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
Methods and apparatus for determining particle characteristics by measuring scattered light
Methods and systems for direct memory access (DMA) in-flight status
Pixel, pixel array, image sensor including the same and method for operating the image sensor
Boiler
Aryl (ethanoic) propanoic acid ascorbyl ester, preparation method thereof and medicament containing the same
Gapped oligomeric compounds having linked bicyclic sugar moieties at the termini
Opacity technology
  Randomly Featured Patents
LED utility light with removable magnet
Hand tools for pulling posts through computer paper printouts
Rolling tool box
Automatic soldering machines
Hospital gown
Process for preparing amidosilanes and amidosiloxanes
Hammer handle
Method for producing tablets with tablet presses protected from the environment and protective device for such tablet presses
Method, apparatus, and computer program for evaluating noise immunity of a semiconductor device
Fluoroalkene/hydrochlorofluorocarbon telomers and their synthesis