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Beginners' Guides
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Mobile WiMax
Beginners' Guides  | 
5/14/2007  |  Post a comment
Worldwide Interoperability for Microwave Access, for faster, more robust radio links
Optical Modulation
Beginners' Guides  | 
11/19/2001  |  12 comments
The switching on and off of laser light in order to represent information in an optical network
Optical Detection & Regeneration
Beginners' Guides  | 
10/9/2001  |  Post a comment
The conversion of noisy optical signals into clean electrical signals
Optical Networks
Beginners' Guides  | 
8/2/2001  |  Post a comment
Optical fibers connecting locations many miles apart, and carrying information in the form of on-off flashes of laser light
Optical Fiber
Beginners' Guides  | 
8/2/2001  |  18 comments
Very thin strands of pure silica glass through which laser light travels in an optical network
Wavelength Division Multiplexing (WDM)
Beginners' Guides  | 
8/2/2001  |  149 comments
Transmitting many different colors (wavelengths) of laser light down the same optical fiber at the same time, in order to increase the amount of information that can be transferred
Formatting for Transmission
Beginners' Guides  | 
8/1/2001  |  1 comment
The conversion of data into 1s and 0s, and the different ways in which these signals can be transmitted through optical fiber
Optical Networking Glossary
Beginners' Guides  | 
8/1/2001  |  5 comments
Optical Units Reference
Beginners' Guides  | 
8/1/2001  |  Post a comment
Multipliers, Optical Power, Gain & Loss, Wavelength & Frequency, and Bandwidth & Optical Modulation Bandwidth
Protocol Basics
Beginners' Guides  | 
8/1/2001  |  6 comments
Forms of communication among network devices to enable the exchange of information
Sonet (Synchronous Optical NETwork) and SDH (Synchronous Digital Hierarchy)
Beginners' Guides  | 
8/1/2001  |  23 comments
Physical-layer protocol that frames data for fast and reliable transmission over optical fiber
Internet Protocol (IP)
Beginners' Guides  | 
8/1/2001  |  2 comments
A network-layer protocol that puts Internet data into packets and helps them to be routed over interconnected local area networks (LANs)
Multiprotocol Label Switching (MPLS)
Beginners' Guides  | 
8/1/2001  |  4 comments
A protocol for the swift routing of data streams, bringing improved performance and quality-of-service options to IP traffic
Asynchronous Transfer Mode (ATM)
Beginners' Guides  | 
8/1/2001  |  12 comments
A data-link layer protocol allowing integration of voice and data with the ability to provide quality-of-service guarantees
Ethernet
Beginners' Guides  | 
8/1/2001  |  79 comments
A data-link layer protocol commonly used to transfer Internet Protocol (IP) packets over cables in local area networks (LANs)
Digital Wrappers and Forward Error Correction (FEC)
Beginners' Guides  | 
8/1/2001  |  16 comments
An encapsulation method for traffic of all protocols, allowing an optical network to be protocol transparent, its functions to be managed in an efficient manner, and its data to be transmitted more reliably
Laser Basics
Beginners' Guides  | 
8/1/2001  |  Post a comment
Devices giving out intense light at one specific color
Distributed Feedback (DFB) Lasers
Beginners' Guides  | 
8/1/2001  |  Post a comment
Lasers giving out a very sharply defined color of light
Tunable Lasers
Beginners' Guides  | 
8/1/2001  |  9 comments
Lasers that can be adjusted to emit one of several different wavelengths
Vertical Cavity Surface Emitting Lasers (VCSELs)
Beginners' Guides  | 
8/1/2001  |  Post a comment
Lasers that emit light from their surface in contrast with regular 'edge emitters'
Optical Amplification
Beginners' Guides  | 
8/1/2001  |  Post a comment
Boosting of an optical signal without any conversion of the light into an electrical signal
Erbium Doped-Fiber Amplifiers (EDFAs)
Beginners' Guides  | 
8/1/2001  |  7 comments
Optical amplifiers made of short lengths of optical fiber doped with the element 'erbium'. A laser excites erbium ions in the fiber, which can then give their energy to optical signals passing through
Raman Amplification
Beginners' Guides  | 
8/1/2001  |  25 comments
Optical amplification process throughout the actual transmission fiber in an optical network, caused by a carefully selected pump-laser wavelength scattering from atoms in the fiber and changing its wavelength to that of the optical signal
Semiconductor Optical Amplifiers (SOAs)
Beginners' Guides  | 
8/1/2001  |  4 comments
Similar to regular lasers, but with an optical signal being amplified by stimulating light emission
Nonlinear Effects
Beginners' Guides  | 
8/1/2001  |  Post a comment
High optical powers causing various effects on signals in optical fibers, usually detrimental
Chromatic Dispersion and Polarization Mode Dispersion (PMD)
Beginners' Guides  | 
8/1/2001  |  Post a comment
The spreading out of light pulses in time due to different wavelengths traveling at different speeds (chromatic dispersion) or different polarization states traveling at different speeds (polarization mode dispersion)
Arrayed Waveguide Gratings (AWGs)
Beginners' Guides  | 
8/1/2001  |  Post a comment
Integrated optical circuits that can combine (multiplex) or separate (demultiplex) different wavelength signals in an optical network
Fiber Bragg Gratings (FBGs)
Beginners' Guides  | 
8/1/2001  |  8 comments
Small sections of optical fiber that act like selective mirrors, only reflecting back specific wavelengths
Submarine Systems
Beginners' Guides  | 
8/1/2001  |  Post a comment
Optical fiber links connecting countries through the world's oceans
Optical Crossconnects
Beginners' Guides  | 
8/1/2001  |  41 comments
Devices that can switch optical signals between different optical fibers, without the need for conversion to electrical signals
Advanced Fiber Types
Beginners' Guides  | 
8/1/2001  |  1 comment
Optical fiber designed to work with, or in place of, conventional fiber in order to improve overall system performance


