A Beginner's Guide to Wavelength Division Multiplexing (WDM)

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A Beginner's Guide to Wavelength Division
Multiplexing (WDM)

• By Versitron Inc.

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Introduction

• Wavelength Division Multiplexing has been the
  preferred choice of technology for transmission
  of data in the form of light signals over a fiber
  cable. It helps in maximizing the capacity of
  fiber network and avoids excessive wiring.
• This technology was initially used only by
  private carriers and service providers. But with
  consistent upgradation and technical
  improvements, WDM has been widely used by
  government organizations, data centers etc.

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What is Wavelength Division Multiplexing?

• WDM is a technique that multiplexes individual
  light wavelengths for transmitting data over a
  single medium. WDM components work opposite at
  the receiving end by de-muxing the combined light
  wavelength back into an individual and routed to
  their receivers.
• To put it simply, the WDM system combines signals
  with multiplexing (MUX) and separates them using
  de-multiplexing (DEMUX).
• This technology is mainly used in
  telecommunication applications.

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Advantages of Wavelength Division Multiplexing
(WDM)

• It has ultra-large data transmission capacity.
• It easily connects new channels without
  disrupting the existing network traffic
• All wavelengths are independent which ensure
  transmission transparency
• WDM System offers reliability.
• This technology maximizes fiber utilization and
  optimizes overall network investments.

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Classification of WDM

• Wavelength Division Multiplexing is divided into
  two categories
• CWDM i.e. Coarse Wavelength Division
  Multiplexing This technology combines multiple
  signals at various wavelengths. CWDM is
  compatible with both GBIC and SFP Connections.
• DWDM i.e. Dense Wavelength Division Multiplexing
  This technology is a vital form of fiber optic
  communications. It intensely increases the
  bandwidth of a single fiber cable. it is used in
  cloud data centers.

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Components of WDM

• There are 4 main components of Wavelength
  Division Multiplexing (WDM)
• Transceivers
• Mux and De-Mux
• Patch Cable
• Dark Fiber Network
• To know more about WDM visit https//www.versitro
  n.com/blog/an-introductory-guide-for-wavelength-di
  vision-multiplexing-wdm