Resources Contact Us Home
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 of targeting hydrophobic drugs to vascular lesions
Digital-to-analog converter and performing method thereof
Intelligent and automated code deployment
Regenerative power storage system mounted on DC electric railway car
Leg mounted portable computer
Para-xylylene based microfilm elution devices
Portion of a display panel with an unhappy facial expression icon
  Randomly Featured Patents
Method for managing a continuous in-line metal strip processing installation, and installation for implementing this method
Electrical key locked switch
Tool kit for antenna
Electromagnetic scale with decreased temperature variation
Hydrogen purification system
Pseudorandom number generator
Snowmobile hood
Display holder for dental materials
Epoxide modified polysulfide polymers as adhesive additives for liquid polysulfide polymer based adhesive compositions