Optical Fiber Multiplexing and Emerging Techniques

Optical Fiber Multiplexing and Emerging Techniques

Author: Syed H Murshid

Publisher: Morgan & Claypool Publishers

Published: 2018-10-01

Total Pages: 134

ISBN-13: 1681745690

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This book begins with the history and fundamentals of optical fiber communications. Then, briefly introduces existing optical multiplexing techniques and finally focuses on spatial domain multiplexing (SDM), aka space division multiplexing, and orbital angular momentum of photon based multiplexing. These are two emerging multiplexing techniques that have added two new degrees of photon freedom to optical fibers.


Wavelength-Division Multiplexing

Wavelength-Division Multiplexing

Author: Kevin Roebuck

Publisher: Tebbo

Published: 2011-06

Total Pages: 0

ISBN-13: 9781743044216

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In fiber-optic communications, wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (colours) of laser light. This technique enables bidirectional communications over one strand of fiber, as well as multiplication of capacity. This book is your ultimate resource for Wavelength-Division Multiplexing (WDM). Here you will find the most up-to-date information, analysis, background and everything you need to know. In easy to read chapters, with extensive references and links to get you to know all there is to know about Wavelength-Division Multiplexing (WDM) right away, covering: Wavelength-division multiplexing, Optical fiber, Optical amplifier, Arrayed waveguide grating, Optical attenuator, Bend radius, Buffer (optical fiber), Cable jetting, Optical fiber cable, Chiral Photonics, Cladding (fiber optics), Cladding mode, ClearCurve, Cleave (fiber), Concentricity error, Core (optical fiber), Coupling loss, Cross-phase modulation, Cutback technique, Delay line interferometer, Distributed Bragg reflector, Distributed temperature sensing, Effective mode volume, Equilibrium mode distribution, Fanout cable, Fiber laser, Fiber Management System, Fiber optic coupler, Fiber optic sensor, Fiber pigtail, Fiberscope, Fizoptika, Fusion splicing, Glow plate, Gradient-index optics, Guided ray, Fibre optic gyroscope, Half Acceptance angle, George Hockham, Hydrogen darkening, Hydroxyl ion absorption, Index-matching material, Interconnect bottleneck, Narinder Singh Kapany, Kingfisher International Pty Ltd, Launch angle, Launch numerical aperture, Leaky mode, Manakov system, Mandrel wrapping, Material dispersion coefficient, Mechanical splice, Microducts, Modal dispersion, Mode field diameter, Mode scrambler, Mode volume, Tsuneo Nakahara, Normalized frequency (fiber optics), Numerical aperture, Open fiber control, Optic crystals, Optical power meter, Optical time-domain reflectometer, Optical train, Optomechanics, Ovality, Overfill, Power-law index profile, Radiation angle, Radiation mode, Radiation pattern, Radio over Fiber, Ray (optics), Recoating, Reference surface, Refractive index contrast, Refractive index profile, Return loss, Solar photonics, Split-step method, Step-index profile, Stripping (fiber), Substitution method, Subwavelength-diameter optical fibre, Thunderbolt (interface), Zero-dispersion wavelength, Multiplexing, 12-channel carrier system, Acoustic telegraphy, Bias tee, Carrier interferometry, Carrier recovery, Carrier system, Central Office Multiplexing, Channel bank, Chirp spread spectrum, Code division multiple access, D4 framing standard, Demultiplexer (media file), DHEC, Digital Circuit Multiplication Equipment, Digital multiplex hierarchy, Digital Multiplex System, Digital Signal 1, Digital Signal Designation, Digital Subscriber Line Access Multiplexer, Digital transmission group, Digroup, DMS-100, Drop and insert, DS1C, DS4/NA, E-carrier, Equivalent pulse code modulation noise, Extended Super Frame, Extended superframe, Frequency grid, Frequency-division multiplexing, Frequency-hopping spread spectrum, Generic Framing Procedure, Guard interval, Inverse multiplexer, Inverse Multiplexing for ATM, L-carrier, Link Capacity Adjustment Scheme, Modified AMI code, MPX filter, Multiplexer, Optical add-drop multiplexer, Orthogonal frequency-division multiplexing, Pair gain, PCM30, Plesiochronous Digital Hierarchy, Pulse-code modulation, Shared medium, Spread spectrum, Statistical time division multiplexing, Subcarrier multiplexing, Superframe, Surpass hiT...and much more This book explains in-depth the real drivers and workings of Wavelength-Division Multiplexing (WDM). It reduces the risk of your technology, time and resources investment decisions by enabling you to compare your understanding of Wavelength-Division Multiplexing (WDM) with the objectivity of experienced professionals.


