Radiation-free optical cavity
AssigneeMassachusetts Institute of Technology
InventorsMichael R. Watts, Steven G. Johnson, Hermann A. Haus, John D. Joannopoulos
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Abstract
The present invention provides a micro-resonator including a plurality of waveguides forming optic junctions therebetween, with adjacent waveguides having different core permittivities and different cladding permittivities. Adjacent waveguides are mode-matched through adjustments of the core permittivities and the cladding permittivities of the waveguides to reduce or eliminate junction radiation, thereby providing high performance.
Claims34
A device comprising:
- a plurality of waveguide sections, each of said waveguide sections adjacent another waveguide section and forming an optical resonant cavity therebetween, at least one waveguide section having at least one of a different core permittivity and a different cladding permittivity than an adjacent one of said plurality of waveguide sections, and wherein said adjacent waveguide sections are mode-matched through adjustments of at least one of said waveguide sections core permittivity and said waveguide sections cladding permittivity.
A high order filter comprising a plurality of resonators coupled together wherein at least one of such resonators comprises a plurality of waveguide sections with at least one waveguide section having at least one of a different core permittivity and a different cladding permittivity than an adjacent one of said plurality of waveguide sections, and wherein said adjacent waveguide sections are mode-matched through adjustments of at least one of said waveguide sections core permittivity and said waveguide sections cladding permittivity.
A device comprising:
- a plurality of waveguide sections, each of said waveguide sections adjacent another waveguide section and forming an optic junction therebetween, at least one waveguide section having at least one of a different core permittivity and a different cladding permittivity than an adjacent one of said plurality of waveguide sections, and wherein said adjacent waveguide sections possess a cylindrical geometry, and wherein said adjacent, waveguide sections are mode-matched through adjustments of at least one of said waveguide sections core permittivity and said waveguide sections cladding permittivity.
A device comprising:
- a plurality of waveguide sections, each of said waveguide sections having a shape chosen from the group comprising cylindrical and annular, each of said waveguide section adjacent another waveguide section and forming a radially symmetric optic junction therebetween, at least one waveguide section having at least one of a different core permittivity and a different cladding permittivity than an adjacent one of said plurality of waveguide sections, and wherein said adjacent waveguide sections are mode-matched through adjustments of at least one of said waveguide sections core permittivity and said waveguide sections cladding permittivity.
Dependencies are inferred from the claim text.