title: Integrated frequency comb source based Hilbert transformer for wideband microwave photonic phase analysis.
abstract: We demonstrate a photonic RF Hilbert transformer for broadband microwave in-phase and quadrature-phase generation based on an integrated frequency optical comb, generated using a nonlinear microring resonator based on a CMOS compatible, high-index contrast, doped-silica glass platform. The high quality and large frequency spacing of the comb enables filters with up to 20 taps, allowing us to demonstrate a quadrature filter with more than a 5-octave (3 dB) bandwidth and an almost uniform phase response.
authors.forename: Thach G
authors.initials: TG
authors.lastname: Nguyen
authors.forename: Mehrdad
authors.initials: M
authors.lastname: Shoeiby
authors.forename: Sai T
authors.initials: ST
authors.lastname: Chu
authors.forename: Brent E
authors.initials: BE
authors.lastname: Little
authors.forename: Roberto
authors.initials: R
authors.lastname: Morandotti
authors.forename: Arnan
authors.initials: A
authors.lastname: Mitchell
authors.forename: David J
authors.initials: DJ
authors.lastname: Moss