New from Agilent Technologies is a real-time optical modulation analyser with a bandwidth of 63 GHz. The new instrument allows researchers to characterise the latest coherent receivers and ultra-fast transmitters with a sample rate of 160 GSps at 63 GHz electrical bandwidth.
The system is capable of real-time sampling on four channels, each with 33 GHz bandwidth, in a single oscilloscope. It includes comprehensive tools to analyse and quantify the integrity of a vector-modulated signal for error-vector magnitude, quadrature error and other impairments.
The N4391A offers measurement and compensation of the link’s in-channel chromatic dispersion and first-order polarisation mode dispersion by analysing the received signals, granting engineers deep insight into the root cause of constellation distortions beyond 32 Gbaud.
For flexibility, users can process the raw digitised data coming from the instrument’s optical coherent receiver using the Microsoft .NET framework and include the results as a user-provided library.
For flexible data analysis, customers can include their algorithms in the burst-mode processing system of the N4391A. The analyser can handle any number of algorithms in a user-selectable sequence.
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