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:
Aug. 10, 2010
Filed:
Jan. 10, 2009
Chieh HU, Chiayi, TW;
Shih-ting Lin, Tainan, TW;
Hsin-chia Su, Yunlin County, TW;
Yao-wun Jhang, Chiayi, TW;
Chieh Hu, Chiayi, TW;
Shih-Ting Lin, Tainan, TW;
Hsin-Chia Su, Yunlin County, TW;
Yao-Wun Jhang, Chiayi, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A fiber laser device includes a laser pump for irradiating a laser beam, an optical component, an optical fiber and an optical sensor. The optical component has a first and a second output end, wherein a portion of the laser beam is output from the first output end and another portion of the laser beam is output from the second output end. The optical fiber including a core and a cladding layer is optically coupled between the laser pump and the optical component. A inclined angle θ of the first output end satisfies the following relations that θ/2≦θ≦θ, and θ=sin(NA·n/n), where NA is numerical aperture of optical fiber, nis refractive index of the core, and nis refractive index of the cladding layer. The optical sensor is disposed at a light-transmission path of the laser beam reflected by the first output end.