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
Media used in digital high speed inkjet web press printing
(-)-epigallocatechin gallate derivatives for inhibiting proteasome
Method of requesting CQI reports
Late loading rich media
Battery grid
Preservation of liquid foods
SMS transport resource control
  Randomly Featured Patents
Anti-lock braking system
Solder wave measurement device
Fuel injection control system for a fuel injection pump
Stable ON-resistance switch circuit
Process for the pretreatment of activated carbon with ferric chloride
Centrifuge sieve and method of producing the same
Immunogenic constructs comprising b-cell and t-cell epitopes on common carrier
Magnetic recording medium
Methods for ultrasonic inspection of spot and seam resistance welds in metallic sheets and a spot weld examination probe system (SWEPS)
Tank-type heating apparatus for fluid or doughy food products