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
Multi-radio coexistence
Use of a high-oleic and high-tocol diet in combination with a non-tocol antioxidant for improving animal meat quality
Moving structure and micro-mirror device using the same
Tube lighting fixture
Power management method for reducing power of host when turning off main monitor and computer system applying the same
Coreference resolution in an ambiguity-sensitive natural language processing system
Transactional consistency scheme
  Randomly Featured Patents
Porous silica microspheres having organosilane modified surfaces
Two-wheeler in the form of a dandy horse
Rapid generation of stable mammalian cell lines producing high levels of recombinant proteins
Drawing pixmap to vector conversion
Divinyl epoxy ethers
Dynamic real time exercise video apparatus and method
Dishwasher rack
Process for making a one piece rotor liner
Methods for treating cholesterol-containing foodstuffs using live ciliates
Synthesizing computer input events