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:
May. 27, 2008
Filed:
Dec. 02, 2005
Moon Ho Park, Daejeon, KR;
Sahng Gi Park, Daejeon, KR;
Su Hwan OH, Daejeon, KR;
Yong Soon Baek, Daejeon, KR;
Kwang Ryong OH, Daejeon, KR;
Gyung Ock Kim, Seoul, KR;
Sung Bock Kim, Daejeon, KR;
Moon Ho Park, Daejeon, KR;
Sahng Gi Park, Daejeon, KR;
Su Hwan Oh, Daejeon, KR;
Yong Soon Baek, Daejeon, KR;
Kwang Ryong Oh, Daejeon, KR;
Gyung Ock Kim, Seoul, KR;
Sung Bock Kim, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided is a method of fabricating a semiconductor optical device for use in a subscriber or a wavelength division multiplexing (WDM) optical communication system, in which a laser diode (LD) and a semiconductor optical amplifier (SOA) are integrated in a single active layer. The laser diode (LD) and the semiconductor optical amplifier (SOA) are optically connected to each other, and electrically insulated from each other by ion injection, whereby light generated from the LD is amplified by the SOA to provide low oscillation start current and high intensity of output light when current is individually injected through each electrode.