Top Research Papers on Optical Fiber Communication

Optical fibres and their associated signal processing of laser pulses are the backbone of modern communications but, without exception, every aspect of their structure, and component items, rely totally on extremely fine and accurate control of impurities, which were once discussed as unwanted dopants and imperfections. The history and techniques to make the fibres are discussed from their initial usage in medical internal probes for visual inspection, their progress from a limited useful range of a metre (because of optical absorption) to networks measured in hundreds of kilometre length tran...

New ideas for interactions and particles: This paper examines the possibility to origin the Spontaneously Broken Symmetries from the Planck Distribution Law. This way we get a Unification of the Strong, Electromagnetic, and Weak Interactions from the interference occurrences of oscillators. Understanding that the relativistic mass change is the result of the magnetic induction we arrive to the conclusion that the Gravitational Force is also based on the electromagnetic forces, getting a Unified Relativistic Quantum Theory of all 4 Interactions.

A transcript of the proceedings of a meeting of the Royal Signals Institution, held at the School of Signals, Blandford on 31 March 1976.

The guided propagation of light along an optical fibre; a study of the elementary physics of the propagation and definition of fundamental variables; materials and techniques used in manufacture; attenuation; pass-band; optical fibre cables; connectors; particulars of electro-optical and opto-electronic transducers; methods of measuring parameters and characteristics; present applications; review of work in progress in Belgium.

A fiber optic communication device (2) is applicable to the positioning of an optical fiber cable (22) having a first optical fiber connector (221). It includes a main body (21) and a locating slot (23). The main body (21) comprises a housing (211) and a second optical fiber connector (212) for inserting the first optical fiber connector (221). The positioning slot (23) is disposed continuously around the periphery of the housing (211) of main body (21) from the outside to open, thereby forming a space for receiving the fiber optic cable (22), and positioning the fiber optic cable (22). The op...

This paper presents a review of the state of the art of optical fibres and their potential use as waveguides for long-distance transmission of light. The physical principle of light guidance in fibres is discussed and the advantages and short comings of fibres are pointed out. The properties of single and multimode fibres are reviewed.

Optical fibre transmission systems are now moving inexorably towards the field trial stage of development following a variety of advances during the research stage. These developments are reviewed together with the various systems that stem from them and their possible uses are discussed. Over the last few years the intense study of optical systems by both physicists and engineers has led to some interesting links being formed between optical and microwave concepts

Optical fibers are used extensively for data transmission systems because of their dielectric nature and their large information-carrying capacity. Network architectures using multiple wavelength channels per optical fiber are utilized in local, metropolitan, or wide-area applications to connect thousands of users having a wide range of transmission capacities and speeds. A powerful aspect of an optical communication link is that many different wavelengths can be sent along a fiber simultaneously in the 1300-to-1600- nm spectrum. The technology of combining a number of wavelengths onto the sam...

The feasibility of operating a non-simultaneous, bidirectional, unrepeatered communications link over long lengths of optical fibre at a data rate of 1Mb/s is discussed. The link is intended for communicating between a stationary local terminal and a mobile remote terminal. A design study of the link has shown that the optical fibre is the most critical system component and that precise characterisation of the fibre is essential. A 1Mb/s optical fibre data link has been constructed to test the validity of the design study, and has been successfully operated over a distance of 5 km with an e...

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This project presents a simple communication system using fibre optic as communication media that provides sending an audio signal with bandwidth of 300Hz to 4 kHz from transmitter to a receiver using the optical fibre medium.

The fibre optics biosensor is extremely important in the production of biosensors since it helps to quickly miniaturise and integrate those targets.

This paper briefly introduces some problems about the optical fiber communication, including the types of the optical fiber, the loss features and dispersion features, the optical devices on the optical path, the optical fiber communication system and its engineering design.

This book is a worthwhile, essentially pedagogic, complement to existing books on optical communication and is written in a popular, easy to read style which renders it more accessible to students and nonspecialists.

Presents contributions by a group of specialists working as a team, covering most aspects of fibre optic communication since its inception. Numerical examples help the reader perform calculations associated with fibre optics experiments. Examples show how a representative optical communication system is designed. Material covers theory, technology, design and practical applications.

As new processes become available and record lows in fiber loss are being reached, propagation theory is finding new challenges as well and multimode fibers seem desirable with respect to transmitter compatibility, splicing, and fabrication tolerances.

The Communications Toolbox: Introduction. Probability and Random Variables. Some Important Probability Distributions. Signals and Systems. Random Processes. Spectral Analysis. Narrowband Signals and Systems. Elements of Detection Theory. From Light to Signals. Basic Optical Fiber Communications Components: Introduction. The Refractive Index and the Laws of Reflection and Refraction. Total Internal Refraction. Step Index Fibers and Slab Waveguides. Maxwell's Equations in the Slab Waveguide. Even Propagation Modes. Odd Propagation Modes. Number of Modes and Single-Mode Fibers. Phase Velocity. Gr...

PURPOSE: To provide a long-distance optical fiber communication system which propagates a linear polarized signal and can evade nonuniformity of the gain of polarity dependency, generated when the signal is amplified by an erbium- doped optical fiber amplifier, in such a case. CONSTITUTION: This optical fiber communication system has a reflector; and a light signal is passed through an optical fiber part doped with a rare earth element, and reflected and returned in its orthogonal polarity state to suppress the nonuniformity of the polarity gain. The Faraday rotation of the light signal by a F...

An optical fibre communications system includes a head end connected to n customers by an optical fibre network. The head end has a transmitter unit and a receiver unit, and each of the customers has an optical network unit with an optical receiver and a transmitter unit. The head end transmitter and receiver units are connected respectively to the receivers and the transmitter units of the customer optical network units by at least one passive optical network. The head end transmitter unit includes an optical transmitter driven by a sub-carrier multiplexer, the sub-carrier multiplexer having ...

This paper examines potential applications of optical fiber for both civil and military application. Examples of prototype systems are given as a basis for the examination of future links. Cable cross section, bandwidth, and transmission distance tradeoffs are compared with those of coaxial cable, to reveal the relative merits of the two media.