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Gain spectrum control method for gain-shifted TDFA employing single wavelength pumping

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3 Author(s)
S. Aozasa ; Fiber Amplifiers Res. Group, Nippon Telegraph & Telephone Corp., Kanagawa, Japan ; M. Shimizu ; H. Masuda

A novel gain spectrum control method is proposed for a bidirectional pumped gain-shifted thulium-doped fibre amplifier (GS-TDFA) with single wavelength pumping. As a result, we achieved a gain excursion of ±0.3 dB for a total input signal power of -7 to -30 dBm.

Published in:

Electronics Letters  (Volume:38 ,  Issue: 22 )