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:
Apr. 18, 2006
Filed:
Oct. 31, 2002
Applicants:
Young Duk Yoon, Tokyo, JP;
Sakiko Sugihara, Tokyo, JP;
Naoki Tsukiji, Tokyo, JP;
Inventors:
Assignee:
The Furukawa Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An n-InP cladding layer, a GRIN-SCH-MQW active layer, a p-InP cladding layer, p-InGaAsP contact layer and a p-side electrode are laminated sequentially on an n-InP substrate. Moreover, a film having high reflectivity is laminated on a reflection side end surface, and a transmission film is laminated on an emission side end surface. The transmission film has a first film and a second film. The second film is composed of an equivalent film composed of three layers.