ENGINEERING RESEARCH PAPERS

optical fibre communication 2012




Effects of Four Wave Mixing on an Optical WDM System by using Dispersion Shifted Fibre
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INTRODUCTION Optical fibre communication provides a very large bandwidth (50 THz) and it becomes the most modern means of communication. To utilize the available bandwidth, we can multiplex numerous channels

Networking technologies for wide-area measurement applications
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Until now, there have been at least four commonly used transmission medium in power system communication design: power-line communication, satellite communication, microwave communication, and optical-fibre communication .

Energy-efficient vertical-cavity surface-emitting lasers (VCSELs) for green data and computercommunication
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, Multimode optical fibre communication at 25 Gbit/s over 300 m with small spectral-width 850 nm VCSELs,

Introduction to Optical Communications
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Optical Fibre Communication Systems  Although it is often easy to implement analogue modulation with an optical fibre communication system, it is less efficient and requires a far higher signal-to-noise ratio at the receiver than digital modulation.

An optically remote powered subsea video monitoring system
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 This can be challenging for heavy and costly electrical cables over extended distances. For this reason optical fibre is often adopted as the communication channel. Using optical fibre cables for both communications and power delivery can also reduce the cost of cabling.

CMOS AVALANCHE ELECTROLUMINESCENCE APPLICATIONS–MICRODISPLAY AND HIGH SPEED DATA COMMUNICATION
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 factor of 2.18 [8]. The BEOL-stack reflectors can be designed to either focus the light into a narrow pencil-beam for coupling into an orthogonally aligned optical fibre for communication or to generate a wide beam width for a microdisplay with a wider half-power viewing angle.

Broadly tunable high-power random fibre laser
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 The demonstrated laser presents a new object for fundamental research as well as a practical device with high performance and simple design implemented in standard optical fibre offering new applications in optical communication, sensing and secure communications.

Design of a novel multi-core optical fibre for imaging and beam delivery in endoscopy
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 Lett. 33, 2937-2939 (2008) [7] Cimr, T., and Dholakia, D., Shaping the light transmission through a multimode optical fibre: complex transformation analysis and applications in biophotonics,

Optical temperature switch based on microstructured fibre filled with different chemical mixtures
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 Page 4. Figure 4. Laboratory set-up to test optical fibre patch cord with filled MSFs.  [8] Rajesh, VN and Vijaya, R., Tunable photonic stop band in the wavelength region of fibre-optic communication, Optical Materials 32 (2), 387–391 (2009).

Telecommunications Cabling: Guidance on standards and best practice for construction projects
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 Cabling installation. Installation planning and practices outside buildings BS EN 60825-2:2004+A2:2010 Safety of laser products. Safety of optical fibre communication systems (OFCS) PD ISO/IEC TR 29106:2007 Information technology. Generic cabling.

Submarine Optical Fiber Cable Systems for High Speed Growth Developments in OpticalCommunication Networks
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 Submarine Optical Fiber Cable Systems for High Speed Growth Developments in Optical Communication Networks  Page 2. 50 Submarine Optical Fiber Cable Systems for High Speed Growth Developments in Optical Communication Networks MECS

High-speed VCSELs for energy efficient computer interconnects
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First starlight spectrum captured using an integrated photonic micro-spectrograph
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 2010; Lawrence et al. 2010; CV12). Arrayed waveguide grating chips are commonly used in fibre-optic communication systems as wavelength division mul- 1  tiplexors, multiplexing a number of optical carrier signals into a single optical fibre (Takahashi et al. 1990).

Development of a FBG probe for non-invasive carotid pulse waveform assessment
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 1.2. Fibre Bragg sensors Optical fibre sensors have several desirable advantages over the traditional ones: small dimensions, fast communication and immunity to electromagnetic interference. Consequently, they are increasingly

Evaluation of Optical Amplifiers
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Keiser, Coherent Optical Fiber Communications , Optical Fiber Communications, McGraw-Hill,

First demonstration of a 12 DFB fiber laser array on a 100 GHz ITU grid, for underwater acoustic sensing application
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 5. CONCLUSION In this communication, we have described the operating principle of a fiber laser sensor array. We have reported the low intensity noise and very low frequency noise (less than 30 dB 1 Hz  Conf. Optical Fibre Sensors 7503, 750352–1–750352–4 (2009).

A novel robotic catheter system with force and visual feedback for vascular interventional surgery
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 TMS320F28335) as their control units, communication between master manipulator and slave manipulator is realised by the TCP/IP protocol communication.  The contact force between catheter tip and blood vessel measured by the optical fibre force sensor is transmitted to the

POLARISATION SHIFT KEYING MODULATED FREE-SPACE OPTICAL COMMUNICATIONSYSTEMS
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 MODULATED FREE-SPACE OPTICAL COMMUNICATION SYSTEMS  The data transmission rate, range, and reliability of free-space optical communication (FSO) systems are affected by a number of atmospheric phenomena, such as rain, haze, fog, snow, and scintillation.

Design of Highly Birefringent and Low Confinement Loss Photonic Crystal Fibre by Introducing Asymmetric Defect Structures
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 of Electronics and Communication Hindustan Institute of Technology and Science Chennai, India running along its length- have attracted much attention for fibre device application because of its unusual optical properties that are not realized in standard optical fibre, such as

Regional differences in telecommunications infrastructure and development of enterprises
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 transmission channel (track) ,allowing the transmission of electricity between the transmitting and receiving devices (eg copper wire, optical fibre).  L. Kupiec defines mobile telephony as a telephone communication system separate from the mobile satellite based on low-power

The nonlinear Shannon limit and the need for new fibres
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 crunch where user demand (Figure 1) appears to be approaching the limits of an optical fibre (Figure 2) is a trade of between the well known Shannon limit and nonlinearity. Shannon predicted that the information capacity of a fixed bandwidth communication channel without

Fibre Sensing System Based on Long-Period Gratings for Monitoring Aqueous Environments
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 In optical communication systems, LPGs are applied as gain equalizing filters, wavelength selective devices, band  functions of supporting and housing a sensor for measuring salinity and temperature, which is based on a LPG inscribed in standard silica optical fibre, with 125µm

METHODOLOGY FOR IN SITU CHARACTERISATION OF A HIGHLY BIREFRINGENT PHOTONIC CRYSTAL FIBRE FOR SUPERCONTINUUM GENERATION
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 org Cirta Com Laboratory, Engineering School of Communication of Tunis (Sup Com), University of Carthage  words: Polarisation maintaining fibre, orientation measurement, supercontinuum, photonics 1. INTRODUCTION Polarisation-maintaining (PM) optical fibre has some

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