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- What is WDM Multiplexer?
Multiplexer Knowledge
- Why is Multiplexing Needed in Data Communication Systems?
- What is Concept of Multiplexing in Telephone System?
- What is Digital TV Frequency?
- Outlook of the WDM Networks
- DWDM Technical Overview
- CWDM Technical Overview
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- How to Install a Fiber Optic Modem?
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Multiplexers can be used to connect PBX, Hot line and other devices of network from central site to user site through fiber optical cable.
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Multiplexer Knowledge
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What is WDM Multiplexer?
WDM multiplexer is specialized devices that combine a number of optical streams at distinct wavelengths and launch all their powers in parallel into a single fiber channel. This combination need not be uniform for all wavelengths; that is. One may want to combine 50% of the power from on wavelength, 75% from another source, and 100% from other wavelengths.
However, for WDM applications it is usually desirable that the multiplexers combine the optical powers from multiple wavelengths onto a single fiber with little loss. Wavelength demultiplexers divide a composite multichannel optical signal into different output fibers according to wavelength without splitting loss. This section describes a phased-array-based WDM multiplexer and a fiber-grating multiplexer as examples of such components.
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