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:
Jan. 04, 2005
Filed:
Aug. 30, 2001
Hyo-sang Kim, Santa Clara, CA (US);
David Vigdor Salamon, San Jose, CA (US);
Seok-hyun Yun, Santa Clara, CA (US);
Hyo-Sang Kim, Santa Clara, CA (US);
David Vigdor Salamon, San Jose, CA (US);
Seok-Hyun Yun, Santa Clara, CA (US);
Novera Optics, Inc., Palo Alto, CA (US);
Abstract
This invention relates to a method of making optical fiber having low polarization dependence and an acousto-optical filter with low PDL. A section of the fiber is heated and then allowed to cool. At least the heating is controlled to reduce stresses in a cladding layer surrounding a core of the interaction length after the interaction length is allowed to cool to reduce polarization dependence of the cladding layer. Preferably, at least time and temperature of heating is controlled.