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. 03, 2011
Filed:
Dec. 22, 2004
Chang-hee Lee, Daejeon, KR;
Jin-serk Baik, Gyeonggi-do, KR;
Ki-man Choi, Daegu, KR;
Hyun-sik Min, Busan, KR;
Keun-youl Park, Busan, KR;
Chang-Hee Lee, Daejeon, KR;
Jin-serk Baik, Gyeonggi-do, KR;
Ki-Man Choi, Daegu, KR;
Hyun-Sik Min, Busan, KR;
Keun-Youl Park, Busan, KR;
Korea Advanced Institute of Science and Technology, Taejon, KR;
Abstract
Disclosed is a broadband light source (BLS) necessary to implement wavelength-locked Fabry-Perot (FP) laser diodes (LDs) applicable to an optical subscriber network The BLS is based on a method using mutual injection of low-cost FP LDs and a method using FP LDs undergoing chirping. A power level of a light emitting diodes (LED), an erbium-doped fiber amplifier (EDFA), or a super luminescent diode (SLD) used as the conventional BLS is low and its cost is high, such that the conventional BLS is inefficient. However, the present invention can easily implement a low-cost BLS using proposed FP LDs.