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ALSO CALLED: Wavelength-division Multiplexing, WDM, Coarse Wavelength Division Multiplexing, Wave Division Multiplexing, Coarse Wave Division Multiplexing
DEFINITION: Wavelength-division multiplexing (WDM) is a method of combining multiple signals on laser beams at various infared (IR) wavelengths for transmission along fiber optic media. Each laser is modulated by an independent set of signals. Wavelength-sensitive filters, the IR analog of visible-light color filters, are used at the receiving end.WDM is similar to frequency-division multiplexing (FDM). But instead  … 
Definition continues below.
CWDM Reports
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15 SIEM Products Analyzed and Reviewed
sponsored by IBM
WHITE PAPER: This resource objectively evaluates fifteen SIEM technologies and provides you with a detailed report of each one.
Posted: 24 Jun 2015 | Published: 25 Jun 2014


2014 Egon Zehnder European Board Diversity Analysis
sponsored by
RESEARCH CONTENT: For the first time Europe now leads the world in board diversity – though numbers of female executives on boards remain stubbornly low and this is a particular issue in technology, this study reveals.
Posted: 10 Oct 2014 | Published: 10 Oct 2014

2015 Guide to WAN Architecture and Design2015 Guide to WAN Architecture and Design
sponsored by Viptela
WHITE PAPER: This white paper discusses how you can upgrade your WAN architecture to meet today's business needs.
Posted: 22 Sep 2015 | Published: 30 Jun 2015


2015 Report: Top Priorities for IT Infrastructure
sponsored by Viadex
WHITE PAPER: In the following white paper, learn where the priorities for tomorrow's IT infrastructure lie and what gaps exist between firms that are successfully transforming traditional IT functions and those that have yet to begin. Read on and learn how you must change your IT infrastructure to be prepared for the future market.
Posted: 18 Sep 2015 | Published: 18 Sep 2015


2015 State of the Sysadmin Report
sponsored by Opsview Inc
WHITE PAPER: According to a recent survey, system administrators (sysadmins) know that they're important, but many feel that aren't valued by their co-workers. This report reveals the full results and contains key advice that will help sysadmins move up the ladder and command a higher salary increase.
Posted: 07 Oct 2015 | Published: 07 Oct 2015

Opsview Inc

2015 State of the WAN Report: Emergence of Software-Defined WAN
sponsored by Citrix
WHITE PAPER: In this e-book, you will access the current state of the WAN for 2015, learn why WAN budgets are looking up, and see how much interest and momentum software-defined WAN (SD-WAN) is garnering. Read this report now to get an inside look at the factors driving and inhibiting change in the WAN.
Posted: 14 Sep 2015 | Published: 14 Sep 2015


3 Key Insights of UC&C Complexity
sponsored by PGi
WHITE PAPER: This exclusive white paper highlights the 3 complex forces of UC&C complexity and how to work around them. Read on to learn more.
Posted: 25 Feb 2015 | Published: 25 Feb 2015


3 Phases of Your Journey to IT as a Service - Where Are You on Your Journey
sponsored by VMware
RESOURCE: Take a look at this infographic for the three phases of your journey to IT-as-a-Service. Learn about its benefits, including reducing data center costs by 30%.
Posted: 01 Jul 2015 | Published: 31 Mar 2013


3 Things in 3 Years: Innovating A Digital Strategy for the Financial Industry
sponsored by Hewlett Packard Enterprise
WHITE PAPER: In this white paper, learn the three factors to building a digital strategy for success in the next three years.
Posted: 10 Feb 2015 | Published: 07 Jan 2015

Hewlett Packard Enterprise

4 Critical Steps for IT Uptime, Security, and Connectivity
sponsored by CyrusOne
WHITE PAPER: To accommodate customer demands, increasing amounts of data, and changing regulations, your business needs to stay ahead of the curve. This white paper explores how colocation can help you do just that, with high levels of network flexibility and security.
Posted: 12 Mar 2015 | Published: 12 Mar 2015


4 Customers who never have to refresh their PCs again
sponsored by Citrix
CASE STUDY: Access this white paper to explore the journey of four companies who reallocated their annual PC refresh budget into a cutting-edge solution that delivers employee mobility -- paired with IT management efficiency and corporate security -- all within, or under, the standard yearly budget allocated to replace outdated PCs.
Posted: 13 Nov 2015 | Published: 13 Nov 2015


4 Data Traffic Security Challenges Exposing Enterprises to Hack Attacks
sponsored by Certes Networks
WHITE PAPER: This white paper discusses the 4 major points of weakness that your enterprise needs to prioritize in 2015 in order to defend your business-critical data from hackers.
Posted: 12 Feb 2015 | Published: 22 Jan 2015

Certes Networks

"How Can I Assure the Reliability of Complex, Mission Critical Applications and Deliver a Flawless End-User Experience?"
sponsored by CA Technologies.
WHITE PAPER: As end-users continue to demand faster services, IT departments are struggling to keep with these needs. This guide explores how crucial application performance management is for the end-user experience and how to deploy such a strategy across a multitude of platforms.
Posted: 09 Jan 2014 | Published: 31 Dec 2013

CA Technologies.

