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Highly efficient optical fibre amplifier pumped by a 0.8 mu m band laser diode

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5 Author(s)
Horiguchi, M. ; NTT Opto-electron. Labs., Ibaraki, Japan ; Shimizu, M. ; Yamada, M. ; Yoshino, K.
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A highly efficient Er-doped fibre amplifier pumped by GaAlAs laser diodes is reported. Using a low Er-cluster content fibre with a high numerical aperture, the EDFA attains 39 dB signal gain for double LD pumping and 30 dB for single LD pumping at 1.536 mu m. A maximum gain coefficient of 1.3 dB/mW was achieved at the 0.827 mu m pump band.

Published in:

Electronics Letters  (Volume:26 ,  Issue: 21 )