DWDM – Introduction

Courses: Optical Networks (GPON, SONET/SDH, DWDM)
  • Course:DWDM – Introduction
  • Course ID:DWDM101 Duration:2 days Where: Your Office (7+ Persons)
  • Available as a private, customized course for your group at your offices or ours and in some cases as a WebLive(TM) class.

  • Download Course Description (PDF)

Course Outline

  • Introduction to Optical Technologies
    •  An overview of the transport technologies
    • Optical technologies:  Their advantages and disadvantages
  • The T-Carrier System
    • Framing
    • Synchronization
    • Extended super frame
    • Capacity overview
  • Review of SONET/SDH
    • 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 and comparison of DWDM and CWDM
    • Overview of a functioning DWDM system
      • Signal generation
      • Combiners/Mixers
      • 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 and 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:  An 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
  • Course Wrap-up
    • Future evolution of optical technologies
    • Directions for advanced study
    •  Course recap, Q/A, and evaluations