title: Integrated-optic polarization-splitting directional coupler.
abstract: We present a novel integrated-optic polarization-splitting directional coupler consisting of two channel waveguides coated with thin layers of metal with different thicknesses. Using an effective-index method and a recently developed matrix method, we show that such a structure can have extinction ratios of better than -20 dB and a loss of less than 1.0 dB.
authors.forename: K
authors.initials: K
authors.lastname: Thyagarajan
authors.forename: S
authors.initials: S
authors.lastname: Diggavi
authors.forename: A K
authors.initials: AK
authors.lastname: Ghatak