Is a
Patent attributes
Patent Applicant
0
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Doo Hee Cho0
Bong Je Park0
Hong Seok Seo0
Jong Heo0
Kyong Hon Kim0
Tae Hoon Lee0
Yong Gyu Choi0
Date of Patent
February 8, 2005
0Patent Application Number
103295010
Date Filed
December 27, 2002
0Patent Citations Received
Patent Primary Examiner
Patent 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 Ho3+:5I5→5I7 transition as an optical amplifier, and an assistant pump wavelength band capable of accomplishing population inversion between 5I5 level and 5I7 level 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 cm−1 or a light source that emits light of 6,000˜6,500 cm−1.
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