Dense Wavelength Division Multiplexing DWDM Training

Duration: 2-3 days

Introduction

The revolution in optical transmission technologies begin at the beginning of this decade has allowed operators to drastically increase their transmission capabilities at a fraction of the costs of legacy technologies. This introductory course is intended to provide the fundamentals of dense wave division multiplexing, and will also touch on coarse wave division multiplexing, for network planners, engineers and designers alike.

Dense Wavelength Division Multiplexing DWDM Training

Related Courses

After completing this course, attendees will be able to:

Transport Technologies

  • The T-Carrier System
  • Framing
  • Synchronization
  • Extended super frame
  • Capacity overview
  • SONET/SDH overview
  • Framing
  • Overhead
  • SONET structures
  • SONET carrier system
  • SONET Synchronization
  • Concatenation
  • BLSR

WDM Technologies

  • History of WDM
  • Evolution of DWDM
  • Drivers of DWDM
  • Drivers of CWDM
  • Overview/Comparison of DWDM to CWDM
  • Overview of a functioning DWDM system
  • Signal generation
  • Combiners/Muxers
  • Transmitters
  • Receivers
  • How optical fiber works
  • Refraction
  • Reflection
  • Cladding
  • Core
  • Overview of multimode fiber
  • Overview of single-mode fiber
  • Step index

Functional Descriptors – DWDM

  • Standards & definitions
  • Channel spacing
  • Multiplexers
  • Optical multiplexers
  • Add/drop multiplexers
  • Wave division multiplexing
  • Signal regeneration

Functional Descriptors – CWDM

  • ITU standard definition
  • Channel spacing
  • Applicability and use

Dense WDM

  • ITU standard definition
  • Channel spacing
  • Wavelengths
  • EDFA
  • DWDM terminal multiplexer
  • Add drop multiplexer in DWDM
  • DWDM terminal duplexer
  • Optical supervisory channel

DWDM Systems

  • Typical laser design – overview
  • ITU Grid G.692
  • Transponders
  • Re-transmission – 1R
  • Re-time and re-transmit – 2R
  • Re-time, re-transmit and re-clock – 3R
  • Multiplexed transponders
  • Transmitters
  • Attenuation
  • Chromatic dispersion
  • Nonlinearities
  • Optical amplifiers
  • Optical receivers
  • OADMs
  • Roadm (reconfigurable add/drop multiplexer) Technology
  • DWDM in single-mode fiber systems
  • DWDM in multimode fiber systems

DWDM Applications

  • Long distance
  • Long haul
  • Self healing rings
  • Diversity
  • Network expansion

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