Influence of the span loss variation in cascaded EDFA's on the receiver dynamic range in WDM systems

Influences of the gain or the span loss variations in cascaded EDFAs on the receiver dynamic range are investigated for WDM systems and compared the results with single channel systems. The optical power dynamic range of the receiver additionally required in the WDM system is approximately proportio...

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Bibliographic Details
Published in:IEEE photonics technology letters 1998-02, Vol.10 (2), p.288-290
Main Authors: Kim, Hyang Kyun, Park, Seo Yeon, Lee, Young Goo, Lee, Dong Ho, Park, Chang Soo
Format: Article
Language:English
Subjects:
Dynamic range
Erbium-doped fiber amplifier
Optical fiber communication
Optical losses
Optical noise
Optical pumping
Optical receivers
Optical saturation
Signal to noise ratio
Wavelength division multiplexing
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Summary:Influences of the gain or the span loss variations in cascaded EDFAs on the receiver dynamic range are investigated for WDM systems and compared the results with single channel systems. The optical power dynamic range of the receiver additionally required in the WDM system is approximately proportional to the number of cascaded EDFAs and the span loss margin. The slope coefficient is about 0.12 dB/EDFA/(dB in the span loss margin) when the channels are allocated in the region of 1545-1557 nm. The increment of optical power dynamic range becomes smaller for the channels allocated near 1545 mm.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.655387