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Flattening of erbium-doped fibre amplifier gain spectrum using an acousto-optic tunable filter

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4 Author(s)
S. F. Su ; GTE Laboratories Inc., Waltham, MA, USA ; R. Olshansky ; D. A. Smith ; J. E. Baran

An acousto-optic tunable filter is employed to flatten the gain spectrum of an erbium-doped fibre amplifier. A relatively flat gain spectrum of 15 nm in bandwidth with variations of less than 1 dB is obtained by simultaneously applying eight closely-spaced RF signals to the acousto-optic tunable filter.

Published in:

Electronics Letters  (Volume:29 ,  Issue: 5 )