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:
Jan. 10, 1989
Filed:
Jul. 02, 1986
Applicant:
Inventors:
Yoshihiro Kokubo, Itami, JP;
Wataru Susaki, Itami, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 43 ; 372 49 ; 357 19 ; 346160 ; 250205 ;
Abstract
A semiconductor laser apparatus in accordance with the present invention comprise: a semiconductor laser chip including a resonator with a couple of opposite end faces of which one is provided with an antireflective coating and the other with a highly reflective coating; a stem having a main surface to which the chip is attached with the end faces being vertical to the main surface; and a photoelectric conversion device, a major surface of which absorbs a part of a laser beam emitted from said one end face thereby to monitor intensity of the beam and reflects the remaining part of the beam for practical use.