title: Ultra-compact, flat-top demultiplexer using anti-reflection contra-directional couplers for CWDM networks on silicon.
abstract: Wavelength-division-multiplexing (WDM) networks with wide channel grids and bandwidths are promising for low-cost, low-power optical interconnects. Wide-bandwidth, single-band (i.e., no free-spectral range) add-drop filters have been developed on silicon using anti-reflection contra-directional couplers with out-of-phase Bragg gratings. Using such filter components, we demonstrate a 4-channel, coarse-WDM demultiplexer with flat passbands of up to 13 nm and an ultra-compact size of 1.2 × 10(-3) mm(2).
authors.affiliation: Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, Canada. weis@ece.ubc.ca
authors.forename: Wei
authors.initials: W
authors.lastname: Shi
authors.forename: Han
authors.initials: H
authors.lastname: Yun
authors.forename: Charlie
authors.initials: C
authors.lastname: Lin
authors.forename: Mark
authors.initials: M
authors.lastname: Greenberg
authors.forename: Xu
authors.initials: X
authors.lastname: Wang
authors.forename: Yun
authors.initials: Y
authors.lastname: Wang
authors.forename: Sahba Talebi
authors.initials: ST
authors.lastname: Fard
authors.forename: Jonas
authors.initials: J
authors.lastname: Flueckiger
authors.forename: Nicolas A F
authors.initials: NA
authors.lastname: Jaeger
authors.forename: Lukas
authors.initials: L
authors.lastname: Chrostowski
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008904:Miniaturization; D012031:Refractometry / Q000295:instrumentation*; D012825:Silicon / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*
chemical_list: D012825:Silicon