A5011774216- Optical Network Technologies
- Advanced Photonic Communication Systems
- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Advanced Optical Network Technologies
- Blood Pressure and Hypertension Studies
- Semiconductor Lasers and Optical Devices
- Advancements in PLL and VCO Technologies
- Algebraic and Geometric Analysis
- Cardiovascular Syncope and Autonomic Disorders
- Image and Signal Denoising Methods
- Blind Source Separation Techniques
- Heparin-Induced Thrombocytopenia and Thrombosis
- Neural Networks and Applications
- COVID-19 Clinical Research Studies
- Sodium Intake and Health
- Hemodynamic Monitoring and Therapy
- Chaos-based Image/Signal Encryption
- Renal and Vascular Pathologies
- Photonic Crystal and Fiber Optics
Infineon Technologies (Canada)
2019-2022
Infinera (United States)
2021
University of Waterloo
2009-2014
Wilfrid Laurier University
2014
The design of application-specific integrated circuits (ASIC) is at the core modern ultra-high-speed transponders employing advanced digital signal processing (DSP) algorithms. This manuscript discusses motivations for jointly utilizing transmission techniques such as probabilistic shaping and sub-carrier multiplexing in coherent optical transmissions systems. First, we describe key-building blocks high-speed DSP-based working up to 800G per wave. Second, show benefits these methods terms...
An improved method for decomposition of random and deterministic jitter measurements using tail fitting the probability density function total is proposed. The currently employed techniques assume that tails tend to a Gaussian function. We show be inaccurate by deriving analytical expressions accurate asymptotic form cumulative distribution functions. In doing so, we prove approach multiplied term inversely proportional jitter. Monte Carlo simulations consisting combination components are...
We examine both theoretically and experimentally rapid polarization transients generated by mechanical impacts on dispersion compensation modules (DCMs). In our experiments, the transient response of output to sudden is found remain constant among successive measurements. That is, Stokes vector traces same path over Poincaré sphere provided that interval time between measurements less than associated with slow thermal drift fiber birefringence profile. Experimentally we can measure angular...
First demonstration of a real-time 100.4 GBd PCS-64QAM 2 800G coherent MODEM. A record transmission distance 1600 km is achieved for dual-carrier × 1.6 Tb/s channel over fully loaded commercial line system, with an OSNR margin in excess dB to the FEC threshold.
We employ a falling weight to generate high-frequency fluctuations in the polarization and PMD of commercial dispersion compensation modules observe that for low impact forces variation is nearly identical successive measurements.
Jitter can be generally modeled as a superposition of an unbounded random component that follows Gaussian distribution and bounded deterministic component. It is usually assumed the probability total jitter for very large values tends to purely distribution. The standard deviation this identical mean value related A mathematical justification assumption is, however, lacking in literature. In work, general asymptotic expression derived tail shown that, first order, expressed function divided...
Application-specific integrated circuit (ASIC) is at the core of modern ultra-high-speed transponders employing advanced digital signal processing (DSP) algorithms. Jointly to transmission techniques, such as probabilistic shaping and sub-carrier multiplexing, it enables high capacity coherent transmission. In this invited contribution, we present our recent data-rate × distance record with experimental all real-time 800G channel over 1000 km in full C-band.
This paper demonstrates that numerous calculations involving polarization transformations can be condensed by employing suitable geometric algebra formalism. For example, to describe mode dispersion and polarization-dependent loss, both the material birefringence differential loss enter as bivectors combined into a single symmetric quantity. Their frequency distance evolution, well of Stokes vector through an optical system, then each expressed compact expression, in contrast corresponding...
We present analytic expressions for the temporal autocorrelation functions (ACF's) of polarization mode dispersion (PMD) vector, squared differential group delay (DGD) and state (SOP) in hinge model stochastically varying hinges. also derive continuous limit ACF DGD. Our studies demonstrate that large time offsets, PMD vector approaches a constant value depends principally on DGD last fiber section but is affected to diminishing degree by preceding sections. show sinusoidal perturbations...
We simulate the time evolution of differential group delay (DGD) in a fiber link hinge model with series forecasting procedures, particular, autoregressive (AR) models Kalman filter, pattern imitation, and Taylor expansion. In these studies, furthest prediction horizon was attained AR accompanied by filter procedure. further discuss influence measurement noise on horizon. also apply methods to measured DGD 40 Gb/s links results.
We demonstrate that within the framework of hinge model, polarization mode dispersion (PMD) vector correlation function averaged over time and wavelength is only appreciably affected by position last hinge. Further, width found context a standard model to decrease nearly monotonically with number hinges. finally derive, through theoretical analysis, an upper bound for mean squared differential group delay fiber section in link terms function.
Abstract The multicanonical method is applied to the calculation of symbol error ratio (SER) as a function optical signal noise (OSNR) at receiver for polarization multiplexed quadrature phase shift keying (PM-QPSK) wavelength division (WDM) system. We improve upon previous calculations by including mode dispersion (PMD) and subsequently verifying numerical accuracy our calculations. Our studies demonstrate that acceptable can be achieved even when advancing through fiber with relatively...
We propose a method for determining the spatial position of fast polarization changes in WDM system. In particular, we demonstrate that PMD (polarization mode dispersion) vector and Stokes parameters each (wavelength division multiplexing) channel can be employed to find with an accuracy, shown less than 15% most simulated cases, sources rapid fluctuations link mean DGD (differential group delay) greater 15 ps. The technique also applied locate hinge positions provided only single is active...