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:
Feb. 23, 1999
Filed:
Sep. 19, 1996
Karl-Ulrich Stein, Unterhaching, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An optoelectronic transmission-reception device has a semiconductor laser and reception diode fashioned monolithically integrated in a semiconductor chip whose laser resonator is formed by two outer limiting surfaces of the semiconductor chip arranged opposite one another. The laser light emitted by the semiconductor laser is incident into a light waveguide coupled to one limiting surface of the semiconductor chip at the light waveguide side. The coupling of the light waveguide to the semiconductor laser and reception diode fashioned monolithically integrated in the semiconductor chip is fashioned such and the limiting surface of the semiconductor chip at the light waveguide side is of such a nature that, given an adequately low reflectivity of the laser emission emitted by the laser that is required for adequate assurance of the laser function, an optimally large part of the radiation received via the light waveguide is incident into the semiconductor laser and reception diode.