Comparison of the static and dynamic properties of single- and double-pass partially gain-clamped two-stage L-band EDFAs

We investigate the static and dynamic properties of partially gain-clamped two-stage L-band erbium-doped fiber amplifiers (EDFAs) in single- and double-pass configurations. While both amplifiers can be designed to provide the same gain-clamped performance, the double-pass configuration requires /spl...

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Bibliographic Details
Published in:IEEE photonics technology letters 2003-04, Vol.15 (4), p.519-521
Main Authors: Bing Xia, Pudo, D., Chen, L.R.
Format: Article
Language:English
Subjects:
Amplifiers
Bragg gratings
Broadband amplifiers
Conversion
Dynamic mechanical properties
Dynamic tests
Dynamics
Erbium-doped fiber amplifier
Fiber gratings
Gain
L-band
Noise levels
Noise measurement
Performance gain
Power amplifiers
Power conversion
Pumps
Wavelength division multiplexing
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Summary:We investigate the static and dynamic properties of partially gain-clamped two-stage L-band erbium-doped fiber amplifiers (EDFAs) in single- and double-pass configurations. While both amplifiers can be designed to provide the same gain-clamped performance, the double-pass configuration requires /spl ap/40% less pump power and /spl ap/22% shorter length of EDF in the second stage, and has a corresponding improvement in power conversion efficiency of 45%, but at the expense of an increase in noise figure (/spl ap/0.5 dB) and dynamic gain variation.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2003.809294