Product Description:
The N4391A is a high end turn-key optical modulation analyzer for advanced research in single and multi-carrier 400 Gbit/s and 1Tbit/s complex modulated transmission systems. It is based on the latest Z-Series Keysight oscilloscopes, a 40 GHz dual polarization coherent receiver and optical modulation vector signal analysis software offering most flexible analysis tools and smart setup for easiest instrument setup.
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4x 33 GHz system bandwidth, 4 x 40 GHz optical receiver bandwidth
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Specified typical system noise floor 1.8% rms EVM
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66 Gbaud symbol rate
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264 Gbit/s for QPSK, 512 Gbit/s for QAM 16
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Analysis span 66 GHz
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Optical wavelength range 1528 nm to 1630 nm
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Absolute wavelength accuracy +/- 5 pm typical
Features:
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Fully integrated in Vector Signal Analysis software with smart setup
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Analysis software also available as PC stand-alone version
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User configurable APSK and OFDM demodulator
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Modulation-format transparent polarization alignment
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Clearly structured measurement results
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Optical characterization results for each polarization plane separately
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Optical summary results for complete signal
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BER and Q factor separated for each polarization plane and overall signal
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Freely configurable screen layout
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Internal PMF switch to select internal or external local oscillator laser for best long term test results
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Free selection and sequence of DSP algorithms
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Various CD and PMD compensation and measurement algorithms
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Integration of user DSP algorithm with the same freedom as Keysight algorithms