Title :
GaAs microcavity channel-dropping filter based on a race-track resonator
Author :
Chin, M.K. ; Youtsey, C. ; Zhao, W. ; Pierson, T. ; Ren, Z. ; Wu, S.L. ; Wang, L. ; Zhao, Y.G. ; Ho, S.T.
Author_Institution :
Nanovation Technol. Inc., Evanston, IL, USA
Abstract :
We have demonstrated add-drop filters using racetrack-shaped resonators coupled to straight waveguides across gaps which are larger compared with the conventional microcavity ring resonators. The finesse and the maximum transmission are characterized and are shown to be determined uniquely by the round-trip loss and the coupling factor of the resonator.
Keywords :
Fabry-Perot resonators; III-V semiconductors; cavity resonator filters; gallium arsenide; integrated optics; optical communication equipment; optical losses; optical waveguide filters; wavelength division multiplexing; Fabry-Perot interferometer; GaAs microcavity channel-dropping filter; GaAs-Al/sub 0.6/Ga/sub 0.4/As; WDM; add-drop filters; finesse; maximum transmission; race-track resonator; racetrack-shaped resonators; resonator coupling factor; round-trip loss; straight waveguides; Couplings; Gallium arsenide; Microcavities; Optical filters; Optical resonators; Optical ring resonators; Optical waveguides; Resonance; Resonator filters; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
