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The NRT-96083X is a PMD Source targeted at advanced modulation formats such as 40G/s DQPSK and 100G/s DP-QPSK. These formats have narrower optical bandwidth requiring more PMD stress to measure transponder tolerance. Therefore, the optics were redesigned for our next generation PMD Sources, resulting in the X-series: simultaneously increasing both PMD and optical bandwidth. The maximum DGD for the NRT-96083X is 96 ps while the PMD spectrum is 83 GHz
With the NRT-96083X you can determine:
- the performance degradation due to DGD, second-order PMD (SOPMD) as well as
higher-orders,
- the interactions of noise, non-linearities, channel spacing, chromatic dispersion, etc. with PMD,
- the PMD outage for any fiber PMD value in minutes/year,
for your transmitter, receiver, system and digital EDC design and development.
Download the PMDS Demonstration Software
This stable, repeatable, and versatile source removes the PMD statistics and dynamics from your experimentation allowing deterministic testing of the PMD impairment for DGD and SOPMD. NRT also offers a method to reintroduce the statistics after your PMDS measurements, in the data analysis stage. (For PMD tolerance testing methodology see our Technical Library section.)
 The NRT-96083X can repeatably access more first and second-order PMD states than other PMD source designs providing greater flexibility and capabilities to meet your stringent test requirements.
For example, in the figure at the right, the axes and the arching blue curve bound the accessible 2-D PMD states of the NRT-96083X, coherent PMDS. The range of the NRT-96083X is overlaid on the joint probability density function for a〈τ〉=30 ps fiber (shown contours).
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