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. 08, 1986
Filed:
Apr. 14, 1983
Saburo Takamiya, Sanda, JP;
Shigeki Horiuchi, Amagasaki, JP;
Kaname Otaki, Itami, JP;
Yoshihiro Kokubo, Itami, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A surface-emitting injection type laser device has a semiconductor wafer including a first and a second main face opposite to each other and an active layer located on the side of the first main face. A single mode optical fiber chip has a first and second end surface perpendicular to its optical axis and is disposed on the semiconductor wafer with the first end surface contacting the second main face through a reflection preventing film. A dielectric film is disposed on the second end surface of the optical fiber chip to increase the reflection power at the second end surface and forming a resonator with the first main face of the semiconductor wafer.