Test & Measurement


Optical spectrum test tool

14 May 2014 Test & Measurement

Exfo announced what is believed to be the world’s first coherent Pol-Mux 40G/100G optical signal-to-noise ratio (OSNR) testing software, which is available as an option on its FTB/IQS 5240S-P and FTB/IQS-5240BP optical spectrum analysers (OSA).

More and more operators are deploying 40G or 100G coherent systems on metro and long haul dense wavelength-division multiplexing (DWDM) networks, to meet the ever increasing demand for bandwidth. Pol-Mux OSNR and the use of a Pol-Mux OSA have become an essential requirement for commissioning and troubleshooting networks since recent 40G/100G coherent systems featuring polarisation multiplexing have made it impossible to carry out OSNR measurements with traditional methods like the IEC method (out-of-band) or in-band methods.

The WDM-Aware Pol-Mux software performs OSNR measurement of coherent channels based on ASE noise, and provides automation of OSNR measurements based on the channel turn-off method.

For more information contact Chris Nel, Lambda Test Equipment, +27 (0)12 349 1341, [email protected], www.lambdatest.co.za



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