US Patent 7936994 Broadband light source using fabry perot laser diodes

Patent 7936994 was granted and assigned to Korea Advanced Institute of Science and Technology on May, 2011 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Korea Advanced Institute of Science and Technology

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7936994

Patent Inventor Names

Hyun-Sik Min0

Ki-Man Choi0

Keun-Youl Park0

Chang-Hee Lee0

Jin-serk Baik0

Date of Patent

May 3, 2011

Patent Application Number

11575604

Date Filed

December 22, 2004

Patent Primary Examiner

‌

Nathan M Curs

Patent 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.

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