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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


From The Founder
Cisco's Conrad Clemson, recently promoted to head up the company's Service Provider Apps & Platforms developments, talks to Light Reading's Founder and CEO Steve Saunders about how he's bringing cloud video, mobile and virtualization together to empower network operators.
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.
LRTV Custom TV
4.5G Evolution: Peter Zhou on Advanced MIMO Technologies & 5G Business Prep

2|25|17   |     |   (0) comments


In the process of service transformation, operators need to catch three major opportunities and start deploying in 4.5G networks, such as video, household broadband access and digital transformation of vertical industries. 5G is coming. Operators don't need to wait for it to happen but should progressively deploy 4.5G networks by introducing 5G-oriented ...
LRTV Custom TV
What WTTX Can Deliver

2|23|17   |     |   (0) comments


Mohamed Madkour explains the benefits of WTTX while Dimitris Mavrakis discusses the challenges of delivering home broadband access.
LRTV Custom TV
Huawei on Mobile Broadband

2|23|17   |     |   (0) comments


Mohamed Madkour shares his vision on MBB for the next three years.
LRTV Custom TV
Analysys Mason Talks About the Future of Digital Operations

2|23|17   |     |   (0) comments


The future of digital operations has three key aspects: 1. Highly automated operations for both service and network; 2. Highly converged BSS/OSS for business and resources; 3. Highly merged management and control for real-time cloud native operations.
LRTV Interviews
Software Trends in the Telecom Sector

2|23|17   |   03:40   |   (0) comments


Heavy Reading senior analyst James Crawshaw talks with Telecoms.com Editorial Director Scott Bicheno about trends and developments in the telecoms software sector and what to expect at MWC 2017.
LRTV Custom TV
Huawei's Pre-MWC Analyst Briefing 2017 Highlights

2|22|17   |     |   (0) comments


Huawei shares its vision for this year's MWC.
LRTV Interviews
MWC17: 5G, Cloud RAN & More

2|21|17   |   04:35   |   (0) comments


Ovum Senior Analyst Julian Bright talks to Scott Bicheno from Telecoms.com about all things MWC, including Cloud RAN, Huawei's pitch to the industry and the road to 5G.
LRTV Interviews
MWC 2017's Key 2-Letter Terms

2|20|17   |   08:29   |   (1) comment


5G, AI, VR... these are just some of the two-letter terms that will dominate show-floor chat at MWC 2017 in Barcelona, according to these two blow-hards (a.k.a. Scott Bicheno of Telecoms.com and Light Reading's Ray Le Maistre). And then there's PB...
LRTV Interviews
Key Trends for Mobile Operators in Developing Markets

2|20|17   |   06:37   |   (0) comments


Ovum's Matthew Reed talks to Scott Bicheno from Telecoms.com about the challenges and opportunities facing mobile operators in the developing markets of Africa and the Middle East.
LRTV Documentaries
YouTube Takes on Facebook Live-Streaming

2|17|17   |     |   (0) comments


Popular 'YouTubers' will be the first to get the new service on their smartphones. You have been warned.
LRTV Custom TV
Open Source NFV/SDN Automation

2|17|17   |   05:54   |   (0) comments


AT&T ECOMP (Enhanced Control, Orchestration, Management and Policy) code is transitioning into the Linux Foundation for placement into open source. In this video, Carol Wilson provides an update on the maturation of open source ECOMP and meets with industry leaders from AT&T, Bell Canada, Orange, Linux Foundation and Amdocs to discuss what this means for the ...
LRTV Documentaries
Uber & NASA Collaborate on Flying Car Project

2|16|17   |     |   (0) comments


Is Uber for real? Well, it's hired NASA engineer Mark Moore to lead the project, and he wouldn't come cheap.
Upcoming Live Events
March 21-22, 2017, The Curtis Hotel, Denver, CO
March 22, 2017, The Curtis Hotel, Denver, CO
March 22, 2017, The Curtis Hotel, Denver, CO
May 15-17, 2017, Austin Convention Center, Austin, TX
May 15, 2017, Austin Convention Center - Austin, TX
June 6, 2017, The Joule Hotel, Dallas, TX
All Upcoming Live Events
Infographics
With the mobile ecosystem becoming increasingly vulnerable to security threats, AdaptiveMobile has laid out some of the key considerations for the wireless community.
Hot Topics
Uber's HR Nightmare: Company Investigates Sexual Harassment Claims
Sarah Thomas, Director, Women in Comms, 2/21/2017
Broadband Has a Problem on the Pole
Mari Silbey, Senior Editor, Cable/Video, 2/21/2017
Verizon to Start Fixed 5G Customer Trials in April
Dan Jones, Mobile Editor, 2/22/2017
Sprint to Go Gigabit Crazy at MWC!
Dan Jones, Mobile Editor, 2/22/2017
MANO Marriage: ECOMP, Open-O Converge as ONAP
Carol Wilson, Editor-at-large, 2/23/2017
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BETWEEN THE CEOs - Executive Interviews
Light Reading founder and CEO Steve Saunders chats with Sportlogiq CEO Craig Buntin about sports data analysis.
Eyal Waldman, CEO of Mellanox Technologies, speaks to Steve Saunders, CEO of Light Reading, for an exclusive interview about the 100 GB cable challenge, cybersecurity and much more.
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Live Digital Audio

Playing it safe can only get you so far. Sometimes the biggest bets have the biggest payouts, and that is true in your career as well. For this radio show, Caroline Chan, general manager of the 5G Infrastructure Division of the Network Platform Group at Intel, will share her own personal story of how she successfully took big bets to build a successful career, as well as offer advice on how you can do the same. We’ll cover everything from how to overcome fear and manage risk, how to be prepared for where technology is going in the future and how to structure your career in a way to ensure you keep progressing. Chan, a seasoned telecom veteran and effective risk taker herself, will also leave plenty of time to answer all your questions live on the air.