Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Tunable chromatic dispersion compensator utilizing a virtually imaged phased array and folded light paths










Image Number 19 for United States Patent #6392807.

The present invention provides an improved tunable chromatic dispersion compensator. The compensator includes: a virtually imaged phased array (VIPA); at least one reflector optically coupled to the VIPA; a mirror optically coupled to the at least one reflector; and a movable reflector holder coupled to the at least one reflector, where the movable reflector holder moves the at least one reflector such that a length of a beam path between the VIPA and the at least one reflector and the mirror is variable. The present invention uses the VIPA to produce a controlled variable degree of chromatic dispersion within a plurality of optical channels so as to compensate for unwanted chromatic dispersion in an optical communications system. Positional adjustment of the movable reflector holder permits variable control of the beam path length between the VIPA and the focusing lens. This variable change in beam path length permits variable control of the magnitude and sign of chromatic dispersion provide by the compensator.








 
 
  Recently Added Patents
Image forming apparatus and job request control method instructed by authenticated users
High performance data transport system and method
Fire detector
Method and system for migrating object update messages through synchronous data propagation
Electronic circuit having shared leakage current reduction circuits
Radio communication device and sequence length adjusting method
Packaging
  Randomly Featured Patents
Method and apparatus for analysis of particles in a liquid sample
Hydrophilic IR transparent membrane, spectroscopic sample holder comprising same and method of using same
Method for treating surface of ink jet recording medium having recorded image
Inter-computer data transfer method and inter-computer network system
Electrically-conductive nanocomposite material
Di-substituted phthalazines
Lens unit
Developer cartridge for image-forming device
Powder Dispenser
Capacitors with high energy storage density and low ESR