title: Add-drop filters based on mode-conversion cavities.
abstract: A new type of a resonator defined by two or more mode-converting gratings in a waveguide is proposed and analyzed. It is shown that the proposed structure can exhibit narrow resonances similar to Fabry-Perot cavities but has an advantage of being a four-port device and thus is capable of serving as an add-drop filter.
authors: Johns Hopkins University, Baltimore, Maryland 21218, USA. jakek@jhu.edu
authors: Jacob B
authors: JB
authors: Khurgin
authors: Marcel W
authors: MW
authors: Pruessner
authors: Todd H
authors: TH
authors: Stievater
authors: William S
authors: WS
authors: Rabinovich