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
Sign language keyboard and sign language searching apparatus using the same
Fused thiazole derivatives as kinase inhibitors
Method for detecting security error in mobile telecommunications system and device of mobile telecommunications
Controller interface providing improved data reliability
Method and system for phase-sensitive magnetic resonance imaging
Dynamic reconstruction of a calibration state of an absorption spectrometer
Basket for a dishwasher
  Randomly Featured Patents
Jacket for a coin changer
Graphical system for automated segmentation and recognition for image recognition systems
Process for producing high molecular weight diorganopolysiloxanes for use in heat vulcanizable silicone rubber compositions
Expandable portable shelter
Media storage organizer and method for using same
Heme choline esters and uses thereof
Multilayer cathode current collector/container for a battery
Damped high strain region beam for a disk drive head suspension
Vehicle light and road illumination device
Vehicular fuel supply equipment