Analysis on the transient response of 1.55-mu m/1.4-mu m dual-wavelength pumped thulium-doped fiber amplifiers

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The transient response of S- and S+-band thulium-doped fiber amplifiers with 1.4-mum/1.5-mum dual-wavelength pumping scheme was investigated both experimentally and theoretically. In contrast to conventional Erbium-doped fiber amplifiers, two characteristic time-constants related with F-3(4) and H-3(4) level lifetime were observed, implying the need of much complex transient control algorithm for the future applications. The amount of surviving channel gain, gain excursion, and related time constants showed changes in their response characteristics, depending on the combinations of main pump, subsidiary pump, and signal powers. A simplified numerical approach for the analysis of transient response in Thulium-doped fiber amplifiers under average inversion framework, will be provided.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2002-11
Language
English
Article Type
Article
Citation

IEEE PHOTONICS TECHNOLOGY LETTERS, v.14, no.11, pp.1503 - 1505

ISSN
1041-1135
DOI
10.1109/LPT.2002.803336
URI
http://hdl.handle.net/10203/79506
Appears in Collection
NT-Journal Papers(저널논문)
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