title: Programmable eye-opener lattice filter for multi-channel dispersion compensation using an integrated compact low-loss silicon nitride platform.
abstract: A tunable eye-opening lattice filter for dispersion compensation is demonstrated on an ultra low-loss waveguide platform based on a compact high-aspect ratio Si3N4core. A programmable 10th order lattice filter is demonstrated by cascading a total of 21 Mach-Zehnder interferometers with programmable delay lines of lengths designed at the baseband data rate. The filter has a footprint of 2.23 cm2with continuously tunable dispersion from -500 ps/nm to 500 ps/nm. The filter shows a periodic transfer function with a measured FSR of 100 GHz capable of compensating multiple WDM channels with a single device.
authors.forename: Renan
authors.initials: R
authors.lastname: Moreira
authors.forename: Sarat
authors.initials: S
authors.lastname: Gundavarapu
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Blumenthal