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. 13, 1998
Filed:
Nov. 08, 1995
Seok-jin Kang, Suwon, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A surface emitting semiconductor laser diode includes a ace emitting laser oscillating portion having a multi-quantum well area and being disposed between a pair of upper and lower reflector stacks for stable light-emitting, a photodiode portion for monitoring a laser beam emitted form the surface emitting laser oscillating portion and electrodes for a laser diode, a photodiode and ground for driving the surface emitting laser oscillating portion and photodiode portion. At least a part of the electrode for the photodiode is directly contacted on the surface of a semiconductor layer of the uppermost part of a deposited structure including the surface emitting laser oscillating portion. Thereby, a fabricating process of the device can be simplified, and the efficiency in monitoring can be maximized, since the photodiode is constituted being adjacent to window area through which a laser beam is directly emitted outward.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile