Light Reading
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  |  148 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


Flash Poll
LRTV Custom TV
Optimizing SDN & NFV Architectures Through Application Awareness

4|23|14   |   6:24   |   (0) comments


Jerome Tollet, CTO at Qosmos, explains how network equipment vendors and operators deploying SDN and NFV can take advantage of network intelligence delivered by DPI to strengthen products and services.
LRTV Custom TV
Wind River Demonstrates Carrier-Grade Software for NFV

4|22|14   |   5:00   |   (0) comments


Wind River VP of Product Management, Glenn Seiler, takes a look the industry's first and only complete NFV software platform designed specifically for the unique carrier-grade and high-performance needs of telecom networks.
LRTV Documentaries
Cable Eyes Big Technology Shifts

4|16|14   |   03:02   |   (4) comments


US cable engineers are facing a lot of heavy lifting in the coming years, notes Light Reading Cable/Video Practice Leader Alan Breznick.
LRTV Custom TV
Maximizing Customer Experience & Assuring Service Delivery in an IP World

4|15|14   |   4:57   |   (0) comments


Steven Shalita, VP of Marketing, NetScout Systems, Inc., discusses the challenges cable/MSO operators face in assuring the delivery of new IP-based services. Key points include the value of proactively managing performance, and using rich analytics and operational intelligence to better understand service and usage trends, make smarter business decisions and ...
LRTV Documentaries
Bye-Bye DVD: Consumers Embrace Digital Video

4|10|14   |   04:17   |   (7) comments


Veteran video analyst Colin Dixon, founder and principal analyst of nScreenMedia, says research shows 56% are using digital video already.
LRTV Documentaries
Video: TW Cable Puts Multicast Gateways to the Test

4|8|14   |   04:13   |   (1) comment


Tom Gonder, a chief architect at Time Warner Cable, explains how its trial of multicast gateways is impacting IP-based video plans.
LRTV Custom TV
Managing & Monetizing Big Data in Operator Environments

4|7|14   |     |   (1) comment


At Mobile World Congress, Gigamon's Director of Service Provider Solutions, Andy Huckridge, and Heavy Reading Analyst Sarah Wallace discuss the 'big data' issues facing carriers and operators today.
LRTV Huawei Video Resource Center
Data Center Energy – Build Your Data Center in a Modular Way

4|7|14   |   2:13   |   (0) comments


Dr. Fang Liangzhou, VP Network Energy Product Line, shared his thoughts about the challenges for data centers during CeBIT 2014.
LRTV Huawei Video Resource Center
Agile Network Solution – An Overview of Huawei's Agile Network Solution

4|7|14   |   2:31   |   (0) comments


Ajay Gupta, Director of Product Marketing, Networking Product Line, gives an overview of the Agile Network Solutions during CeBIT 2014.
LRTV Huawei Video Resource Center
Huawei’s eLTE Voice Trunking, Video and Data Applied for Railways

4|7|14   |   1:38   |   (0) comments


Gottfried Winter is the Sales Director at Funkwerk, a German specialist in GSM-r terminals and a long-time partner of Huawei. At CeBIT 2014, Winter talks to Light Reading about this partnership and the integration of enhanced voice trunking, video and data functions.
LRTV Huawei Video Resource Center
LeaseWeb Speaks Highly of Huawei's Datacenter Products

4|7|14   |   1:37   |   (0) comments


Rene Olde Olthof, Operations Director LeaseWeb, talks about the next data center transformation during CeBIT 2014.
LRTV Documentaries
Comcast: Reshaping the Cable Network Architecture

4|3|14   |   07:11   |   (8) comments


Shamim Akhtar, Comcast's architect and senior director of network strategy, explains why the cable company is moving to a more distributed network architecture.
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