研究目的
To describe the principle of wavelength division multiplexing (WDM), understand WDM system configuration, know about the applications of WDM-based systems, explain different types of WDM components including transmitters and receivers, and analyze system performance issues and WDM soliton systems.
研究成果
WDM technology significantly enhances the capacity of optical fiber communications networks by allowing simultaneous transmission of multiple wavelength channels over the same fiber. It supports various transmission formats and offers scalability and transparency. The chapter covers WDM concepts, components, system configurations, and performance issues, highlighting the technology's advantages and applications in high-capacity optic–fiber communication networks.
研究不足
The chapter provides a theoretical overview without detailed experimental data or specific limitations of the discussed technologies.
1：Experimental Design and Method Selection:
The chapter discusses the principle of WDM, system configuration, and components without detailing specific experimental procedures.
2：Sample Selection and Data Sources:
Focuses on theoretical aspects and general applications of WDM systems.
3：List of Experimental Equipment and Materials:
Mentions optical devices like tunable optical filters, WDM MUX/DEMUX, add-drop multiplexers, star couplers, wavelength converters, wavelength routers, optical cross-connects, WDM transmitters, and receivers.
4：Experimental Procedures and Operational Workflow:
Describes the operation of WDM systems and components conceptually.
5：Data Analysis Methods:
Discusses system performance issues like inter-channel cross-talk and power penalty.
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Fabry–Perot Interferometer
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Tunable optical filter for selecting desired wavelength channels in WDM systems.
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Mach–Zehnder Interferometer
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Used in WDM systems for filtering and modulating optical signals.
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Acousto–optic Tunable Filter
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Dynamically tunes to select specific wavelengths in WDM systems.
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Electro–optic Tunable Filter
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Electronically tunes to select specific wavelengths in WDM systems.
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WDM MUX/DEMUX
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Combines or separates multiple wavelength channels in WDM systems.
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Add–Drop Multiplexer
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Adds or drops specific wavelength channels in WDM networks.
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Star Coupler
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Combines and distributes optical signals among multiple ports in WDM networks.
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Wavelength Converter
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Converts the wavelength of an optical signal while maintaining data integrity.
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Wavelength Router
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Routes wavelength channels in WDM networks.
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Optical Cross-Connect
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Provides reconfigurable wavelength routing in WDM networks.
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WDM Transmitter
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Generates and modulates optical signals at specific wavelengths for WDM systems.
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WDM Receiver
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Detects and demodulates optical signals in WDM systems.
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