Laser-diode-pumped Yb:YAG laser as a new pump source and its application to an Er3+, Yb3+-codoped high-output-power fiber amplifier |
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| Authors: | T Kasamatsu T Sumiyoshi H Sekita |
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| Institution: | (1) Optoelectronics and High Frequency Device Research Laboratories, NEC Corporation, 4-1-1 Miyazaki, Miyamae-ku, Kawasaki, Kanagawa 216-8555, Japan (Fax: +81-44/856-2224, E-mail: kasamatu@oel.cl.nec.co.jp), JP |
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| Abstract: | We propose a laser-diode-pumped Yb:YAG laser as a novel practical fiber amplifier pump source, and describe its first successful
application of high-output-power operation (850 mW=+29.3 dB m) of an Er3+,Yb3+-codoped fiber amplifier at 1.55 μm. We have developed both bulk and microchip Yb:YAG lasers and obtained 3.3 W and 2.7 W,
respectively, in the cw mode at room temperature. Laser-diode-pumped Yb:YAG lasers are shown to have a potential applicability
to such fiber amplifiers as Pr3+-doped amplifiers and Tm3+-doped amplifiers, as well as Er3+,Yb3+-codoped fiber amplifiers.
Received: 12 August 1999 / Revised version: 3 September 1999 / Published online: 20 October 1999 |
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| Keywords: | PACS: 42 55 R 42 60 B 42 60 D |
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