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:
Mar. 16, 2010
Filed:
Jan. 09, 2007
Byoung Whi Kim, Daejeon, KR;
Mahn Yong Park, Gwangju, KR;
Seung Hyun Cho, Daejeon, KR;
Woo Ram Lee, Daejeon, KR;
Jie Hyun Lee, Daejeon, KR;
Geon Jeong, Daejeon, KR;
Chul Young Kim, Gwangju, KR;
Byoung Whi Kim, Daejeon, KR;
Mahn Yong Park, Gwangju, KR;
Seung Hyun Cho, Daejeon, KR;
Woo Ram Lee, Daejeon, KR;
Jie Hyun Lee, Daejeon, KR;
Geon Jeong, Daejeon, KR;
Chul Young Kim, Gwangju, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A reflective semiconductor optical amplifier (RSOA) and an operating system based on a downstream optical signal reuse method with feed-forward current injection are provided. The RSOA has two active regions and includes a reflecting plane that reflects an input optical signal; and an optical amplifying semiconductor including a rear portion, which is positioned at a side of the reflecting plane and to which a signal having polarity opposite to that of the input optical signal is injected, and a front portion, which is positioned at a side opposite to the side of the rear portion facing the reflecting plane and which the input optical signal is passed though and a signal used to modulate a reflected input optical signal from the reflecting plane to an output optical signal is injected into.