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. 08, 2005
Filed:
Dec. 27, 2002
Yong Gyu Choi, Daejon-Shi, KR;
Bong Je Park, Busan-Shi, KR;
Hong Seok Seo, Daejon-Shi, KR;
Doo Hee Cho, Daejon-Shi, KR;
Kyong Hon Kim, Daejon-Shi, KR;
Tae Hoon Lee, Daegu-Shi, KR;
Jong Heo, Seoul, KR;
Yong Gyu Choi, Daejon-Shi, KR;
Bong Je Park, Busan-Shi, KR;
Hong Seok Seo, Daejon-Shi, KR;
Doo Hee Cho, Daejon-Shi, KR;
Kyong Hon Kim, Daejon-Shi, KR;
Tae Hoon Lee, Daegu-Shi, KR;
Jong Heo, Seoul, KR;
Electronics and Telecommunications Research Institute, Daejon-Shi, KR;
Abstract
The present invention relates to a main wavelength band of a pump light source capable of improving the pump efficiency while using 1.6 μm fluorescence emitted from Ho:I→Itransition as an optical amplifier, and an assistant pump wavelength band capable of accomplishing population inversion betweenIlevel andIlevel to improve the signal gain characteristics of such amplifier. The optical amplifier using optical materials to which holmium or holmium and terbium, holmium and europium, holmium and neodymium or holmium and dysprosium, etc. are doped can be pumped using a light source that emits light of 11,200˜11,500 cmor a light source that emits light of 6,000˜6,500 cm.