Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
All-optical holographic code division multiple access switch










Image Number 13 for United States Patent #6844947.

A technique for processing optical input signals to produce optical output signals using only a single hologram for a plurality of circularly shifted code words used to encode the input signals. A spatial light modulator coupled to the each of the optical input signals encodes a corresponding one of the input optical signals, and the optical signals are linear combined for further processing. A matched filter composed of the single hologram receives the linear combination, and a two-dimensional microlens arrangement coupled to the matched filter emits each of the optical output signals from a corresponding microlens in the arrangement. Switching is engendered by controlling each spatial light modulator to thereby direct each input signal to the desired one of the microlens in the arrangement.








 
 
  Recently Added Patents
Feedback method and processing system for policy installation failures
Radiation detector array
Closed cell culture system
Electronic device package and fabrication method thereof
Polypeptides having beta-glucosidase activity and beta-xylosidase activity and polynucleotides encoding same
Battery loading and unloading mechanism
Methods of modulating interleukin-22 and immune response by notch regulators
  Randomly Featured Patents
Apparatus for reducing microbe content in foodstuffs by pH and physical manipulation
Programmable pacer and method of external programming
Pinhole free asphalt coating for a fibrous mat and process for making the same through use of a thixotropic asphalt emulsion
Method for detecting fully-charged state of rechargeable battery
Support mechanism for transforming bicycle into stationary bike
Method for fiber reinforced composite butt joining
Solid waste disposing system
Charging electronic cigarette case
Information recording medium and information reproducing apparatus
Coffee maker assembly