10 Common Problems that Application Performance Management Helps You Solve
sponsored by Riverbed Technology, Inc.
WHITE PAPER: This white paper breaks down the top ten quality and performance issues that application performance management can help to solve by detecting applications' performance problems and their causes.
Posted: 01 Aug 2014 | Published: 31 Dec 2013

Riverbed Technology, Inc.

10 Requirements for Optimizing Your Network for Mobility
sponsored by Aerohive Networks
WHITE PAPER: This white paper explores what it means to be a mobile-first enterprise and what networks are needed to accommodate the modern corporate user. Read on to discover the potential issues IT faces and a roadmap to start implementing the ideal access network for a mobile-first enterprise.
Posted: 16 Jul 2013 | Published: 01 Jul 2013

Aerohive Networks

10 Things to Consider when Choosing a Cloud Provider
sponsored by XO Communications
WHITE PAPER: Read up on the top 10 things to consider when choosing a cloud provider that will meet your business needs, and allow for an easy transition from your physical data center to a virtualized one.
Posted: 22 Oct 2013 | Published: 30 Apr 2012

XO Communications

10 Ways for Developers to Benefit from Application Performance Management Solutions
sponsored by Riverbed Technology, Inc.
WHITE PAPER: This white paper covers ten key strategies for developers looking to improve the quality and performance of their software through application management (APM) solutions.
Posted: 01 Aug 2014 | Published: 31 Dec 2013

Riverbed Technology, Inc.

10GbE and FCoE and DCB: Ready for the Evolution of SAN Fabrics?
sponsored by Dell, Inc.
EZINE: This article will provide an overview of the reasons Data Center Bridging (DCB) is being developed and how it can improve networking in the data center for applications, servers, and storage.
Posted: 04 Feb 2010 | Published: 01 Feb 2010

Dell, Inc.

2012 Network Management Trends
sponsored by CA Technologies.
EGUIDE: The network is an ever-evolving aspect of your computing environment. Keeping up with the changes is vital to maintaining an efficient workplace, but can be a challenge for even the most experienced network manager. However, knowing what to expect in the coming year can help you try to stay ahead of the game.
Posted: 09 Mar 2012 | Published: 09 Mar 2012

CA Technologies.

2014 Cloud Guide: Insights for a Great Migration
sponsored by Windstream Communications
RESOURCE: This guide explores some trends in cloud computing and outlines why many businesses are moving to the cloud.
Posted: 25 Jun 2014 | Published: 25 Jun 2014

Windstream Communications

22 Technical Considerations for Evaluating a Defragmentation Solution for Enterprise Workstations
sponsored by Diskeeper Corporation
WHITE PAPER: This paper compares the enterprise-targeted technologies in the Diskeeper performance software product line with the basic defragmentation solution offered in Windows’ more recent operating system releases. It outlines 22 considerations and solutions for defragmentation which is critical to the performance of every windows system.
Posted: 16 Nov 2010 | Published: 16 Nov 2010

Diskeeper Corporation

3 Bad Mistakes that will Sabotage Your ITSM Program
sponsored by ServiceNow
EGUIDE: This expert e-guide covers three crucial mistakes you must avoid for IT service management implementation and details how one company made ITSM fun.
Posted: 14 Apr 2014 | Published: 14 Apr 2014


3 Quick Tips for a Software-Defined Data Center Strategy
sponsored by VMware, Inc.
EGUIDE: This e-guide presents three expert tips to creating a software-defined data center strategy.
Posted: 16 Aug 2013 | Published: 16 Aug 2013

VMware, Inc.

3 Things you need to know about the cloud
sponsored by Channel Transformation Alliance
WHITE PAPER: Read this white paper to explore 3 critical steps every organization must take in order to make the transformation necessary to support the specific changes required to grow a successful Cloud practice.
Posted: 20 Dec 2011 | Published: 20 Dec 2011

Channel Transformation Alliance

3 Tips for Planning Data Center Transformation
sponsored by HP
VIDEO: To embrace the new instant-on, mobile, interconnected business world, IT organizations need to transform their infrastructure and data centers to support agility. This video series features 10 expert tips for planning your IT transformation. Check out this brief video for tips 7-5.
Posted: 12 Oct 2011 | Premiered: 11 Oct 2011

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CWDM DEFINITION (continued): …  of taking place at radio frequencies (RF), WDM is done in the IR portion of the electromagnetic (EM) spectrum. Each IR channel carries several RF signals combined by means of FDM or time-division multiplexing (TDM). Each multiplexed IR channel is separated, or demultiplexed, into the original signals at the destination. Using FDM or TDM in each IR channel in combination with WDM of several IR channels, data in different formats and at different speeds can be transmitted simultaneously on a single fiber.In early WDM systems, there were two IR channels per fiber. At the destination, the IR channels … 
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