Optical Telecommunications - 1Virtual room: COPL - 5
|Tuesday, May 26|
OT-1-26-1 / High Bitrate Terahertz Fiber Communications
* Kathirvel Nallappan, Ecole Polytechnique de Montreal, Canada
Yang Cao, Ecole Polytechnique de Montreal
Guofu Xu, Ecole Polytechnique de Montreal
Hichem Guerboukha, Ecole Polytechnique de Montreal
Chahe Nerguizian, Ecole Polytechnique de Montreal
Maksim Skorobogatiy, Ecole Polytechnique de Montreal
Currently, most of communications research in Terahertz spectral range is focused on wireless systems, while waveguide/fiber-based links have been less explored. Although free space communications have several advantages, the fiber-based communications provide superior performance in certain short-range communication applications. In this work, we study the use of subwavelength dielectric THz fibers for information transmission. Particularly, we use polypropylene-based rod-in-air subwavelength dielectric THz fibers of various diameters (0.57-1.75 mm) to study link performance as a function of the link length of up to ~10 m, and data bitrates of up to 6 Gbps at the carrier frequency of 128 GHz.
OT-1-26-2 / Performance Comparison of Ring-Core Fibers Support Propagation of OAM Modes
* Mai Banawan, Department of Electrical and Computer Engineering , COPL, Universite Laval, Canada
Lixian Wang, Huawei Technologies Canada Co., Ltd.
Sophie LaRochelle, Department of Electrical and Computer Engineering , COPL, Universite Laval
Leslie Ann Rusch, Department of Electrical and Computer Engineering , COPL, Universite Laval
We use a numerical coupling model and propagation to compare the performance of two fibers (thin and thick ring-core fibers). Numerical propagation results show different performance for the two fibers under the same level of core deformation. This different behavior requires distinct digital signal processing for the two types of fiber.
OT-1-26-3 / High data-rate and high-order DP-QAM optical links can be efficiently implemented with concurrent equalization
* Kayol S. Mayer, University of Campinas - UNICAMP
Veruska R. Moreira, University of Campinas - UNICAMP
Jonathan A. Soares, University of Campinas - UNICAMP
Dalton S. Arantes, University of Campinas - UNICAMP, Brazil
Optical communication systems operating with high data rates and dual-polarization are invariably disrupted by chromatic and polarization mode dispersions. Fixed filters usually mitigate chromatic dispersion, but polarization mode dispersion (PMD), due to its stochastic behavior, is normally reduced with adaptive filters, such as channel equalizers. In this context, this work proposes the use of concurrent blind equalization architectures with a butterfly structure to meet the challenge of designing next generation optical links.
OT-1-26-4 / 800Gb/s Transmission Using Probabilistic Constellation Shaping and Digital Subcarriers
* Han Sun, Infinera Canada, Canada
Mehdi Torbatian, Infinera Canada
Kuang-Tsan Wu, Infinera Canada
The combination of digital subcarrier multiplexing and probabilistic constellation shaping have emerged as the technology of choice when implementing optical transmission systems at the 800Gb/s. This manuscript reviews the digital signal processing techniques and benefits in fiber transmission.
OT-1-26-5 / Plasmonic Circuits for Optical Communications
* Amr S. Helmy, University of Toronto, Canada
Nanoscale Plasmonic waveguides provide the unique ability to confine light within a few nanometers and allow for near perfect transmission through sharp bends as well as efficient light distribution between orthogonally intersecting junctions. With these structures as a building block, new levels of optoelectronic integration and performance metrics for athermal transceivers with achievable bandwidths in excess of 500 Gbps as will be overviewed in this talk.