Abstract
An experiment on gain enhancement in the long wavelength band erbium-doped fiber amplifier (L-band EDFA) is demonstrated using dual forward pumping scheme in double-pass system. Compared to a single-stage single-pass scheme, the small signal gain for 1580 nm signal can be improved by 13.5 dB. However, a noise figure penalty of 2.9 dB was obtained due to the backward C-band ASE from second stage and the already amplified signal from the first pass that extracting energy from the forward C-band ASE. The maximum gain improvement of 13.7 dB was obtained at a signal wavelength of 1588 nm while signal and total pump powers were fixed at -30 dBm and 92 mW, respectively.
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Harun, S.W., Tamchek, N., Poopalan, P. et al. High gain L-band erbium-doped fiber amplifier with two-stage double-pass configuration. Pramana - J Phys 61, 93–97 (2003). https://doi.org/10.1007/BF02704513
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DOI: https://doi.org/10.1007/BF02704513
Keywords
- Erbium-doped fibre
- optical amplifier
- L-band erbium-doped fiber amplifier
- two-stage erbium-doped fiber amplifier
- amplified spontaneous emission