Patents by Inventor Gonzalo Wills

Gonzalo Wills has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6711311
    Abstract: This invention relates to elements such as birefringent crystals, which are used to separate a non-collimated input beam into two orthogonally polarized sub-beams or to combine two orthogonally polarized beams into a single beam. The optical device lessens or obviates the optical path length difference encountered in prior art devices and provides a polarization beam splitter/combiner that has substantially same optical path lengths for two split or combined beams propagating therethrough. Alternatively, the device is designed to provide a selected path length difference to compensate for polarization mode dispersion in other optical devices.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: March 23, 2004
    Assignee: JDS Uniphase Inc.
    Inventors: Vincent Delisle, Gonzalo Wills, Pierre D. Wall, Alan J. P. Hnatiw, Yihao Cheng, Dean Sheldon Spicer, Sheldon McLaughlin
  • Publication number: 20030228082
    Abstract: A tunable PM fiber combiner is configured to be accurately alignable with and operative to combine into a single composite beam a pair of non-collimated, orthogonally polarized light beams transported over polarization maintaining (PM) optical fibers, whose mutual spatial separation may vary. The combiner includes birefringent elements, that are linearly or rotationally displaced to realize the composite beam. The resulting composite light beam may then be readily coupled (e.g. via a single mode fiber) to a downstream beam processing device, such as a Raman amplifier.
    Type: Application
    Filed: June 11, 2002
    Publication date: December 11, 2003
    Applicant: JDS Uniphase Corporation
    Inventors: Kok-Wai Chang, Qingdong Guo, Long Yang, Gonzalo Wills
  • Publication number: 20020191290
    Abstract: A multimode laser beam depolarization and combining architecture integrates a combiner for polarized multimode light beams with a multimode beam depolarizer, that produces a composite depolarized output beam optimized for application to a Raman optical amplifier. A high-order depolarizing 45° waveplate is used to effectively depolarize multimode laser beams produced by a Fabry-Perot (FP) laser. The high-order 45° waveplate has a length that achieves multi mode dispersion-dependent depolarization of the beam over its travel path through the crystal, and may comprise a birefringent material such as YVO4 having a large difference between its extraordinary and ordinary indices of refraction.
    Type: Application
    Filed: May 21, 2002
    Publication date: December 19, 2002
    Applicant: JDS Uniphase Corporation
    Inventors: Kok-Wai Chang, Jyehong Chen, Kuochou Tai, Gonzalo Wills
  • Patent number: 6442310
    Abstract: An optical coupling device and method is disclosed, wherein two lenses having a non-unitary configuration are positioned between a plurality of input ports and a plurality of output ports having different center-to-center distances. More specifically, the spacing d1 between input ports is fixed and is different in magnitude from the fixed spacing d2 between output ports. Preferably, the two lenses have a common axis and are separated by a distance d3, which is selected in dependence upon the known and fixed spacings, d1 and d2. Advantageously, the disclosed coupling device provides a simple and economical apparatus and method for coupling light between a first plurality of ports having a fixed distance therebetween to a second plurality of ports having a different fixed distance therebetween.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: August 27, 2002
    Assignee: JDS Uniphase Inc.
    Inventor: Gonzalo Wills
  • Publication number: 20020012167
    Abstract: The present invention relates to an isolated polarization beam splitter or combiner, for joining light from different inputs into one common port, and for dividing a beam of light into orthogonal polarizations. In both modes of operation, the splitter/combiner provides isolation preventing transmission of light in a reverse direction. As a splitter, a beam of light is separated through a birefringent material into sub-beams of orthogonal polarization components, and each sub-beam is passed through a non-reciprocal polarization rotator to rotate the polarization so that a reflected beam, or other counter-transmitted light cannot return on the same path through the birefringent material to the source. As a combiner, two separate beams of light are launched with known orthogonal polarizations into a first birefringent material, passed through a non-reciprocal polarization rotator and then combined as orthogonal polarizations into a single output port.
    Type: Application
    Filed: July 11, 2001
    Publication date: January 31, 2002
    Applicant: JDS Uniphase, Inc. & JDS Uniphase Corporation
    Inventors: Gonzalo Wills, Pierre D. Wall, Kok-Wai Chang, Fahong Jin, Xinglong Wang
  • Publication number: 20020005987
    Abstract: This invention relates to elements such as birefringent crystals, which are used to separate an input beam into two orthogonally polarized sub-beams or to combine two orthogonally polarized beams into a single beam. The optical device lessens or obviates the optical path length difference encountered in prior art devices and provides a polarization beam splitter/combiner that has substantially same optical path lengths for two split or combined beams propagating therethrough. Furthermore, the device can be operated such that it provides isolation in a reverse direction of operation.
    Type: Application
    Filed: December 8, 2000
    Publication date: January 17, 2002
    Inventors: Gonzalo Wills, Pierre D. Wall
  • Publication number: 20010036330
    Abstract: This invention relates to elements such as birefringent crystals, which are used to separate a non-collimated input beam into two orthogonally polarized sub-beams or to combine two orthogonally polarized beams into a single beam. The optical device lessens or obviates the optical path length difference encountered in prior art devices and provides a polarization beam splitter/combiner that has substantially same optical path lengths for two split or combined beams propagating therethrough. Alternatively, the device is designed to provide a selected path length difference to compensate for polarization mode dispersion in other optical devices.
    Type: Application
    Filed: April 18, 2001
    Publication date: November 1, 2001
    Inventors: Vincent Delisle, Gonzalo Wills, Pierre D. Wall, Alan J.P. Hnatiw, Yihao Cheng, Dean Sheldon Spicer, Sheldon McLaughlin
  • Patent number: 6288826
    Abstract: This invention discloses to a multi-stage optical isolator having a large centrally disposed birefringent crystal and two smaller crystals sized to separate in a polarization dependent manner into sub-beams and combine light that is separated into sub-beams at an output end thereof. By providing a single large crystal centrally disposed, less alignment is required due to fewer alignment critical components being required. Furthermore, the isolator in accordance with this invention is well suited to high-power applications.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: September 11, 2001
    Assignee: JDS Uniphase Inc.
    Inventor: Gonzalo Wills