Title :
Optical reference receiver calibration for real time oscilloscopes
Author :
Pickerd, John Joseph
Author_Institution :
Tektronix Inc., Beaverton, OR, USA
Abstract :
The filter is applied to the acquired waveform data from the O/E converter. This is done at the maximum real time sample rate of the oscilloscope. Lower frequency standards are highly over sampled. Therefore, floating point math is used for the filter convolution. This over sampling allows the bandwidth of the oscilloscope channel to operate as an anti-alias filter. From this point the filtered data is placed into a waveform database to create the source for the eye diagram that will appear on screen with the optical mask standard.
Keywords :
FIR filters; SONET; calibration; convolution; frequency standards; masks; optical fibre testing; optical receivers; oscilloscopes; telecommunication standards; O/E converter; acquired waveform; anti-alias filter; filter convolution; floating point math; frequency standards; maximum real time sample rate; optical mask standard; oscilloscope channel; sampling mode algorithm; triggered acquisitions; waveform database; Bandwidth; Calibration; Convolution; Databases; Frequency; Optical filters; Optical receivers; Oscilloscopes; Sampling methods; Signal analysis;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036719
