Dense Wavelength Division Multiplexing (DWDM) Training

Dense Wavelength Division Multiplexing (DWDM) Training Course with Hands-On Exercises (Online, Onsite and Classroom Live)

Dense Wavelength Division Multiplexing (DWDM) is a key part of the world’s communications infrastructure. The revolution in optical transmission technologies that has occurred in this decade has allowed operators to dramatically increase their transmission capabilities at a fraction of the costs of legacy technologies. For anyone involved with telecommunication and information technology, understanding this technology is of vital importance.

In this introductory DWDM training course, you will learn the essentials of the T-carrier system, review the SONET/SDH basics, and study the technology and applications of dense wavelength division multiplexing. Toward the end of the DWDM Training or Dense Wavelength Division Multiplexing (DWDM) course, we will also touch upon coarse wavelength division multiplexing.

Dense Wavelength Division Multiplexing (DWDM) TrainingDuration: 2 days

  • We can adapt this Dense DWDM Training course to your group’s background and work requirements at little to no added cost.
  • If you are familiar with some aspects of this DWDM Training course, we can omit or shorten their discussion
  • We can adjust the emphasis placed on the various topics or build the DWDM Training Course around the mix of technologies of interest to you (including technologies other than those included in this outline).
  • If your background is nontechnical, we can exclude the more technical topics, include the topics that may be of special interest to you (e.g., as a manager or policy-maker), and present the DWDM Training course in manner understandable to lay audiences.

The target audience for this DWDM Training course:

  • Telecommunications transport, systems, and network engineers, capacity managers, and others responsible for the planning, design, or day-to-day operation and management of large telephony systems.

The knowledge and skills that a learner must have before attending this DWDM Training course are:

  • While there are no particular prerequisites for this DWDM Training course, some comfort with Physics and Mathematics will be helpful. However, all necessary Mathematics/Physics concepts will be reviewed within the course as needed.
Dense Wavelength Division Multiplexing (DWDM) Training - OBJECTIVES

Describe the key concepts and techniques of transport/optical transmission technologies including:

  • T-carrier system
  • DWDM
  • Coarse WDM
Dense Wavelength Division Multiplexing (DWDM) Training - COURSE SYLLABUS

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
Dense Wavelength Division Multiplexing (DWDM) Training Course Wrap-Up

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