title: Photonic integrated circuit as a picosecond pulse timing discriminator.
abstract: We report the first experimental demonstration of a compact on-chip optical pulse timing discriminator that is able to provide an output voltage proportional to the relative timing of two 60-ps input pulses on separate paths. The output voltage is intrinsically low-pass-filtered, so the discriminator forms an interface between high-speed optics and low-speed electronics. Potential applications include timing synchronization of multiple pulse trains as a precursor for optical time-division multiplexing, and compact rangefinders with millimeter dimensions.
authors.forename: Arthur James
authors.initials: AJ
authors.lastname: Lowery
authors.forename: Leimeng
authors.initials: L
authors.lastname: Zhuang