Title :
Influence of the span loss variation in cascaded EDFA´s on the receiver dynamic range in WDM systems
Author :
Kim, Hyang Kyun ; Park, Seo Yeon ; Lee, Young Goo ; Lee, Dong Ho ; Park, Chang Soo
Author_Institution :
Lightwave Commun. Sect., Electron. & Telecommun. Res. Inst., Taejeon, South Korea
Abstract :
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.
Keywords :
erbium; fibre lasers; frequency allocation; optical losses; optical receivers; wavelength division multiplexing; 1545 to 1557 nm; WDM systems; cascaded EDFAs; channel allocation; optical power dynamic range; receiver dynamic range; single channel systems; slope coefficient; span loss margin; span loss variation; 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;
Journal_Title :
Photonics Technology Letters, IEEE
