Patents by Inventor Isaac R. Jessop

Isaac R. Jessop 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).

  • Method and apparatus for accurately fabricating a depolarizer
    Patent number: 5881185
    Abstract: Aligned birefringent fiber segments are reliably and efficiently rotated approximately 45.degree. relative to each other until the extinction ratio measurement at the output is approximately 0 dB, then birefringent fibers are fused. To determine the extinction ratio, a Wollaston analyzer is placed at the output of the birefringent fiber. Photodetectors placed on each output of the Wollaston analyzer, substantially simultaneously measure the output intensity of each propagation axis.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: March 9, 1999
    Assignee: Honeywell Inc.
    Inventors: John R. Feth, Joseph F. Straceski, Isaac R. Jessop