Search results

This application note discusses in-band optical signal-to-noise ratio (OSNR) testing, more specifically when there are several ROADMs in a network.

This application explains EXFO's offeringfor commissioning, turning-up and qualifying 10 GbE LAN services end-to-end over OTN.

This application note examines the basic technical aspects of MPLS and the testing needs associated with deploying and maintaining such a network.

This article demonstrates how OSNR can be derived, for each individual channel, from an optical spectrum measurement to obtain indirect information about the performance of these channels and hence of...

This application note presents the FOT-930 MaxTester, reducing the need for several test instruments, reducing the chance of error, reducing training time, while saving lots of money.

This article describes methods to optimize OTDR measurement parameters by presenting processes and key parameters.

This application note presents EXFO's powerful tool that simplifies the field engineer’s turn-up and troubleshooting activities for SONET/SDH networks, removing the complexity associated with these ne...

This application note demonstrates how EXFO's PPM-350B enables the user to accurately locate the problem by measuring all signals to verify if each one is still within specifications.

This application note demonstrates how linearity at the far end of an OTDR trace is very important to guarantee proper link loss, event loss and attenuation readings.

This application note discusses how EXFO’s FTB-8120NG/8130NG Transport Blazer, with their add/drop Ethernet interface feature in particular, can help service providers and system vendors satisfy these...