Patents by Inventor Tracy L. Hawk

Tracy L. Hawk 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: 7147388
    Abstract: The polarization state of a light wave is changed by a fiber polanrzation retardation device constructed by a method including employment of a pair of clamping fixtures, and a series of steps including clamping, cleaving, splicing, releasing, clamping, and cleaving, so as to achieve precise optical fiber lengths to achieve a desired polarization retarding device.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: December 12, 2006
    Assignee: NxtPhase Corporation
    Inventors: Randy P. Goettsche, Karl A. Fetting, Glen A. Sanders, John H. Shannon, Tracy L. Hawk
  • Publication number: 20030138224
    Abstract: The polarization state of a light wave is changed by a fiber polarization retardation device constructed by a method including employment of a pair of clamping fixtures, and a series of steps including clamping, cleaving, splicing, releasing, clamping, and cleaving, so as to achieve precise optical fiber lengths to achieve a desired polarization retarding device.
    Type: Application
    Filed: December 16, 2002
    Publication date: July 24, 2003
    Inventors: Randy P. Goettsche, Karl A. Fetting, Glen A. Sanders, John H. Shannon, Tracy L. Hawk
  • Patent number: 6535654
    Abstract: In many optics applications, it is desirable to retard the polarization of a light wave, i.e., to change the polarization state of a light wave. In a method for retarding polarization of a light wave, a first linear polarization-maintaining fiber having a first beat length is spliced to a second polarization-maintaining fiber having a high birefringence and a second beat length. The second fiber is then cleaved to a length which is a fraction of the second beat length. The first fiber and the second fiber may be secured in a removable or permanent capillary. A light wave is transmitted into the first fiber and the polarization state of the light wave is determined. To adjust the polarization state, the second fiber may be lapped against an abrasive substance. The second fiber may be repeatedly lapped until a desired polarization state is achieved.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: March 18, 2003
    Assignee: NxtPhase Technologies, SRL
    Inventors: Randy P. Goettsche, Karl A. Fetting, Glen A. Sanders, John H. Shannon, Tracy L. Hawk