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. 28, 1986
Filed:
Jan. 02, 1985
Franz Kappeler, Puchheim, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A semiconductor diode laser for tunable single-frequency laser radiation has a plurality of laser-active strips associated with a semiconductor body having first and second reflective end surfaces. The first end surface has laser radiation emitted and coupled out therefrom. One of the strips is an emitting laser-active strip which emits the laser radiation and the further laser-active strips are provided at both sides of the emitting strip. The further strips are shorter than the emitting strip and are provided such that respective resonators corresponding to each strip are provided with mirrors or reflectors at both ends thereof. A first end of the strips terminates in front of the first end face of the semiconductor body.