THE EFFECT OF SAMPLING-PULSE PEDESTALS ON TEMPORAL RESOLUTION IN ELECTROOPTIC SAMPLING

The effect of sampling-pulse pedestals, generated by pulse compression , on the temporal resolution in electrooptic (EO) sampling is studied both theoretically and experimentally. Analysis is made on how the ped estals degrade a measurement bandwidth and a temporal waveform. Based on the analysis, a practical guideline on the suppression of pedestals is also given. Gain-switched laser diode (LD) pulses adiabatically so liton-compressed using a dispersion decreasing fiber are used to confi rm the theoretical results, and are successfully applied to high-tempo ral-resolution (>100 GHz) EO sampling measurements.