Achieving 1 GBPS Over Step-index Plastic Optical Fiber by Controlling the Effective Numerical Aperture

Achieving 1 GBPS Over Step-index Plastic Optical Fiber by Controlling the Effective Numerical Aperture

Author: Naji Albakay

Publisher:

Published: 2014

Total Pages: 65

ISBN-13:

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In this work, we develop a relatively simple and reliable technique to mitigate the effect of modal dispersion of standard, 1 mm step-index plastic optical fiber (SI-POF). We focus on decreasing the modal dispersion by reducing the effective numerical aperture (NA) of the fiber link. The technique involves a spatial mode filter that is constructed by using a commercially available polycarbonate capillary tube having a refractive index of 1.59, with inner and outer diameters of 1 mm and 2 mm, respectively. The capillary tube holds two pieces of 1 mm SI-POF, one comes from the transmitter and the other shorter one connects to the receiver. The two fibers are aligned by the tube and separated by an air gap. Increasing the gap width inside the tube effectively reduces the NA of the fiber link. We experimentally demonstrated an error-free 1 Gb/s over 30 m of SI-POF. The simplicity, reliability, robustness, and low cost make this technique an ideal candidate for dispersion mitigation in short range telecommunication networks.


Understanding Optical Communications

Understanding Optical Communications

Author: Harry J. R. Dutton

Publisher: Prentice Hall

Published: 1998

Total Pages: 760

ISBN-13: 9780130201416

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2014A-8 The complete, up-to-date technical overview of optical communications. Fibre in the WAN, MAN, local loop, campus and LAN. Up-to-the-minute coverage of Wavelength Division Multiplexing. Previews today's advanced research--tomorrow's practical applications. Over the past 15 years, optical fibre's low cost, accuracy and enormous capacity has revolutionized wide area communications--making possible the Internet as we know it. Now a second fibre revolution is underway. Advanced technologies such as Wavelength Division Multiplexing (WDM) are adding even more capacity, and fibre is increasingly the media of choice in MANs, campuses, buildings, LANs--soon, even homes. If you need to understand the state-of-the-art in optical communications, Understanding Optical Communications is the most complete, up-to-date technical overview available. Fundamental principles and components of optical communications. Optical communications systems, interfaces and engineering challenges. FDDI, Ethernet on Fibre, ESCON, Fibre Channel, SONET/SDH and ATM. WDM: sparse and dense approaches, photonic networking, WDM for LANs and WDM standards. Fibre in the local loop, integration with HFC networks and passive optical networks. Understanding Optical Communications reviews key technical issues facing engineers as they extend fibre into new applications and markets. It presents an up-to-the-minute status report on WDM for LANs and MANs, including a rare glimpse at IBM's latest experimental systems. It points to the advanced research most likely to bear fruit: dark and spatial solitons, advanced fibres, plastic technologies, optical CDMA, TDM and packet-networks and more. Whether you're building optical systems or planning for them, this is the briefing you've been looking for.


Results and Analysis of Spatial Domain Multiplexing

Results and Analysis of Spatial Domain Multiplexing

Author: Bilas Chowdhury

Publisher:

Published: 2014

Total Pages: 208

ISBN-13:

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Spatial domain multiplexing (SDM), also known as Space Division Multiplexing adds a new degree of photon freedom to optical fiber multiplexing techniques by allocating separate radial locations to different Multi-Input Multi-Output (MIMO) channels as a function of the input launch angle. These independent MIMO channels remain confined to their designated locations while traversing the length of the fiber, owing to helical propagation of light inside the fiber core. The SDM technique can be used in tandem with other techniques, such as time division multiplexing (TDM) and wavelength division multiplexing (WDM), in hybrid optical communication architectures, to enhance optical fiber bandwidth by increasing the photon efficiency due to added degrees of photon freedom. This presents the feasibility of a hybrid optical fiber communications architecture that supports co-propagation of WDM channels in a SDM system by showing that SDM channels of different wavelengths at the output end continue to follow the input launch angle based radial distribution pattern. These channels also maintain their orbital angular momentum (OAM) as they traverse the length of the fiber.


Optical Fiber Multiplexing and Emerging Techniques

Optical Fiber Multiplexing and Emerging Techniques

Author: Syed H. Murshid

Publisher:

Published: 2018

Total Pages:

ISBN-13: 9781681745718

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This book begins with the history and fundamentals of optical fiber communications. Then, briefly introduces existing optical multiplexing techniques and finally focuses on spatial domain multiplexing (SDM), aka space division multiplexing, and orbital angular momentum of photon based multiplexing. These are two emerging multiplexing techniques that have added two new degrees of photon freedom to optical fibers. Part of Series on Electromagnetics and Metamaterials