A5079464144- Advanced Fiber Optic Sensors
- Advanced Photonic Communication Systems
- Corrosion Behavior and Inhibition
- Advanced Optical Sensing Technologies
- Semiconductor Lasers and Optical Devices
- Non-Destructive Testing Techniques
- Optical Network Technologies
- Structural Integrity and Reliability Analysis
- Optical Wireless Communication Technologies
- Railway Engineering and Dynamics
- Integrated Circuits and Semiconductor Failure Analysis
- Advanced Optical Network Technologies
- Infrastructure Maintenance and Monitoring
- Smart Grid Security and Resilience
- Indoor and Outdoor Localization Technologies
- Material Properties and Failure Mechanisms
- Geophysics and Sensor Technology
- Innovative concrete reinforcement materials
- Medical and Biological Sciences
- Myofascial pain diagnosis and treatment
- Smart Materials for Construction
- Advanced Fiber Laser Technologies
- Concrete Corrosion and Durability
- Geotechnical Engineering and Underground Structures
- Aerodynamics and Fluid Dynamics Research
NEC (United States)
2020-2022
Rutgers, The State University of New Jersey
2017-2021
Princeton University
2021
Rutgers Sexual and Reproductive Health and Rights
2018
To the best of our knowledge, we present first field trial distributed fiber optical sensing (DFOS) and high-speed communication, comprising a coexisting system, over an operation telecom network. Using probabilistic-shaped (PS) DP-144QAM, 36.8 Tb/s with 8.28-b/s/Hz spectral efficiency (SE) (48-Gbaud channels, 50-GHz channel spacing) was achieved. Employing DFOS technology, road traffic, i.e., vehicle speed density, were sensed 98.5% 94.5% accuracies, respectively, as compared to video...
We review recent advances in distributed fiber optic sensing (DFOS) and their applications. The scattering mechanisms glass, which are exploited for reflectometry-based DFOS, Rayleigh, Brillouin, Raman scatterings. These sensitive to either strain and/or temperature, allowing optical cables monitor ambient environment addition conventional role as a medium telecommunications. Recently, DFOS leveraged technologies developed telecommunications, such coherent detection, digital signal...
Distributed fiber optic sensing (DFOS) is a rapidly evolving field that allows the existing optical infrastructure for telecommunications to be reused wide-area sensing. Using backscattering mechanisms of glass—which includes Rayleigh, Brillouin, and Raman backscatter—it possible realize distributed vibration temperature sensors with good sensitivity at every position, spatial resolution determined by bandwidth interrogation signal. In this paper, we will review main technologies in...
For the first time, we demonstrate detection of vehicle speed, density, and road conditions using deployed fiber carrying high-speed data transmission, prove carriers' large-scale infrastructures can also be used as ubiquitous sensing networks.
Carbon fiber reinforced polymer (CFRP) matrix composite overwrap repair systems have been introduced and accepted as an alternative system for steel pipeline. This paper aimed to evaluate the mechanical behavior of damaged pipeline with CFRP using finite element (FE) analysis. Two different strategies, namely wrap patch repair, were considered. The responses under maximum allowable operating pressure (MAOP) was analyzed validated FE models. design parameters analyzed, including patch/wrap...
We demonstrated for the first time that geographic locations on deployed fiber cables can be determined accurately by using OTDR distances. The method involves vibration stimulation near and distributed optical sensing technology.
Abstract Majority of pipeline infrastructure are old and susceptible to possible catastrophic failures due fatigue. Timely maintenance is the key keep in serviceable safe condition. This paper proposed a Bayesian inference methodology based on observed crack growth measurements cycle data that predicts probability density failure after initially estimating equivalent initial flaw size (EIFS). The model was first developed one-dimensional problem plate with edge crack. Then expanded...
We demonstrate fiber optic sensing systems in a distributed sensor network built on existing telecom infrastructure to detect temperature, acoustic effects, vehicle traffic, etc. Measurements are also demonstrated with different topologies and simultaneously four routes one system.
We report the field trial results of monitoring abnormal activities near deployed cable with fiber-optic-sensing technology for protection. Detection and position determination events evaluating threat to is realized.
We report the distributed-fiber-sensing field trial results over a 5G-transport-network. A standard communication fiber is used with real-time AI processing for cable self-protection, cable- cut threat assessment and road traffic monitoring in long-term continuous test.
Distributed fiber optical systems (DFOS) allow deployed cables to monitor the ambient environment over wide geographic area. We review recent field trial results, and show how DFOS can be made compatible with passive networks (PONs).
By employing distributed fiber optic sensing (DFOS) technologies, field deployed cables can be utilized as not only communication media for data transmissions but also continuously monitoring of the physical phenomenon along entire route. The used to monitor ambient environment route covering a wide geographic area. With help artificial intelligence and machine learning (AI/ML) technologies on information processing, many applications developed over telecom networks. We review recent results...
This study focused on development and characterization of a multifunctional coating system for rail track applications, such as low solar absorption, long-term durability, corrosion resistance. Both laboratory field experiments were conducted using coated uncoated rails exposed to sunlight at various ambient temperatures evaluate the effectiveness in reducing temperature. The experimental results show that average temperature reduction provided by was 10–25°F, depending peak air measurement...
Distributed fiber optic sensing systems (DFOS) allow deployed cables to be media, not only dedicated function of data transmission. The cable can monitor the ambient environment over wide area for many applications. We review recent field trial results, and show how artificial intelligence (AI) help on application road traffic monitoring. results that periodic changes in hourly, daily, weekly seasonal.
We demonstrated for the first time that motor vehicle traffic and road capacity on multiple fiber routes can be monitored by using a distributed-fiber-optics-sensing system with photonic switch in-service telecom cables.