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US 6,584,244 B2Granted
Switched filter for optical applications
AssigneeDonald J. Lenkszus
InventorHenry Hung
Life of this patent
Estimating the term…
Abstract
A switched optical wavelength selective reflector includes a 1×n bi-directional optical switch coupled to a plurality of wavelength selective reflective filters.
Claims25
Optical apparatus, comprising:
- a bi-directional optical switch having a first port and a plurality, N, of second ports, said optical switch being responsive to control signals for establishing an optical coupling between said first port and a selected one of said plurality of second ports;
- and
- a plurality of wavelength selective reflectors, said wavelength selective reflectors numbering N, each of said wavelength selective reflectors being coupled to a corresponding one of said optical switch second ports, each of said wavelength selective reflectors being selected to reflect optical signals at a predetermined one optical wavelength selected from a plurality of predetermined optical wavelengths,
- whereby optical signals at said predetermined one optical wavelength received at said first port are reflected back to said first port by a selected one of said wavelength selective reflectors.
1 more element
Optical apparatus, comprising:
- a substrate of electro-optic material;
- a bi-directional optical switch formed on said substrate, said bi-directional optical switch having a first port and a plurality, N, of second ports, said optical switch being responsive to control signals for establishing an optical coupling between said first port and a selected one of said plurality of second ports;
- and
- a plurality of wavelength selective reflectors formed on said substrate, said wavelength selective reflectors numbering N, each of said wavelength selective reflectors being coupled to a corresponding one of said optical switch second ports, each of said wavelength selective reflectors being selected to reflect optical signals at a predetermined one optical wavelength selected from a plurality of predetermined optical wavelengths,
- whereby optical signals at said predetermined one optical wavelength received at said first port are reflected back to said first port by a selected one of said wavelength selective reflectors.
2 more elements
Dependencies are inferred from the claim text.