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. 10, 2003
Filed:
Aug. 06, 2001
John Ming-wei Chen, Rowland Height, CA (US);
Robert K. Shih, Arcadia, CA (US);
Finisar Corporation, Sunnyvale, CA (US);
Abstract
The present invention relates generally to laser/detector packages, and particularly to laser/detector packages with components that increase the accuracy and ease of laser diode positioning. In particular, the laser/detector package of the present invention includes an attachment plate having a reference surface; a header post that is perpendicular to the reference surface when attached to the reference surface; sub-mount that houses a laser diode and abuts the reference surface or a spacer, which abuts the reference surface. By abutting the reference surface or the spacer, the laser diode attached to the sub-mount is easily and precisely positioned a proper distance from the reference surface. Additionally, preferred embodiments of the invention include a marking on the sub-mount that is parallel to the reference surface and a marking that is perpendicular to the reference surface on the spacer or sub-mount. These markings further improve the ease and accuracy of positioning and repositioning the laser diode and/or sub-mount.