Keysight N4391A 100G QPSK signal
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Video Source: www.youtube.com/watch?v=-HLgshh8I8U
A screen-video demonstration of how the Keysight N4391A Optical Modulation Analyzer analyzes, at up to 62.5GHz, dual polarization without polarization alignment, with supreme performance • http://www.keysight.com/find/N4391A
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