With the increasing sophistication of communication networks comes the need for equally powerful test and measurement equipment designed to meet the challenges of DWDM. Whether testing involves manufacturing, installing and commissioning network fiber, or managing, maintaining, monitoring and troubleshooting performance elements, EXFO’s FTB-5240* and FTB-5240B* Optical Spectrum Analyzers (OSAs) are ready to handle any situation. In addition, the FTB-5240B* OSA gives you the best of two worlds: the impressive specifications of a lab-quality instrument in a state-of-the-art, field-ready modular unit for fast, accurate and efficient fiber characterization.

This application note provides an overview of the new OSA software feature and how EXFO's FTB-5240 and FTB-5240B are equipped to meet the challenges of DWDM.

This application note presents in-band OSNR measuring techniques become essential to accurately measure the OSNR in reconfigurable networks.

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

This paper reviews the challenges brought forth by the advent of 40G transmission and describes the importance of each test, as well as where and how they should be performed.

This paper introduces the concept of OSNR and its importance, as well as the consequences of poor OSNR on a network; it also examines the current perception of OSAs in the marketplace.

This article introduces the polarization-resolved optical spectrum OSNR measurement method, a breakthrough approach that represents a powerful tool for the measurement of in-channel OSNR.