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
Rechargeable battery including a channel member
Registry key federation systems and methods
Recovering a database to any point-in-time in the past with guaranteed data consistency
System and method of improving audio signals for the hearing impaired
Method of treating lung cancer
Azole derivatives, methods for producing the same, intermediate thereof, agro-horticultural agents
Online data conversion technique using a sliding window
  Randomly Featured Patents
Device for implantation of intraocular lens
Simultaneous radioassay of folate and vitamin B.sub.12
Soft x-ray submicron lithography using multiply charged ions
Beam Redirecting
Commercial vehicle, rail or bus vehicle entry door
Toaster
Continuous conduction mode power factor correction circuit with reduced sensing requirements
Vibration-testing system
Temperature stabilized voltage reference
Down feather sheet