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
Scheduling compute kernel workgroups to heterogeneous processors based on historical processor execution times and utilizations
Ice scraper
Thin film transistor array wherein both an auxiliary electrode and a storage electrode are shaped as an octagonal ring
Wireless communication system, wireless communication apparatus, and wireless communication method
Memory access management block bind system and method
Method and apparatus for training a probe model based machine vision system
Voice coder with multiple-microphone system and strategic microphone placement to deter obstruction for a digital communication device
  Randomly Featured Patents
Manufacture of lapping board
Floating body memory cell having gates favoring different conductivity type regions
Documentation browsing method, documentation browsing apparatus, documentation browsing robot, and documentation browsing program
Vapor deposited titanium and titanium-nitride layers for dental devices
Ferroelectric memory and electronic apparatus
DNA encoding growth/differentiation factor
Virtually distortion-free imaging system for large field, high resolution lithography using electrons, ions or other particle beams
Flexible face sign with raised display surface
Package of MEMS device and method for fabricating the same
Occludator, face bow, occlusion-confirming system and temporomandibular joint-reproducing system