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:
Dec. 23, 2003
Filed:
Sep. 25, 2002
Yushi Kaneda, Tucson, AZ (US);
NP Photonics, Inc., Tucson, AZ (US);
Abstract
A multimode diode package and pump-coupler package are provided with a beam rotator that facilitates efficient packaging of a multimode diode laser with a side-coupled optical fiber. The beam rotator comprises a pair of reflective surfaces that perform/a pair of “off-plane bounces” to rotate the beam's fast axis. In an XYZ coordinate system, if the diode lies in the XZ-plane and emits the beam along the Z-axis with its fast-axis along the Y-axis, the first reflective surface folds the beam along the Y-axis and its fast-axis along the Z-axis. The second reflective surface folds the beam along the X-axis and leaves the fast-axis along the Z-axis. The fiber is mounted in the XZ-plane along the Z-axis parallel to the fast-axis.