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  |  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


Flash Poll
From The Founder
Network architects aiming to upgrade their networks to support agile, open, virtualized services in the 21st century need to consider new criteria when choosing between technology suppliers.
Live Streaming Video
CLOUD / MANAGED SERVICES: Prepping Ethernet for the Cloud
Moderator: Ray LeMaistre Panelists: Jeremy Bye, Leonard Sheahan
Wagner’s Ring
Business Value Trumps Moving Bits for Virtual Networks

7|7|15   |   01:22   |   (0) comments


At the recent Open Networking Summit, carriers described how they're focused on increasing revenue rather than just improving technology. This requires cultural changes, which can be more difficult than technology changes.
LRTV Custom TV
VeEX: Live from the Big Telecom Event 2015

7|7|15   |   2:28   |   (0) comments


VeEX's Carl Goldschmidt provides new product updates, including the RXT modular test platform and TX300s. With the latest technology in pluggable physical interfaces, the RXT platform combines multiple technologies with testing range from 10 Mbit/s to 100 Gbit/s. The TX300s is an "All-in-one" advanced multi-service test platform from 64 Kbit/s to 100 Gbit/s that ...
LRTV Custom TV
Light Reading Interviews MRV: 2015 Big Telecom Event

7|7|15   |   3:45   |   (0) comments


Scott St. John, SVP of Global Sales & Service, discusses MRV's customer-centric culture, the new OptiPacket OP-X1 100G access platform, and recent customer wins with Light Reading at BTE 2015.
LRTV Custom TV
Procera: Enhancing the Subscriber Experience

7|7|15   |   4:53   |   (0) comments


Hear from Procera on the latest in Subscriber Experience solutions. Learn how Procera's RAN Perspective technology helps network operators monitor and manage network traffic, in real-time, solving congestion and other network issues.
Between the CEOs
HP's Prodip Sen: The NFV Journey

7|7|15   |   21:39   |   (1) comment


Prodip Sen, CTO of the Network Functions Virtualization (NFV) business unit at HP, talks to Light Reading founder and CEO Steve Saunders about the four stages of the NFV journey.
LRTV Documentaries
Leading Lights 2015 Winners' Video

7|7|15   |   08:34   |   (2) comments


Hear what the Leading Lights 2015 winners had to say after they picked up their awards in Chicago.
LRTV Documentaries
PSA: The Perils of a Hyper-Connected Society

7|6|15   |   1:38   |   (0) comments


A public service announcement calling attention to the perils of a hyper-connected society.
LRTV Interviews
Guavus Takes Analytics on the Road

7|6|15   |   4:09   |   (4) comments


Guavus CEO Anukool Lakhina tells Light Reading CEO and founder Steve Saunders how the analytics tools developed for telcos are applicable to the transportation industry.
Telecom Innovators Video Showcase
Mellanox's New 25/50/100Gb/s Ethernet Products

7|6|15   |   2:44   |   (0) comments


Mellanox offers a complete 10/25/40/50/56/100Gbit/s solution that delivers industry-leading performance, scalability, reliability and efficiency for optimal application performance and data center ROI.
Telecom Innovators Video Showcase
Arista's CloudVision

7|6|15   |   6:01   |   (0) comments


Anshul Sadana answers questions from Steve Saunders, Light Reading’s founder and CEO, about Arista’s CloudVision, a global cloud network controller for workload orchestration and workflow automation delivering a turnkey solution for cloud networking.
LRTV Custom TV
Red Hat Demo

7|2|15   |   10:53   |   (0) comments


Red Hat's Nicolas Lemieux demonstrates how Red Hat is driving innovation through open source communities.
LRTV Custom TV
Red Hat's Approach to OpenStack Adoption

7|2|15   |   5:17   |   (0) comments


Red Hat's Radhesh Balakrishnan outlines his company's open source strategy for both enterprises and telcos.
Upcoming Live Events
September 16-17, 2015, The Westin Galleria Dallas, Dallas, TX
September 16, 2015, The Westin Galleria Dallas, Dallas, TX
September 29-30, 2015, The Westin Grand Müchen, Munich, Germany
October 6, 2015, The Westin Peachtree Plaza, Atlanta, GA
October 6, 2015, Westin Peachtree Plaza, Atlanta, GA
October 14-15, 2015, New Orleans Ernest N. Morial Convention Center, New Orleans, LA
November 5, 2015, Hilton Santa Clara, Santa Clara, CA
All Upcoming Live Events
Infographics
Equinix walks through the past four digital economy eras from computing to network to connected to today's interconneted world.
Hot Topics
What's a Gigabit Good For?
Carol Wilson, Editor-at-large, 7/1/2015
IBM Sows Seed for New Telco Unit, Plans NFV/SDN Push
Ray Le Maistre, Editor-in-chief, 7/6/2015
What the Helio? MVNO Is Back After First Flop
Sarah Thomas, Editorial Operations Director, 7/6/2015
FCC Chairman Talks Up SDN/NFV
Mari Silbey, Senior Editor, Cable/Video, 7/2/2015
A&E Launches Lifetime OTT Service
Alan Breznick, Cable/Video Practice Leader, 7/3/2015
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BETWEEN THE CEOs - Executive Interviews
Prodip Sen, CTO of the Network Functions Virtualization (NFV) business unit at HP, talks to Light Reading founder and CEO Steve Saunders about the four stages of the NFV journey.
Casa Systems has been going from strength to strength over the last couple of years. In 2013, it became the first vendor to ship an integrated CCAP device -- the ...
Cats with Phones