Light Reading’s Upskill U is a FREE, interactive, online educational resource that delivers must-have education on themes that relate to the overall business transformation taking place in the communications industry.
NEXT COURSE
Wednesday, September 14, 1:00PM EDT
What Is Agile?
Kent J. McDonald, Product Owner, Agile Alliance
UPCOMING COURSE SCHEDULE
Friday, September 16, 1:00PM EDT
How to Implement Agile
Alan Bateman, Director, Agile Transformation
Wednesday, September 21, 1:00PM EDT
What Is DevOps?
Colin Kincaid, CTO, Service Provider, Cisco
Friday, September 23, 1:00PM EDT
How to Implement DevOps
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From The Founder
Light Reading today starts a new voyage as part of a larger Enterprise.
Flash Poll
Live Streaming Video
Charting the CSP's Future
Six different communications service providers join to debate their visions of the future CSP, following a landmark presentation from AT&T on its massive virtualization efforts and a look back on where the telecom industry has been and where it's going from two industry veterans.
Between the CEOs
CEO Chat: UXP Systems' Gemini Waghmare

8|26|16   |     |   (0) comments


Light Reading CEO Steve Saunders and UXP Systems CEO Gemini Waghmare discuss the strategic importance of digital identity for operators in the midst of transformation.
LRTV Custom TV
F5 Virtual Network Function Integrations With Partner Orchestration Platform

8|24|16   |   6:38   |   (0) comments


F5's Kishore Patnam, product manager for F5's service provider solutions, discusses why service providers are moving towards virtualization and how his clients are utilizing F5's solutions.
Between the CEOs
CEO Chat: Intel's Alexis Black Bjorlin

8|17|16   |   06:23   |   (0) comments


Join us for an in-depth interview between Steve Saunders of Light Reading and Alexis Black Bjorlin of Intel as they discuss the release of the company's Silicon Photonics platform, its performance, long-term prospects, customer expectations and much more.
Telecom Innovators Video Showcase
Accelerating Telecom Digital Transformation With Nominum DNS

8|1|16   |   12:04   |   (0) comments


Light Reading's Steve Saunders gets an update from Nominum CEO Gary Messiana on how his company is helping carriers on the digital transformation journey.
LRTV Custom TV
Reinventing Operations for a Virtual, Software-Defined World

7|28|16   |   5:23   |   (0) comments


Heavy Reading Senior Analyst Jim Hodges speaks with Accenture's Larry Socher and Matt Anderson about what service providers must do to transform their business to get the benefits of SDN and NFV including: leveraging DevOps, introducing real-time OSS and implementing analytics.
Women in Comms Introduction Videos
Fujitsu Sales Leader Shares Lessons Learned

7|27|16   |   5:12   |   (1) comment


As Fujitsu's only female sales leader, Annie Bogue knows the importance of asking for what you want, being flexible (she's been relocated five times), keeping a meticulous calendar, 'leaning in,' working harder than everyone else around you, being aware and more.
Telecom Innovators Video Showcase
VeEX Test & Measurement Solutions

