Double-clad Nd-doped fiber amplifiers for transmitter of interorbit communications

Yoshihito Hirano; Yasuhiro Shoji; Kenji Tatsumi; Minoru Yoshida; Tomohiro Araki; Yasumasa Hisada

doi:10.1117/12.273699

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24 April 1997 Double-clad Nd-doped fiber amplifiers for transmitter of interorbit communications

Yoshihito Hirano; Yasuhiro Shoji; Kenji Tatsumi; Minoru Yoshida; Tomohiro Araki; Yasumasa Hisada

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Proceedings Volume 2990, Free-Space Laser Communication Technologies IX; (1997) https://doi.org/10.1117/12.273699
Event: Photonics West '97, 1997, San Jose, CA, United States

Abstract

Since Nd-doped fiber amplifiers could be used as power amplifiers for high data rate optical inter-orbit communications, we have fabricated and studied a square shaped double clad Nd-doped fiber for the 1.06 micrometers amplifier characteristics. The output signal power is not saturated up to 1 watt level using the single frequency broad linewidth signal source. It is, however, saturated at a few hundred milliwatts by a stimulated Brillouin scattering effect using narrow linewidth non-modulated linewidth signal source. The maximum output power of 1.17 Watts is obtained with extraction efficiency of 37 percent from absorbed pump power. The net gain is estimated more than 25dB.

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Yoshihito Hirano, Yasuhiro Shoji, Kenji Tatsumi, Minoru Yoshida, Tomohiro Araki, and Yasumasa Hisada "Double-clad Nd-doped fiber amplifiers for transmitter of interorbit communications", Proc. SPIE 2990, Free-Space Laser Communication Technologies IX, (24 April 1997); https://doi.org/10.1117/12.273699

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