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.

Audience:

Telecommunications transport engineers, network planners, systems engineers, capacity managers involved in the day to day operation and management of large telephony systems.

Prerequisites:

None

Customize it:

This 2-3-day DWDM course will be customized to your needs and specifications. Enowireless will assist you in identifying those needs and specifications. A word to the wise, there are many vendors of wireless training. They will typically have a broad and general course, one size fits all, already developed and just put your organization’s name on the title slide. This minimizes their effort and time investment. At Enowireless, every course is made to your exact and exacting specifications. We help you ensure what you are getting is what you really need even if at the beginning you weren’t too sure of what that was. We fit the class to your needs. We never fit you into our “standard”, one size fits all, class.

Objectives:

To provide a solid foundation in optical transmission technologies including DWDM, Coarse WDM and the T-carrier system.

Course Outline

Transport Technologies The T-Carrier System o Framing o Synchronization o Extended super frame o Capacity overview SONET/SDH overview o Framing o Overhead o SONET structures o SONET carrier system o SONET Synchronization o Concatenation o 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 o Signal generation o Combiners/Muxers o Transmitters o Receivers How optical fiber works o Refraction o Reflection o Cladding o Core o Overview of multimode fiber o Overview of single-mode fiber o 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 o Re-transmission - 1R o Re-time and re-transmit - 2R o Re-time, re-transmit and re-clock - 3R o Multiplexed transponders Transmitters o Attenuation o Chromatic dispersion o 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 Please call or e-mail to schedule a no-obligation conference call to help us understand your audience background and training objectives.