CTS-Session-06A-OpMux-Shrt - Session 06 A Optical...

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Session 06 A LT/CTS-05A/1010 1 of 27 Optical Multiplexing Overview
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Optical Multiplexing ain Reference LT/CTS-05A/1010 2 of 27 Main Reference Chapter 15, 22
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Evolution of the Technology LT/CTS-05A/1010 3 of 27
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Basic Properties Multiplexers combine optical channel. Demultiplexer separate optical channels. Demultiplexing is harder than multiplexing as it must separate optical channels completely with low cross- talk. n Add Drop Multiplexer (ADM) diverts one or more LT/CTS-05A/1010 4 of 27 An Add Drop Multiplexer (ADM) diverts one or more optical channels and may add new signal in their place. ADM multiplexer reflects one channel and transmit others. A Wavelength router direct signals according their wavelength.
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Basic Requirements Wavelength multiplexing must transmit the desired one and block noise at other wavelengths. Wavelength demultiplexing is to isolate individual optical channel. ADM separates and combines only a few LT/CTS-05A/1010 5 of 27 wavelengths. Wavelength separator is to isolate a signal wavelength. Other requirements such as number of channels, their wavelength spacing, distance, amplification and system configuration.
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Characteristics of Optical Multiplexing Capacity upgrade of existing fiber networks (without adding fibers). Transparency: s Each optical channel can carry any transmission format (different asynchronous bit rates, analog r digital). LT/CTS-05A/1010 6 of 27 or digital). Scalability s Buy and install equipment for additional demand as needed. Wavelength routing and switching s Wavelength is used as another dimension to time and space.
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Optical Multiplexing Techniques WDM technology uses multiple wavelengths to transmit information over a single fiber. WDM (now called Coarse WDM) has wider channel
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This note was uploaded on 11/14/2011 for the course COMPUTER E H0704 taught by Professor Lukas during the Spring '11 term at Bina Nusantara University.

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CTS-Session-06A-OpMux-Shrt - Session 06 A Optical...

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