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
Electronic device including circuitry comprising open failure-susceptible components, and open failure-actuated anti-fuse pathway
Sport tights
Wireless communications device having waveform banks with frequency offset and related methods
Method, apparatus and computer program product for context based tagging of data
Heterojunction solar cell
Substituted bipyridyl compound and organic electroluminescent device
Electronic circuit design copy protection
  Randomly Featured Patents
Terminal free connector and method
Optical equalizer
Mandelic acid derivatives and mandelonitriles, processes for producing them, and their use for combating microorganisms
Electro-optical plug and receptacle
Amino pyrazole compound
Valve apparatus with seal assembly
Generator set with removable panels and captive bolt system
Wearable action-assist device, and method and program for controlling wearable action-assist device
Hybrid corn variety 980003
Mobile communication apparatus