クボタ　ヒロカズ   Hirokazu Kubota   久保田　寛和    所属   追手門学院大学  理工学部 電気電子工学科    職種   教授
言語種別	英語
発行・発表の年月	1990/08
形態種別	論文
標題	Femtosecond erbium-doped optical fiber amplifier
執筆形態	共著・編著（代表編著を除く）
掲載誌名	Applied Physics Letters
掲載区分	国外
巻・号・頁	57(7),pp.653-655
著者・共著者	Masataka Nakazawa,Kenji Kurokawa,Hirokazu Kubota,Kazunori Suzuki,Yasuo Kimura
概要	A gain of 9 dB has been obtained in an erbium-doped optical fiber amplifier for input pulses with a peak power of 30 W, an average power of 30 μW (-15.2 dBm), and a pulse width of 260 fs. When the input peak power is increased in the soliton power regime, an adiabatic soliton narrowing occurs due to the optical gain. By increasing the pump power further, an optical gain enhanced soliton self-frequency shift dominates, which is due to the excitation of high-order soliton. Thus, soliton narrowing from 250 to 60 fs is observed.
DOI	10.1063/1.104102
ISSN	0003-6951
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