Lecture1 - Overview of Optical Fibre Communications; Theory...

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1 Overview of Optical Fibre Communications; Theory of Multimode Fibres EE4035 Optical Communications Semester A 2010-11 Lecture 1
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2 http://www.cybergeography.org/atlas/cables.html
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3 http://www.cybergeography.org/atlas/cables.html
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4 http://www.cybergeography.org/atlas/cables.html
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5 Future Home Network IEEE 1394 is an interface standard for data transmission over 100 Mb/s.
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6 Milestones in Optical Fibre Development 1842: Colladon demonstrates light guiding in jet of water 1920s: Bend glass rods common for microscopic illumination; glass rods or hollow tubes to carry image; fiber-optic imaging bundle 1950s: Clad fiber to improve transmission; fiber-optic image scramblers; fiber-optic endoscope; 1963: Karbowiak of STL considers flexible thin-film waveguide for communications 1966: Kao (高锟) and Hockham of STL propose fiber-optic communications 1972: Maurer, Keck, and Schultz make multimode Ge-doped fiber with 4dB/km loss 1975: Payne and Gambling establish zero dispersion wavelength at 1.27 μ m 1978: NTT makes single-mode fiber with 0.2 dB/km loss at 1.55 μ m 1987: University of Southampton develops erbium-doped fiber amplifier operating at 1.55 μ m
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7 City University of Hong Kong, 14 May 2006 Pak L. Chu Allan W. Snyder Charles Kao Alec W. Gambling H. P. Chan K. S. Chiang Anson Yeung
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8 Colladon’s Fountain [D. Colladon, La Nature , 1884, p.325] [ Scientific American , 1889, p.376] [ La Nature , 1889, p.593] 1889 Universal Exhibition in Paris (6 Nov., 1889
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9 Bell’s Photophone [Lucent Technology] In 1880, Alexander Graham Bell invented photophone. He demonstrated transmission of voices with light over a distance of ~200 meters.
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10 Evolution of Optical Fibre Systems Early-Mid 1970’s Inception of optical fiber communications Late 1970’s Field trials of multimode fiber systems for telephone transmission in USA, Europe, and Japan (40 – 140 Mb/s with a repeater spacing of ~10 km) Mid 1980’s Long-haul links for intercity applications using 1300-nm single- mode fibers (155 Mb/s – 2.5 Gb/s with a repeater spacing up to 40 km) Late 1980’s Launch of the first submarine system (TAT-8); erbium-doped fiber amplifiers (EDFAs) operating in the 1550-nm window; development of 1550 nm systems (2.5 Gb/s with a repeater spacing of ~100 km) Early 1990’s Interest shift to WDM systems Mid 1990’s Installation of 1550-nm single-channel systems at 10 Gb/s Late 1990’s Installation of WDM submarine systems; development of Raman amplifiers; demonstration of single-channel 40 Gb/s systems and DWDM Tb/s systems Beyond 2000 Installation of DWDM Tb/s systems
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11 Intended Learning Outcomes (ILOs) Describe the features and advantages of optical fibre communication. Explain the effect of total internal reflection (TIR) and light transmission
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This note was uploaded on 04/17/2011 for the course EE 4035 taught by Professor Prof.chiang during the Spring '10 term at City University of Hong Kong.

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Lecture1 - Overview of Optical Fibre Communications; Theory...

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