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Measurement Reference Parameters and Methods
CSA8000B & TDS8000B User Manual
B-67
The following measurement parameters are used when approximating Optical
Modulation Amplitude (OMA) on N RZ waveforms. As shown, OMA on NRZ
waveforms is determined from the means of histograms of the data from level 1
and level 0, taken on a vertical slice through the NR Z eye crossing. This method
gives an approximation of Optical Modulation Amplitude of an NRZ waveform;
Optical Modulations Amplitude measurements are primarily defined for Pulse
signals.
Vertical slice
P1 (histogramat logic high)
P1 (histogramat logic low)
Figure B- 13: NRZ Crossings (OMA)
NRZ Crossings ( OMA)