increase optical network capacity
Increased global traffic puts tough requirements not just on fiber communications links but
on the entire network. This manifests itself in multiple ways, including how to optimize …
on the entire network. This manifests itself in multiple ways, including how to optimize …
Design tradeoffs and challenges in practical coherent optical transceiver implementations
DA Morero, MA Castrillón, A Aguirre… - Journal of Lightwave …, 2016 - opg.optica.org
This tutorial discusses the design and ASIC implementation of coherent optical transceivers.
Algorithmic and architectural options and tradeoffs between performance and …
Algorithmic and architectural options and tradeoffs between performance and …
Spectral efficiency-adaptive optical transmission using time domain hybrid QAM for agile optical networks
We report the transmission of time domain hybrid QAM (TDHQ) signals for agile optical
networks. A continuous tradeoff between spectral efficiency and achievable distance by …
networks. A continuous tradeoff between spectral efficiency and achievable distance by …
Experimental demonstration of a format-flexible single-carrier coherent receiver using data-aided digital signal processing
R Elschner, F Frey, C Meuer, JK Fischer, S Alreesh… - Optics …, 2012 - opg.optica.org
We experimentally demonstrate the use of data-aided digital signal processing for format-
flexible coherent reception of different 28-GBd PDM and 4D modulated signals in WDM …
flexible coherent reception of different 28-GBd PDM and 4D modulated signals in WDM …
Time domain multiplexed spatial division multiplexing receiver
RGH Van Uden, CM Okonkwo, H Chen… - Optics express, 2014 - opg.optica.org
A novel time domain multiplexed (TDM) spatial division multiplexing (SDM) receiver which
allows for the reception of> 1 dual polarization mode with a single coherent receiver, and …
allows for the reception of> 1 dual polarization mode with a single coherent receiver, and …
Fast and robust blind chromatic dispersion estimation using auto-correlation of signal power waveform for digital coherent systems
We propose a chromatic dispersion (CD) estimation technique by using the auto-correlation
of signal power waveform for DSP based coherent systems. For single-carrier polarization …
of signal power waveform for DSP based coherent systems. For single-carrier polarization …
Advanced DSP techniques enabling high spectral efficiency and flexible transmissions: toward elastic optical networks
Advanced DSP Techniques Enabling High Spectral Efficiency and Flexible Transmissions:
Toward elastic optical networks Page 1 IEEE SIGNAL PROCESSING MAGAZINE [82] MARCh …
Toward elastic optical networks Page 1 IEEE SIGNAL PROCESSING MAGAZINE [82] MARCh …
Architecture of a single-chip 50 Gb/s DP-QPSK/BPSK transceiver with electronic dispersion compensation for coherent optical channels
DE Crivelli, MR Hueda, HS Carrer… - … on Circuits and …, 2013 - ieeexplore.ieee.org
The architecture of a single-chip dual-polarization QPSK/BPSK 50 Gigabits per second
(Gb/s) DSP-based transceiver for coherent optical communications is presented. The …
(Gb/s) DSP-based transceiver for coherent optical communications is presented. The …