title: Wavelength selective mode division multiplexing on a silicon chip.
abstract: Multiplexing of optical modes in waveguides is demonstrated using coupled vertical gratings. The device utilizes sinusoidally corrugated waveguides of different widths with a period designed to multiplex information at 1.55 µm. The design, fabrication and characterization of devices is performed. Multiplexing of modes is demonstrated in optical structures which support 3 and 5 quasi-TE modes. The design utilizes counter-propagating modes in periodic structures, thus enabling the device to combine its mode division multiplexing capabilities with wavelength division multiplexing functionalities to further augment the multiplexing capacity of the device.
authors.forename: G F R
authors.initials: GF
authors.lastname: Chen
authors.forename: T
authors.initials: T
authors.lastname: Wang
authors.forename: K J A
authors.initials: KJ
authors.lastname: Ooi
authors.forename: A K L
authors.initials: AK
authors.lastname: Chee
authors.forename: L K
authors.initials: LK
authors.lastname: Ang
authors.forename: D T H
authors.initials: DT
authors.lastname: Tan