title: Dual phase-shift Bragg grating silicon photonic modulator operating up to 60 Gb/s.
abstract: We demonstrate PAM-4 and OOK operation of a novel silicon photonic modulator. The modulator design is based on two phase-shifts in a Bragg Grating structure driven in a push pull configuration. Back-to-back PAM-4 modulation is demonstrated below the FEC threshold at up to 60 Gb/s. OOK modulation is also shown up to 55 Gb/s with MMSE equalization and up to 50 Gb/s without equalization. Eye diagrams and BER curves at different bit rates are provided for both PAM-4 and OOK modulations. To our knowledge, this structure is the fastest silicon photonic modulator based on Bragg gratings, reaching modulation speed comparable to the fastest Mach-Zehnder modulators and micro-ring modulators.
authors.forename: K
authors.initials: K
authors.lastname: Bédard
authors.forename: A D
authors.initials: AD
authors.lastname: Simard
authors.forename: B
authors.initials: B
authors.lastname: Filion
authors.forename: Y
authors.initials: Y
authors.lastname: Painchaud
authors.forename: L A
authors.initials: LA
authors.lastname: Rusch
authors.forename: S
authors.initials: S
authors.lastname: LaRochelle