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:
Jan. 08, 2008
Filed:
Nov. 30, 2004
Tae Sung Jang, Suwon, KR;
Hee Seok Choi, Seoul, KR;
Sang Deog Cho, Suwon, KR;
Dong Min Jeon, Suwon, KR;
Tae Sung Jang, Suwon, KR;
Hee Seok Choi, Seoul, KR;
Sang Deog Cho, Suwon, KR;
Dong Min Jeon, Suwon, KR;
Samsung Electro-Mechanics Co., Ltd., Kyungki-Do, KR;
Abstract
The present invention relates to a multi-wavelength laser diode, in which an oscillating structure includes a semiconductor substrate, and a lower cladding layer, an active layer and a ridge formed in their order on the semiconductor substrate. A first metal layer is formed on a first face of the oscillating structure including one end of the ridge, and made of a metal having a high reflectivity in a first wavelength range of at least a predetermined wavelength. A second metal layer is formed on the first metal layer, the second metal layer being made of a metal having a high reflectivity in a second wavelength range under the predetermined wavelength. The multi-wavelength laser diode can improve-the reflective layer structure to achieve a high reflectivity in the entire visible light range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile