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Fiber Optics Communication

Fiber Optics Communications. 2. BRIEF HISTORY OF OPTICAL COMMUNICATIONS. Early system: smoke signals, signaling lamps, semaphore flags

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Fiber Optics Communication

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    1. Fiber Optics Communication Minglie Hu OPTI 422 9/15/2003

    2. Fiber Optics Communications 2 BRIEF HISTORY OF OPTICAL COMMUNICATIONS Early system: smoke signals, signaling lamps, semaphore flags – ~1 b/s, 100km 1830, Morse Coding keying – ~10b/s, 1000km 1876, telephone - W.W Telephone networks 1940, coaxial cable, 3MHz – 30 voice channels or one TV channel 1948, Microwave system, 4GHz 1960, fibers, loss ~ 1000db/km First Generation fiber, loss~2db/km Today, 10Gb/s, 02.-0.3db/km Future, 40Gb/s, even lower loss

    3. Fiber Optics Communications 3 BASIC POINT-POINT FIBER COMMUNICATION SYSTEM

    4. Fiber Optics Communications 4 BASIC THEORY Geometric theory Total Internal Reflection Critic Angle

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