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
Method and composition for hyperthermally treating cells
Organic light emitting diode display device and method of fabricating the same
Decoding and presentation time stamps for MPEG-4 advanced video coding
Meter socket cabinet
Computer network running a distributed application
Pear tree named `PremP109`
Methods of producing the membranes and the uses of membranes as battery separator films
  Randomly Featured Patents
Bulk-storage bin for peanuts
Disc player
Production of UHMWPE sheet materials
Folding umbrella frame guide structure
Portable telephone
Closure with elastic hinge
Device for improving pitching performance
Vehicle seat assembly having a mounting member to mount an electric component
Key mechanism and electronic device using the same
Fracturing fluid breaker system which is activated by fracture closure