Title :
Performance degradation of all-optical gain-clamped EDFAs due to relaxation-oscillations and spectral-hole burning in amplified WDM networks
Author :
Luo, G. ; Zyskind, J.L. ; Sun, Y. ; SRIVASTAVA, ANURAG K. ; Sulhoff, J.W. ; Wolf, C. ; Ali, M.A.
Author_Institution :
Dept. of Electr. Eng., City Univ. of New York, NY, USA
Abstract :
Dynamic power excursion imposed on the amplified signal due to relaxation oscillations in the laser and static residual variations in signal gain arising from spectral-hole burning (SHB) were observed in high-resolution measurements of laser automatic gain control (AGC) of erbium-doped fiber amplifiers (EDFAs). These effects will limit the ability of laser AGC to protect against power transients in amplified wavelength-division multiplexed (WDM) optical networks.
Keywords :
automatic gain control; erbium; fibre lasers; optical fibre networks; optical hole burning; optical variables control; telecommunication control; wavelength division multiplexing; AGC; Er-doped fiber amplifiers; WDM; all-optical gain-clamped EDFA; amplified WDM networks; amplified signal; amplified wavelength-division multiplexed optical networks; dynamic power excursion; high-resolution measurements; laser; laser automatic gain control; performance degradation; power transients; relaxation-oscillations; signal gain; spectral-hole burning; static residual variations; Degradation; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Gain control; Gain measurement; Power lasers; Power measurement; Protection; Wavelength division multiplexing; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
