Title :
Optimum gain-equalised configuration of wideband erbium-doped fibre amplifier using inter-stage samarium-doped fibre and midway isolator
Author :
Chen, Y.K. ; Liaw, S.-K.
Author_Institution :
Inst. of Electro-Opt. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
fDate :
11/7/1996 12:00:00 AM
Abstract :
The optimum gain-equalised configuration for the erbium-doped fibre amplifier (EDFA) using a samarium-doped fibre (SDF) is investigated. The dual-pumping scheme with inter-stage SDF and midway isolator was found to be the optimum scheme for obtaining flattened high spectral gain with variation of ⩽±0.7 dB and with a low noise figure of ⩽5.6 dB within the 1530-1560 nm range. This amplifier is suitable for multiwavelength transmission systems containing EDFA cascades
Keywords :
equalisers; erbium; fibre lasers; optical fibre communication; optical pumping; optical repeaters; wavelength division multiplexing; 1530 to 1560 nm; 5.6 dB; EDFA cascades; WDM; dual-pumping scheme; flattened high spectral gain; gain-equalised configuration; inter-stage Sm-doped fibre; midway isolator; multiwavelength transmission systems; noise figure; wideband Er3+-doped fibre amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19961411
