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Full-Text Articles in Engineering
An Order Of Magnitude Improvement In Optical Fiber Bandwidth Using Spatial Domain Multiplexing/Space Division Multiplexing (Sdm) In Conjunction With Orbital Angular Momentum (Oam), Syed H. Murshid, Saud F. Alanzi, Arnob Hridoy, Gregory L. Lovell, Gurinder Parhar, Abhijit Chakravarty, Bilas Chowdhury
An Order Of Magnitude Improvement In Optical Fiber Bandwidth Using Spatial Domain Multiplexing/Space Division Multiplexing (Sdm) In Conjunction With Orbital Angular Momentum (Oam), Syed H. Murshid, Saud F. Alanzi, Arnob Hridoy, Gregory L. Lovell, Gurinder Parhar, Abhijit Chakravarty, Bilas Chowdhury
Electrical Engineering and Computer Science Faculty Publications
Spatial Domain Multiplexing/Space Division Multiplexing (SDM) can increase the bandwidth of existing and futuristic optical fibers by an order of magnitude or more. In the SDM technique, we launch multiple single mode pigtail laser sources of same wavelength into a carrier fiber at different angles. The launching angles decide the output of the carrier fiber by allocating separate spatial locations for each channel. Each channel follows a helical trajectory while traversing the length of the carrier fiber, thereby allowing spatial reuse of optical frequencies. In this endeavor we launch light from five different single mode pigtail laser sources at different …
Analysis Of Spatial Domain Multiplexing/Space Division Multiplexing (Sdm) Based Hybrid Architectures Operating In Tandem With Wavelength Division Multiplexing, Syed H. Murshid, Gregory L. Lovell, Bilas Chowdhury, Arnob Hridoy, Gurinder Parhar, Abhijit Chakravarty, Saud F. Alanzi
Analysis Of Spatial Domain Multiplexing/Space Division Multiplexing (Sdm) Based Hybrid Architectures Operating In Tandem With Wavelength Division Multiplexing, Syed H. Murshid, Gregory L. Lovell, Bilas Chowdhury, Arnob Hridoy, Gurinder Parhar, Abhijit Chakravarty, Saud F. Alanzi
Electrical Engineering and Computer Science Faculty Publications
Spatial domain multiplexing (SDM) also known as space division multiplexing adds a new degree of photon freedom to existing optical fiber multiplexing techniques by allocating separate radial locations to different MIMO channels as a function of the input launch angle. These independent MIMO channels remain confined to the designated location while traversing the length of the carrier fiber, due to helical propagation of light inside the fiber core. The SDM technique can be used in tandem with other multiplexing techniques, such as time division multiplexing (TDM), and wavelength division multiplexing in hybrid optical communication schemes, to achieve higher optical fiber …
Sdm Propagation Model For Multiple Channels Using Ray Theory, Syed H. Murshid, Ebad Zahir, Abhijit Chakravarty
Sdm Propagation Model For Multiple Channels Using Ray Theory, Syed H. Murshid, Ebad Zahir, Abhijit Chakravarty
Electrical Engineering and Computer Science Faculty Publications
Spatial Domain Multiplexing (SDM) is a novel optical fiber multiplexing technique where multiple channels of the same wavelength are launched at specific angles inside a standard step index multimode carrier fiber. These channels are confined to specific locations inside the fiber and they do not interfere with each other while traversing the length of the fiber. Spatial filtering techniques are employed at the output end to separate, route and process the individual channels. These skew ray channels inside the SDM system follow a helical trajectory along the fiber. The screen projection of the skew rays resembles a circular polygon. A …
Sdm Propagation Model For Multiple Channels Using Electromagnetic Theory And Vortex Analysis, Syed H. Murshid, Ebad Zahir, Raka Biswas, Abhijit Chakravarty
Sdm Propagation Model For Multiple Channels Using Electromagnetic Theory And Vortex Analysis, Syed H. Murshid, Ebad Zahir, Raka Biswas, Abhijit Chakravarty
Electrical Engineering and Computer Science Faculty Publications
Spatial Domain Multiplexing (SDM) is a novel technique in optical fiber communications. Single mode fibers are used to launch Gaussian beams of the same wavelength into a multimode step index fiber at specific angles. Based on the launch angle, the channel follows a helical path. The helical trajectory is explained with the help of vortex theory. The electromagnetic wave based vortex formation and propagation is mathematically modeled for multiple channels and the results are compared against experimental and simulated data. The modeled output intensity is analyzed to show a relationship between launch angle and the electric field intensity.
Comparison Of Experimental And Mathematical Models Of Attenuation And Dispersion For Co-Propagating Helical Channels Of Same Wavelength In Optical Fibers, Syed H. Murshid, Abhijit Chakravarty
Comparison Of Experimental And Mathematical Models Of Attenuation And Dispersion For Co-Propagating Helical Channels Of Same Wavelength In Optical Fibers, Syed H. Murshid, Abhijit Chakravarty
Electrical Engineering and Computer Science Faculty Publications
Spatial reuse of optical frequencies in optical fibers is possible through a novel Spatial Domain Multiplexing (SDM) technique that enables simultaneous propagation of two or more spatially multiplexed channels of exactly the same wavelength by confining them to unique spatial locations inside the fiber. Spatial filtering techniques are employed at the output end to separate the individual optical channels. The SDM channels follow helical path inside the carrier fiber and do not interfere with each other. This paper presents electromagnetic wave based model to analyze two such co-propagating SDM channels and then compares the model predictions to experimental data. The …