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  • Course Length:
  • 0.5 day Instructor Led

Communication Service Providers around the globe continue to experience rapid growth in data traffic everyday. Deployment of Dark Fiber on the backhaul is a key step in providing the capacity and speeds to support this. This technical primer provides an overview of fiber technology and its use in the transport network.

This course is an introductory course tailored to meet the needs of a wide range of audiences including project managers, real-estate, construction, engineering and operation team members.

After completing this course, the student will be able to:
• Define backhaul and fronthaul transport networks that use single λ, CWDM and DWDM
• Define dark fiber and explain the benefits of using dark fiber in the transport networks
• Explain ROADMs in the context of optical transmission and optical switching
• List the hardware and optical devices used in the dark fiber networks
• Discuss testing procedures and Fiber Characterization Reports from vendors

1. Motivation
1.1 Define dark fiber
1.2 Explain the benefits of using dark

2. Transport Networks
2.1 Fronthaul vs. backhaul
2.2 Fronthaul – Daisy chain, hub and
spoke, rings
2.3 Backhaul rings
2.4 Single Lambda vs. WDM
2.5 Wave Division Multiplexing
2.6 Coarse Wavelength Division
Multiplexing (CWDM) vs. Dense WDM (DWDM)

3. Physical Characteristics of Fiber
3.1 Optical fiber device components
3.2 Fiber optic spectrum
3.3 Best practices for fiber handling

4. Dark Fiber Topology
4.1 ROADMs
4.2 O-E-O – Changing from WDM to Single λ
4.3 Capacity
4.4 Access and aggregation rings
4.5 Optical devices and hardware

5. Switching and Redundancy
5.1 VLAN steering
5.2 BFD and switchovers

6. Testing and Fiber Characterization
6.1 OTDR
6.2 CPRI testing
6.3 Fiber characterization reports

Suggested Prerequisites

Knowledge of backhaul architecture