The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2006
Filed:
Sep. 26, 2002
Gene Kent Weeks, Duluth, GA (US);
Stephen Mast, Norcross, GA (US);
Zhi Zhou, Lawrenceville, GA (US);
John F. Ryan, Iii, Duluth, GA (US);
Harry Douglas Garner, Jr., Lawrenceville, GA (US);
Siu-ping Hong, Fulton County, GA (US);
John Popwell, Gwinnett County, GA (US);
Alan H. Mccurdy, Fulton County, GA (US);
Gene Kent Weeks, Duluth, GA (US);
Stephen Mast, Norcross, GA (US);
Zhi Zhou, Lawrenceville, GA (US);
John F. Ryan, III, Duluth, GA (US);
Harry Douglas Garner, Jr., Lawrenceville, GA (US);
Siu-Ping Hong, Fulton County, GA (US);
John Popwell, Gwinnett County, GA (US);
Alan H. McCurdy, Fulton County, GA (US);
Fitel USA Corp., Norcross, GA (US);
Abstract
Methods and apparatuses negate a measured mechanical twist of an optical fiber by introducing a counteracting twist to bring the net mechanical twist closer to zero, which reduces the fiber's polarization mode dispersion (PMD). A spool of optical fiber having undesirable mechanical twist is mounted and fiber is drawn from the end of the spool to impart a specified counteracting mechanical twist. Additionally, the spool may be controllably rotated by a control system while optical fiber is drawn there from, allowing the system to generate a precise amount of counteracting mechanical twist in the fiber.