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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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"Just Right" IT: Backup and Recovery Solutions Tailor-Made for SMBs
sponsored by NTT ICT
VIDEO: If you're running an SMB, the lifeblood of your company is data. Tune into this video to learn about adaptive storage that safeguards data across your entire business and which integrates with your existing infrastructure. Additionally, learn how to evolve backup and recovery for new and emerging threats.
Posted: 05 Aug 2016 | Premiered: 30 May 2016


10 Signs That You Should Invest in a Cloud Management Platform
sponsored by Embotics
WHITE PAPER: This white paper uncovers ten signs that show you're ready to start investing in a cloud management platform to get your IT strategy and program back on track.
Posted: 04 Mar 2016 | Published: 29 Feb 2016


15 Top-Paying Certifications for 2016
sponsored by Global Knowledge
WHITE PAPER: This article provides a review of the 15 top-paying certifications. Included is a brief description of each, as well as the average salary each certification commands based on the 2016 IT Skills and Salary Survey conducted by Global Knowledge in the fall of 2015.
Posted: 23 Feb 2016 | Published: 23 Feb 2016

Global Knowledge

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 Mobile Workforce Report: Rise of the Mobile Worker
sponsored by Dimension Data
WHITE PAPER: Find out why competitive organizations must empower workers by offering a collaborative and flexible work environment.
Posted: 12 May 2016 | Published: 12 May 2016

TOPICS:  IT Management
Dimension Data

2016 Connected Enterprise Report
sponsored by Dimension Data
WHITE PAPER: Discover the trends, insights and strategies that leading companies are using to collaborate better in the digital age.
Posted: 12 May 2016 | Published: 12 May 2016

TOPICS:  IT Management
Dimension Data

2016 DevOps Salary Report
sponsored by Puppet
RESEARCH CONTENT: This report examines the results of the 2016 State of DevOps Report, particularly in connection with data collected on salaries. Access now so you can see how your own salary stacks up against others in your region and industry.
Posted: 02 Sep 2016 | Published: 02 Sep 2016


2016 Global Server Hardware, Server OS Reliability Report
sponsored by SAP/Lenovo/Intel
ANALYST REPORT: Explore the findings of the ITIC's 2016 Global Server Hardware and Server OS Reliability Survey, and discover what executives and IT managers from over 600 organizations are saying about the most common causes of downtime—and the most reliable servers on the market.
Posted: 09 Sep 2016 | Published: 31 Jul 2015


2016 ITSSM Vendor Evaluation
sponsored by ServiceNow
ANALYST REPORT: In this 2016 expert analysis, Gartner breaks down each vendor's strengths and cautions as well as focuses on vendors that offer not only IT service support functions but also next-generation support capabilities specific to mobility.
Posted: 30 Aug 2016 | Published: 24 Aug 2016


2016 State of DevOps Report
sponsored by Puppet
RESEARCH CONTENT: Discover how DevOps tools, practices, and cultural values are affecting IT teams and the organizations they serve. Plus, uncover 6 key findings from a comprehensive survey of thousands of technical professionals and learn how they can help you better understand the potential impact of DevOps in your organization.
Posted: 05 Jul 2016 | Published: 05 Jul 2016


2016 State of Storage for Virtualized Enterprises
sponsored by Tintri
WHITE PAPER: This year, 49% of respondents to a State of Storage study declared manageability their biggest concern – a 10% jump from last year! With virtualization changing the way we manage storage, numerous pains have popped up. Access this white paper to reap knowledge from feedback on these pains and concerns.
Posted: 20 Jun 2016 | Published: 20 Jun 2016


"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.

15 Popular IT and Business Certifications
sponsored by Global Knowledge
WHITE PAPER: This report reviews the 15 most popular certifications according to our more than 12,000 North American respondents to our annual IT Skills and Salary Survey. For each certification, you'll find a brief description, the average salary, and some insight into why it is popular.
Posted: 30 Apr 2014 | Published: 30 Apr 2014

Global Knowledge

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

2014 Cost of Cyber Crime Study
sponsored by Hewlett-Packard Enterprise
WEBCAST: Cyber crime is growing more common and more costly. Read this survey to see the numbers on exactly what you're facing.
Posted: 13 Mar 2015 | Premiered: Mar 13, 2015

TOPICS:  IT Management
Hewlett-Packard Enterprise

2016 State of Crowdsourced Innovation
sponsored by Spigit
WHITE PAPER: Read this report to discover the 2016 landscape of crowdsourced innovation, highlighting essential best practices for running sustainable innovation programs. Download now to learn why enterprises are tapping crowdsourcing as a way to innovate, and what returns you should expect.
Posted: 22 Jun 2016 | Published: 22 Jun 2016


2016 Veeam Availability Report
sponsored by Veeam Software
WHITE PAPER: To satisfy the ever demanding user, businesses must become always-on enterprises with 24/7/265 availability to their users. With hands tied, it's hard for IT managers to achieve this with pressure to perform under tight budgets. Access this white paper to learn about the true scope of these issues and how they should be addressed.
Posted: 02 Jun 2016 | Published: 02 Jun 2016

Veeam Software

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

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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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