DocumentCode
780272
Title
L-band erbium-doped fibre amplifier with clamped- and flattened-gain using FBG
Author
Harun, S.W. ; Ahmad, H.
Author_Institution
Dept. of Phys., Univ. of Malaya, Kuala Lumpur, Malaysia
Volume
39
Issue
17
fYear
2003
Firstpage
1238
Lastpage
1240
Abstract
A gain clamped long wavelength band erbium-doped fibre amplifier (L-band EDFA) based on a ring laser cavity is demonstrated using a fibre Bragg grating (FBG) at the output end of the amplifier. This new design provides a good gain clamping as well as a gain flattening. The gain is clamped at 16.9 dB with gain variation of less than 0.1 dB from input signal power of -40 to -18 dBm by setting the VOA=5 dB. Also, the amplifier has the flattest gain spectrum at VOA=5. The gain variation is less than 1.0 dB within the wavelength range from 1570 to 1600 nm. This gain clamped amplifier also can support a 12 channel WDM system.
Keywords
Bragg gratings; erbium; laser cavity resonators; optical communication equipment; optical fibre amplifiers; ring lasers; wavelength division multiplexing; 1570 to 1600 nm; 16.9 dB; Er-doped fibre amplifier; FBG; L-band EDFA; WDM system; fibre Bragg grating; flattened-gain; gain clamped EDFA; long wavelength band EDFA; ring laser cavity;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20030823
Filename
1231298
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