Optical Telecommunications - 2Virtual room: Photons Canada - 4
|Wednesday, May 27|
OT-2-27-1 / A Mode-locked Quantum Dash Laser with an Aggregate 5.376 Tbit/s PAM-4 Transmission Capacity
* Guocheng Liu, National Research Council Canada, Canada
Zhenguo Lu, National Research Council Canada
Jiaren Liu, National Research Council Canada
Youxin Mao, National Research Council Canada
Martin Vachon, National Research Council Canada
Pedro Barrios, National Research Council Canada
Philip J. Poole, National Research Council Canada
This paper presents an InAs/InP quantum dash (QD) C-band passively mode-locked laser (MLL) with a channel spacing of 34.224 GHz. By using this QD-MLL we demonstrate an aggregate 5.376 Tbit/s PAM-4 data transmission capacity both for back-to-back (B2B) and over 25-km of standard single mode fiber (SSMF). This finding highlights the viability for InAs/InP QD lasers to be used as a low-cost optical source for data center networks.
OT-2-27-2 / A deep neural network model for link failure identification in multi-path ROADM based networks
* Denis Y. Shimizu, University of Campinas - UNICAMP
Kayol Soares Mayer, University of Campinas - UNICAMP
Jonathan Aguiar Soares, University of Campinas - UNICAMP
Dalton Soares Arantes, University of Campinas - UNICAMP, Brazil
Critical telecommunications infrastructures, such as the modern Datacenters and 5G networks, require a reconfigurable optical add/drop multiplexer (ROADM) optical network (ON) backbone with high availability. In such ONs, the reduction of the time to identify and repair failures is very important. As this process involves the analysis of a large amount of data, machine learning techniques become essential to identify network faults. In this work, we use a deep neural network (DNN) model to identify the presence of failures in a complex multi-route ON. Preliminary evaluation tests achieved 85% accuracy in the identification of failures in a given link using DNNs.
OT-2-27-3 / Laser-based high bit-rate visible light communications and underwater optical wireless network
* Chao Shen, SaNoor Technologies Inc., United States
This talk presents an overview of the latest visible light communication (VLC) and underwater wireless optical communication (UWOC) research and development from the device to the system level. The utilization of laser-based devices and systems for LiFi and underwater Internet of Things (IoT) has been discussed. Last decade witnessed the rapid growth of research in laser-based VLC and UWOC systems due to the variety of applications in which it can be deployed. These applications include high bit-rate wireless data links, secure communication, pipeline monitoring and inspection, oceanography studies, and environmental monitoring. The conventional acoustic communications cannot meet the bandwidth demands in many underwater applications, such as live video streaming, and they also suffer from high latency. In this talk, a progress review of the transmitters, receivers, modulation schemes, and multiplexing technologies towards 100 Gbps VLC and UWOC systems will be presented. I’ll also discuss the technology and approaches to establish optical wireless network in actual undersea environments, especially in highly turbid channels.
OT-2-27-4 / Multi-Tb/s hybrid optical communications architecture using novel multiplexing and modulation schemes
* Syed Murshid, Florida Institute of Technology, United States
Swaroopini Harish, Florida Institute of Technology
Ce Su, Florida Institute of Technology
Tianyi Bi, Florida Institute of Technology
Abdullah Alsuhaymi, Florida Institute of Technology
Ibrahim Barka, Florida Institute of Technology
Marilyn Morgan, Florida Institute of Technology
Bilas Chowdhury, Florida Institute of Technology
Saud Alanzi, Florida Institute of Technology
Mingxuan Tu, Florida Institute of Technology
A novel hybrid architecture combining spatial domain multiplexing (SDM), orbital angular momentum (OAM) of photon-based multiplexing, wavelength-division multiplexing (WDM), and 4-level pulse-amplitude modulation (PAM4) is presented to achieve multi-Tb/s serial data transmission rates in single-core optical fibers.
OT-2-27-5 / Digital Polarization Impairments Emulator for Built-in Testing of Coherent Optical Receivers
* Ahmad Abdo, University of Ottawa, Canada
Claude D'Amours, University of Ottawa
In this paper, we propose a digital built-in emulator of polarization-dependent impairments in the transmitter of a coherent optical transponder. The circuit uses a multiple-input multiple output (MIMO) filter structure with high-resolution to inject random or deterministic state of polarization (SOP) transients, polarization dependent loss (PDL) and polarization mode dispersion (PMD) for testing and verification purposes.
OT-2-27-6 / 3D printed suspended-core polypropylene fiber for THz communication system
Guofu Xu, Ecole Polytechnique de Montreal, Canada
Kathirvel Nallappan, Ecole Polytechnique de Montreal
* Yang Cao, Ecole Polytechnique de Montreal
Maksim Skorobogatiy, Ecole Polytechnique de Montreal
A suspended-core polypropylene (PP) fiber for Terahertz (THz) communication system has been designed and fabricated by Fused Deposition Modeling (FDM) technique. The maximization process of model transparency with standard 3D printer is mainly presented. Two fibers printed successfully by standard and infinite 3D printer are presented at the end.
OT-2-27-7 / Centralized Millimeter-Wave Opto-Electronic Oscillator
* Mehmet Alp Ilgaz, University of Ljubljana, Slovenia
Andrej Lavric, University of Ljubljana
Bostjan Batagelj, University of Ljubljana
Matjaz Vidmar, University of Ljubljana
The next-generation 5G and 6G radio access networks (RANs) require high-purity millimeter-wave (mm-W) signals to improve the bit rate. We present a system based on an opto-electronic oscillator (OEO) to generate the low-phase noise signal for up- and down-conversion that does not require a local oscillator at the base-station. The proposed system will improve the requirements of next-generation RANs. We review the state of the art and new results from the development of a single-loop OEO in the central-station of a RAN.
OT-2-27-8 / 3D Printed Two-wire Terahertz Waveguide
* Yang Cao, Polytechnique Montréal, Canada
Kathirvel Nallappan, Polytechnique Montréal
Hichem Guerboukha, Polytechnique Montréal
Maksim Skorobogatiy, Polytechnique Montréal
We present a 3D printed two-wire plasmonic Terahertz waveguide and studied using both theoretical and experimental results. The plasmonic waveguide is fabricated by metalizing a 3D-printed structure in the form of wires that is encapsulated by a cage. The proposed waveguide features the transmission loss of 5 m^(-1) around the frequency of 140 GHz as well as near zero dispersion in the broad frequency range. The presence of cage around the metallized wires is used for the purpose of alignment with other standard optical devices and also to assemble several similar waveguide sections for a long waveguide link. Due to compact structure and low insertion loss, the 3D printed two wire waveguide shows great potential in the development of THz integrated circuits.