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:
Apr. 07, 2009
Filed:
Apr. 22, 2004
Seung-hyun Jang, Jeju-Do, KR;
Eui-suk Jung, Daejon, KR;
Byoung-whi Kim, Gyeonggi-Do, KR;
Hyeong-ho Lee, Daejon, KR;
Seung-Hyun Jang, Jeju-Do, KR;
Eui-Suk Jung, Daejon, KR;
Byoung-Whi Kim, Gyeonggi-Do, KR;
Hyeong-Ho Lee, Daejon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
An optical communication apparatus using a sub-carrier multiple access includes a laser diode for generating an optical signal with a central frequency, a temperature controller installed at a subscriber side for controlling a temperature of laser diode placed at a transmitting terminal, an optical coupler for coupling the optical signal outputted from the laser diode to an optical fiber and an optical receiver for receiving the optical signal outputted from the optical coupler. The central frequency of the optical signal outputted from the laser diode is changed in response to the change of the temperature controlled by the temperature controller.