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Beginners' Guides
Latest Content
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


From The Founder
Light Reading sits down at CES with the head of Cisco's service provider video business, Conrad Clemson, to discuss how NFV and cloud security relate to video, the challenge of managing 4K/8K traffic, the global expansion of Netflix and virtual reality.
Flash Poll
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CLOUD / MANAGED SERVICES: Prepping Ethernet for the Cloud
Moderator: Ray LeMaistre Panelists: Jeremy Bye, Leonard Sheahan
LRTV Documentaries
All Change in Video

2|11|16   |   33:12   |   (1) comment


At this moderated panel at 2020 Vision in Dublin, Alan Breznick, Cable/Video Practice Leader of Light Reading, sits down with Jeff Finkelstein, director of network architecture at Cox Communications, to discuss the rapidly changing video market.
LRTV Custom TV
Hosting in Ireland, Past & Present

2|10|16   |   16:07   |   (0) comments


Garry Connolly, president of Host in Ireland, presents the keynote at Light Reading's 2020 Vision Executive Summit in Dublin.
Women in Comms Introduction Videos
What's Hot in Mobile Commerce?

2|10|16   |   12:18   |   (1) comment


Claire Maslen, financial services relationship manager at the GSMA, talks about the development of the digital commerce sector and the types of relationships that mobile operators are developing to further their m-commerce strategies.
LRTV Documentaries
EANTC Tests Nokia IP Routing & Mobile Gateway VNFs for Real World Deployment

2|9|16   |   5:08   |   (1) comment


Nokia obtained validation of its virtualized router and virtualized mobile gateway capabilities through rigorous testing performed by EANTC. The results set a new industry benchmark for outstanding performance, scalability, resiliency and manageability. Nokia VNFs are ready for telco cloud deployment, so that service providers can accelerate mobile, business and ...
Between the CEOs
CEO Chat With Level 3's Jack Waters

2|8|16   |   26:15   |   (1) comment


Light Reading CEO and founder Steve Saunders sits down with Level 3 Communications' CTO Jack Waters to discuss hot topics like virtualization, 4K and the future of telecom...
LRTV Custom TV
The Composable Telco

2|8|16   |   24:46   |   (0) comments


Heavy Reading's Principal Analyst Caroline Chappell presents the keynote at Light Reading's 2020 Vision Executive Summit in Dublin.
LRTV Custom TV
Join Us at the Digital Operations Transformation Summit

2|4|16   |   03:52   |   (0) comments


The Digital Operations Transformation Summit on February 21, 2016 at the Crowne Plaza Barcelona Fira Centre will bring together 50 senior executives to engage in a unique debate on the opportunities and challenges presented by the transformative evolving digital landscape. RSVP now at events@lightreading.com.
LRTV Custom TV
Making the Test: ADVA Ensemble Connector vs. Open vSwitch

2|4|16   |   01:28   |   (0) comments


Light Reading, in partnership with EANTC, recently tested ADVA's Ensemble Connector, which replaces open vSwitch and offers carrier-grade capability and interoperability. The test results strengthen ADVA's credibility as a provider in the virtualization space.
LRTV Custom TV
Bridging the Gap Between PoCs & Deployment in NFV

2|4|16   |   31:50   |   (0) comments


Charlie Ashton of Wind River presents the keynote at Light Reading's 2020 Vision executive summit in Dublin.
Between the CEOs
CEO Chat With Mike Aquino

2|3|16   |   17:34   |   (0) comments


The former CEO of Overture Networks, Mike Aquino, discusses why truly open virtualization solutions provide service providers with the greatest choice.
Shades of Ray
MWC: Buckle Up for 5G & the IIoT

2|2|16   |   02:28   |   (0) comments


This year's Mobile World Congress looks set to be a 5G land grab and a chance to get down and dirty with the Industrial Internet of Things (IIoT) – but what will the 5G discussions actually be about?
LRTV Custom TV
Case Study: Building China's Next-Gen TV Networks

2|2|16   |   5:01   |   (0) comments


With over 2 billion viewers worldwide, Shenzhen Media Group is one of China's largest content producers. By partnering with Huawei and Sobey, SZMG was able to modernize media operations with the Converged News Center, a production studio that is a model for next-generation workflows.
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Hot Topics
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It's Time to Integrate OTT Video
Alan Breznick, Cable/Video Practice Leader, 2/8/2016
Andreessen Facepalms on Facebook Free Basics
Mitch Wagner, West Coast Bureau Chief, Light Reading, 2/10/2016
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BETWEEN THE CEOs - Executive Interviews
Light Reading CEO and founder Steve Saunders sits down with Level 3 Communications' CTO Jack Waters to discuss hot topics like virtualization, 4K and the future of telecom...
The former CEO of Overture Networks, Mike Aquino, discusses why truly open virtualization solutions provide service providers with the greatest choice.
Live Digital Audio

Broadband speeds are ramping up across Europe as the continent, at its own pace, follows North America towards a gigabit society. But there are many steps to take on the road to gigabit broadband availability and a number of technology options that can meet the various requirements of Europe’s high-speed fixed broadband network operators. During this radio show we will look at some of the catalysts for broadband network investments and examine the menu of technology options on offer, including vectoring and G.fast for copper plant evolution and the various deployment possibilities for FTTH/B.