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:
Oct. 18, 1988
Filed:
Apr. 21, 1986
Kiyoshi Ohnaka, Moriguchi, JP;
Jun Shibata, Sakai, JP;
Yoichi Sasai, Hirakata, JP;
Ichiro Nakao, Kadoma, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A semiconductor laser in which an InGaAsP active layer serving as light emitting layer and formed in the shape of a stripe on the surface of a flat InP first clad layer, and an InP second clad layer that is wider than the InGaAsP active layer and formed on the InGaAsP active layer are buried in an InP burying layer. The stripe direction is the <011> direction, an etched mirror is formed in the vicinity of the end of the active layer, and an opto-electronic integrated circuit is formed by integrating the electric device and photo detecting device on the same substrate. The substrate is a semi-insulating substrate, and the electric device and photo detecting device are formed on the InGaAsp or InGaAs layer formed on the InP burying layer by crystal growth.