Title :
Flattening of erbium-doped fibre amplifier gain spectrum using an acousto-optic tunable filter
Author :
Su, S.F. ; Olshansky, R. ; Smith, David A. ; Baran, J.E.
Author_Institution :
GTE Laboratories Inc., Waltham, MA, USA
fDate :
3/4/1993 12:00:00 AM
Abstract :
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.
Keywords :
acousto-optical devices; erbium; fibre lasers; optical communication equipment; optical filters; tuning; Er doped optical fibre; acousto-optic tunable filter; closely-spaced RF signals; fibre amplifier; gain spectrum;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930319
