title: Design and characterization of microring reflectors with a waveguide crossing.
abstract: We present a novel design of a wavelength-selective reflector using a microring resonator integrated with a low-loss, low-crosstalk waveguide crossing. Functioning as a reflective notch filter, it can be used for optical communications and for sensor applications. The device is simulated using the transfer-matrix method combined with a two-dimensional finite-difference mode solver and is fabricated by a CMOS-compatible silicon-on-insulator technology. The measurement shows an extinction ratio greater than 25 dB and a resonance-wavelength temperature dependence of 0.09 nm/K.
authors.affiliation: Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, British Columbia, Canada. weis@ece.ubc.ca
authors.forename: Wei
authors.initials: W
authors.lastname: Shi
authors.forename: Raha
authors.initials: R
authors.lastname: Vafaei
authors.forename: Miguel Angel
authors.initials: MA
authors.lastname: Guillén Torres
authors.forename: Nicolas A F
authors.initials: NA
authors.lastname: Jaeger
authors.forename: Lukas
authors.initials: L
authors.lastname: Chrostowski