7|25|16   |   08:57   |   (0) comments


Cyrille Morelle, president and CEO of VeEX Inc., talks test and measurement with Light Reading's Steve Saunders at BCE 2016. This includes innovative products such as VeSion Cloud-Based platform for network monitoring; MTTplus Modular Test platform for Access, Business, Carrier Ethernet, Transport and Core services; and OPX-BOX+ for Fiber Optics.
LRTV Custom TV
VeEX: Live From BCE 2016

7|25|16   |   03:20   |   (0) comments


VeEX's Senior Director of Business Development, Perry Romano, explains how VeEX provides tools to help install, maintain, monitor and manage network infrastructure efficiently and effectively. The portfolio of products on display include the RXT-6000, MTTplus and TX300s.
LRTV Custom TV
Real-Time Telemetry & Analytics for Intelligent SDN Orchestration

7|25|16   |   03:09   |   (0) comments


Packet Design CEO Scott Sherwood discusses how real-time network telemetry and analytics are enabling a new breed of SDN orchestration applications.
From the Founder
The Russo Report: Driving Disruption

7|25|16   |   07:44   |   (2) comments


In the first episode of a four-part series, Light Reading Founder and CEO Steve Saunders and Calix President and CEO Carl Russo drive around town discussing the disruptive mega-changes in the communications industry and where hope lies for service providers to meet the escalating demands of the cloud.
LRTV Custom TV
NetScout: Maximizing Enterprise Cloud for Digital Transformation

7|20|16   |   04:53   |   (0) comments


Light Reading Editor Mitch Wagner talks to NetScout CMO Jim McNiel about maximizing the benefits of enterprise cloud and digital transformation while minimizing potential pitfalls with a proper monitoring and instrumentation strategy.
Women in Comms Introduction Videos
Ciena's VP Offers a Career Crash Course

7|20|16   |   4:14   |   (2) comments


How did Ciena's Vice President of Sales, Angela Finn, carve out her career path? Simple, she tells WiC. She stayed true to her company, customers and principles. She shares her advice for women on how to be authentic and credible, as well as for companies that want to make a real change to their culture and practices.
Upcoming Live Events
September 13-14, 2016, The Curtis Hotel, Denver, CO
November 3, 2016, The Montcalm Marble Arch, London
November 30, 2016, The Westin Times Square, New York City
December 1, 2016, The Westin Times Square, New York, NY
December 6-8, 2016, The Westin Excelsior, Rome
May 16-17, 2017, Austin Convention Center, Austin, TX
All Upcoming Live Events
Infographics
Hot Topics
Cisco Developing 'Monica' Digital Assistant
Mitch Wagner, West Coast Bureau Chief, Light Reading, 8/22/2016
FirstNet: A Billion-Dollar Boondoggle?
Dan Jones, Mobile Editor, 8/26/2016
WiCipedia: Should Men Be Included? & Olympians Face Discrimination
Eryn Leavens, Special Features & Copy Editor, 8/26/2016
Google Fiber Can't Be Called a Failure
Carol Wilson, Editor-at-large, 8/26/2016
Google Fiber Downsizing Not Confirmed
Mari Silbey, Senior Editor, Cable/Video, 8/25/2016
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BETWEEN THE CEOs - Executive Interviews
Light Reading CEO Steve Saunders and UXP Systems CEO Gemini Waghmare discuss the strategic importance of digital identity for operators in the midst of transformation.
Join us for an in-depth interview between Steve Saunders of Light Reading and Alexis Black Bjorlin of Intel as they discuss the release of the company's Silicon Photonics platform, its performance, long-term prospects, customer expectations and much more.
Animals with Phones
Live Digital Audio

Bridging the tech skills gap is a major challenge for service providers and suppliers alike today – and the challenge is two-fold when it comes to increasing the number of women in the comms space. Level 3 Communications has made it a priority to overcome both challenges by implementing several unique programs focused on building the right candidates from within – in addition to filling the funnel by supporting STEM and other education programs. During this radio show, you’ll learn about these programs from Mary Beth McGrath, SVP of Global Talent Management at Level 3, and the best ways to bridge your own skills gap so that you are motivated and equipped for change. Plus you’ll have the chance to ask Mary Beth your questions live on the air.