γ -ray resistance of P-Al-codoped EDFs for hybrid EDF As

Tomonori Kashiwada; Youichi Ishiguro; Hiroo Kanamori; Shinichi Okamoto

Optical Amplifiers and Their Applications
OSA Trends in Optics and Photonics Series (Optica Publishing Group, 1996),
paper FAW25

γ -ray resistance of P-Al-codoped EDFs for hybrid EDF As

Tomonori Kashiwada, Youichi Ishiguro, Hiroo Kanamori, and Shinichi Okamoto

Optical Amplifiers and Their Applications 1996

Monterey, California United States
ISBN: 1-55752-435-X

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T. Kashiwada, Y. Ishiguro, H. Kanamori, and S. Okamoto, "γ -ray resistance of P-Al-codoped EDFs for hybrid EDF As," in Optical Amplifiers and Their Applications, R. Jopson, K. Stubkjaer, and M. Suyama, eds., Vol. 5 of OSA Trends in Optics and Photonics Series (Optica Publishing Group, 1996), paper FAW25.

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Abstract

A hybrid erbium-doped fiber (EDF) has been developed as gain flattened amplifiers especially for 1.55 μm WDM transmission systems [1][2][3]. The hybrid EDF consists of serially cascaded Al-codoped EDF and P-Al-codoped EDF, and expected to be applicable not only terrestrial systems but also submarine systems. However, when installed in undersea, long-term reliability of the hybrid EDF should be confirmed. Especially, durability against y -ray irradiation is one of important items. In the Al-codoped EDF, some results with regard to the radiation resistance have already been reported [4] [5].

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