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:
Oct. 31, 2006
Filed:
Aug. 01, 2003
Yushi Kaneda, Tucson, AZ (US);
Christine Spiegelberg, Tucson, AZ (US);
Jihong Geng, Tucson, AZ (US);
Yongdan HU, Tucson, AZ (US);
Yushi Kaneda, Tucson, AZ (US);
Christine Spiegelberg, Tucson, AZ (US);
Jihong Geng, Tucson, AZ (US);
Yongdan Hu, Tucson, AZ (US);
NP Photonics, Inc., Tucson, AZ (US);
Abstract
An all-fiber Q-switched laser includes a gain fiber spliced between narrowband and broadband fiber gratings that define a polarization-dependent resonant cavity. The narrowband grating is, for example, formed in a PM fiber to create a polarization-dependent reflection band. A modulator applies stress to the fiber chain to induce birefringence and switch the cavity Q-factor to alternately store energy in the gain fiber and then release the energy in a laser pulse.