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:
Jun. 07, 2011
Filed:
Dec. 16, 2008
David Simons, Santa Rosa, CA (US);
Boris Kharlamov, Santa Rosa, CA (US);
James Wong, Santa Rosa, CA (US);
Vincent Issier, Windsor, CA (US);
Andy Miller, Windsor, CA (US);
James Nunley, La Forestville, CA (US);
David Simons, Santa Rosa, CA (US);
Boris Kharlamov, Santa Rosa, CA (US);
James Wong, Santa Rosa, CA (US);
Vincent Issier, Windsor, CA (US);
Andy Miller, Windsor, CA (US);
James Nunley, La Forestville, CA (US);
JDS Uniphase Corporation, Milpitas, CA (US);
Abstract
A method for monitoring laser light launched into a core of a single mode fiber includes launching a portion of light directly into the cladding about the core. The cladding launched light is a known fraction of the core launched light and can be monitored by placing a detector about the cladding. Detected light including light that was launched into the cladding and has leaked through the cladding is used as a known fraction of light in the core and can be used to control the laser light source. This can be done with a straight section of single mode optical fiber and does not require bending the fiber. Advantageously, most of the core launched light remains in the core as guided light.