Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Distributed optical structures with improved diffraction efficiency and/or improved optical coupling










Image Number 6 for United States Patent #7194164.

An optical apparatus comprises a planar optical waveguide having at least one set of diffractive elements and confining in at least one transverse spatial dimension optical signals propagating therein. Each diffractive element set routes, between corresponding input and output optical ports, a corresponding diffracted portion of an input optical signal propagating in the waveguide that is successively incident on the diffractive elements and is diffracted by the diffractive element set. The optical signals propagate in the waveguide in corresponding diffractive-region optical transverse modes in regions where the diffractive elements are present, and in corresponding non-diffractive-region optical transverse modes in regions where the diffractive elements are absent. The diffractive element set is adapted so as to yield an operationally acceptable level of either or both of i) optical coupling between corresponding diffractive-region and non-diffractive-region optical transverse modes, and ii) diffraction efficiency of the diffractive element set.








 
 
  Recently Added Patents
Denial of service (DoS) attack prevention through random access channel resource reallocation
Testing SQL query writing skills
Manufacturing aircraft parts
Method, apparatus, computer program, and computer readable storage media for controlling the insertion of tab sheets into a print job
Voltage regulator structure that is operationally stable for both low and high capacitive loads
Composition comprising a mixture of dextro- and levo-amphetamines complexed with ion-exchange resin particles to form drug resin particles
Protein kinase C inhibitors and uses thereof
  Randomly Featured Patents
Liquid droplet ejecting head and liquid droplet ejecting apparatus
Resistance exercise apparatus for the muscles associated with the scapula
Radio apparatus
Clock for photographs
Deflection yoke for cathode ray tube
Automated chemical storage and chemical feed system
Retractable shock absorber
Compressor
Oscillating element, manufacturing method of oscillating element, optical scanning device, image forming device and image display device
Method and apparatus for seismic exploration