Title :
Effects of crosstalk in demultiplexers for photonic analog-to-digital converters
Author :
Williamson, R.C. ; Juodawlkis, P.W. ; Wasserman, J.L. ; Betts, G.E. ; Twichell, J.C.
Author_Institution :
Lincoln Lab., MIT, Lexington, MA, USA
fDate :
2/1/2001 12:00:00 AM
Abstract :
Time interleaving of samples digitized by a parallel array of analog-to-digital (A/D) converters provides a means of increasing the sampling rate beyond that possible with a single A/D converter. For time-interleaved photonic A/D converters, optical demultiplexers can be used to advantage. Both time-division and wavelength-division demultiplexers must yield low crosstalk between the parallel output channels in order to yield accurate A/D conversion. An analysis predicts the level and form of the resulting errors. The analytical results compare well with experiment
Keywords :
analogue-digital conversion; demultiplexing equipment; optical communication equipment; optical crosstalk; telecommunication channels; wavelength division multiplexing; A/D converters; accurate A/D conversion; crosstalk; demultiplexers; low crosstalk; optical demultiplexers; parallel array; parallel output channels; photonic analog-to-digital converters; sampling rate; time interleaving; time-interleaved photonic A/D converters; wavelength-division demultiplexers; Analog-digital conversion; Demultiplexing; Electrooptic modulators; Optical arrays; Optical crosstalk; Optical distortion; Optical modulation; Optical pulses; Optical switches; Sampling methods;
Journal_Title :
Lightwave Technology, Journal of
