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:
Feb. 22, 2000
Filed:
Aug. 20, 1998
Gwan Chong Joo, Daejeon, KR;
Ki Sung Park, Daejeon, KR;
Sang Hwan Lee, Daejeon, KR;
Seung Goo Kang, Daejeon, KR;
Min Kyu Song, Daejeon, KR;
Hong Man Kim, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Korea Telecom, Seoul, KR;
Abstract
A bidirectional optical communication module using a single optical fiber is disclosed. The module includes an optical fiber having a cut-away surface polished to have an acute angle between the cut-away surface and an axis of the optical fiber, a semiconductor laser emitting a transmission light coupled with a light fiber core, and a bidirectional optical device having a light receiving portion absorbing a receiving light outputted from the light fiber core for thereby optically coupling a bidirectional optical device in which a light receiving device is integrated into a light transmitting semiconductor laser as a single chip and an optical fiber when fabricating an optical module for implementing a light signal transmission and receiving operation using one optical fiber.