Download Advanced DWDM

Course Name
Advanced DWDM
Course Number
LS 121 104
Course Duration
2 days
Course Description
This course provides an advanced technical overview of DWDM
and optical networking concepts One of the major issues in the
networking industry today is tremendous demand for more and
more bandwidth. With the development of optical networks and
the use of Dense Wavelength Division Multiplexing (DWDM)
technology, a new and probably, a very crucial milestone is being
reached in network evolution.
In this course we will discuss various advanced concepts that are
integral to the development of the All-Optical Network. Various
new technologies available in a DWDM system will be introduced.
Issues such as Network Design, Network Control and Network
Management will also be discussed.
Course Objective
After completing this course, students will be able to:
Understand advanced optical communications topics
Explain advanced DWDM Network Designs and Engineering
Design and evaluate optical components in a DWDM network
Learn about the effects of noise in signal propagation, especially
from OSNR and BER perspectives
Design optical amplifier-based links
Learn how to design optical links based on power budget,
dispersion and non-linearties Design optical links based on OSNR
Classify and design DWDM networks based on size and
performance
Learn how to test and measure different parameters in DWDM
networks and optical systems
Target Audience
Prerequisites
Course Modules
This course is designed for strategic or technical managers,
consultants, communications professionals, software engineers,
system engineers, Sees, network professionals, marketing and
sales professional, IT professionals, and others who plan on using,
evaluating or working with DWDM and optical networks
applications and services.
This is an advanced program covering all the details of DWDM
components and networks. Course 402, 404 or similar courses are
recommended.
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DWDM Components and Architecture
DWDM Anatomy
DWDM Impairments
Multiwavelength Transmitters
Multichannel Receivers
DWDM Optical Amplifiers
Wavelength Converters
Modal Effects
Scattering Effects
Miscellaneous Effects
DWDM Impairments
Spectrum
Availability, Occupancy, Efficiency
Bandwidth & Distance Limitations
Noise, Dispersion, Non-linearities
Four Wave Mixing (FWM)
Cross-phase Modulation (XPM)
Stimulated Brillouin Scattering (SBS)
Stimulated Raman Scattering (SRS)
Chromatic Dispersion (CD)
Polarization Mode Dispersion (PMD)
Amplified Spontaneous Emission (ASE)
Modeling of Nonlinearities
Noise-like penalties
Illustrations with System Examples
Optical Power Damage Threshold
Fiber
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Components
Noise Sources: ASE, Shot, Thermal, etc.
Not-Return-to-Zero (NRZ) vs. Return-to-Zero (RZ) Transmission
Dispersion and PMD Compensation
The Effects of Optical Crosstalk
Analysis of Optical Components
Parameters common to all optical components
Optical Filters
Optical Couplers
Optical Power Attenuators
Polarizer and Rotators
Beam Splitters
Optical Isolators and Circulators
Optical Multiplexers and Demultiplexers
Optical Cross Connects (OCXs)
Optical Add Drop Multiplexers
Optical Equalizers
Light Sources
Laser Beams
Modulators
Photodetectors and Receivers
Optical Amplifiers
Wavelength Convertors
Optical Phase-Locked Loops
Ring Resonators
Optical Attenuators
Optical SNR
EDFA Details
Advantages
EDFA Disadvantages
Limited to C and L bands
Pump Laser
Erbium Doped Fiber
Wavelength Selective Coupler
Isolator
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A Comparison between EDFE, Raman Amplifier and SOAs
Networking with DWDM
Optical Systems and Components Analysis
Optical Transmitters: Lasers
Modulation: Direct and External
Optical Receivers: Photodetecters
Couplers and Circulators
Cavities and Filter
Complex Components: Transponders
Optical Switches
Mechanical Switches
Acousto-Optical Switches
Micro-mechanical switches (MEMS)
2D MEMS (Bar State)
3D MEMS Switch Operation
Electro-Optical and Thermo-Optical Switches
Bubble Technology
Liquid Crystal Switches
Hologram-based Switches
Factors That Affect System Design
Effect of Chromatic Dispersion
Q-Factor and OSNR
What is the Q-factor?
Methods to determine the Q-factor
Asynchronous sampling (voltage histogram)
Synchronous sampling (digital sampling scope)
Synchronous sampling method (single decision threshold
method)
Synchronous sampling method (dual decision threshold
method)
Q-factor applications
System test during manufacturing
Installation of optical networks
System optimization
Maintenance and troubleshooting
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System monitoring
Calculation of Q-Factor from OSNR
Margin Requirements
Design Using Chromatic Dispersion Compensation
OSNR and Dispersion-Based Design
Effects of FWM and XPM on Long-Haul Design
PMD in Long-Haul Design
Forward Error Correction (FEC)
DWDM Span Engineering
Engineering a DWDM link
Power Budget Design
What are the factors?
Digital Modulation Formats
Fiber Impairments
Loss
Dispersion
Nonlinear Effects (SPM, XPM, FWM, Raman)
Polarization Dependent Effects (PDL and PMD)
Noise Sources and Noise Accumulation
Bit Error Rate and Signal-to-Noise-Ratio
Signal Crosstalk
DWDM Systems Design Amplifier power
Amplifier spacing
Fiber types
Channel count and bit rate
Channel Bit Rate
Dispersion and polarization
Non-linear effects
Simulation and testing
DWDM Testing, Measurements and OAM&P
Test and Measuring Devices
Characterization of a DWDM Mux and Demux
Characterization of a DWDM OADM
EDFA Testing
Optical Waveform Analysis
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Complete DWDM End-to-End
Component conformance tests
Parameter tests on optical fibers
System installation tests
System optimization tests
System acceptance tests