title: Silicon photonic time-wavelength pulse interleaver for photonic analog-to-digital converters.
abstract: A 4-channel time-wavelength optical pulse interleaver is implemented on a silicon chip. The interleaver forms a train of pulses with periodically changing wavelengths by demultiplexing the input pulse train into several wavelength components, delaying these components with respect to each other, and multiplexing them back into a single path. The interleaver is integrated on a silicon chip, with two arrays of microring resonator filters performing multiplexing and demultiplexing, and long sections of silicon waveguides acting as delay lines. The 4-channel interleaver is designed for an input pulse train with 1 GHz repetition rate, and is measured to have 0.35% RMS pulse timing error, insertion loss between 1.6 dB and 5.8 dB in different channels, crosstalk below -24 dB, and 52 nm free spectral range achieved using the Vernier effect.
authors.forename: Hayk
authors.initials: H
authors.lastname: Gevorgyan
authors.forename: Kenaish
authors.initials: K
authors.lastname: Al Qubaisi
authors.forename: Marcus S
authors.initials: MS
authors.lastname: Dahlem
authors.forename: Anatol
authors.initials: A
authors.lastname: Khilo