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Gain-flattened tellurite-based EDFA with a flat amplification bandwidth of 76 nm

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8 Author(s)
Yamada, M. ; NTT Opto-Electron. Labs., Ibaraki, Japan ; Mori, A. ; Kobayashi, K. ; Ono, H.
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We describe a tellurite-based Er/sup 3+/-doped fiber amplifier (EDFA) with a flat amplification bandwidth of 76 nm and a noise figure of less than 7 dB. Furthermore, a parallel-type amplifier composed of this EDFA and a 1.45-μm-band Tm/sup 3+/-doped fluoride fiber amplifier achieved a flat amplification bandwidth of 113 nm.

Published in:

Photonics Technology Letters, IEEE  (Volume:10 ,  Issue: 9 )