Title :
Fast transient response of L-band tellurite-based EDFAs and their optically gain-clamped behavior
Author :
Hu, E.S. ; Sakamoto, T. ; Yam, S.S.-H. ; An, F.-T. ; Marhic, M.E. ; Kazovsky, L.G.
Abstract :
We reported on the fast transient response of EDTFAs. The transient time of EDTFAs can be one-ninth as short as that of the EDSFAs with similar gain shape in L-band. We also demonstrated optically gain-clamped EDTFAs and showed that the power excursion due to SHB is comparable to or smaller than that in EDSFAs. The relaxation oscillation frequencies also give us information about the fast dynamics within EDTFAs. In summary, EDTFAs show superior controllability over EDSFAs for automatic gain control via either electrical or optical schemes. Further research will include modeling of the dynamic behavior of EDTFAs.
Keywords :
automatic gain control; erbium; optical communication equipment; optical fibre amplifiers; transient response; L-band; L-band tellurite-based EDFAs; automatic gain control; controllability; dynamic behavior modeling; fast dynamics; fast transient response; gain shape; optical schemes; optically gain-clamped EDTFAs; optically gain-clamped behavior; power excursion; relaxation oscillation frequencies; transient time; Bandwidth; Erbium-doped fiber amplifier; L-band; Optical amplifiers; Optical crosstalk; Optical pumping; Power amplifiers; Steady-state; Stimulated emission; Transient response;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036523
