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High-gain coefficient long-wavelength-band erbium-doped fiber amplifier using 1530-nm band pump

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4 Author(s)
Bo-Hun Choi ; Sch. of Eng., Inf. & Commun. Univ., Taejon, South Korea ; Hyo-Hoon Park ; Moojung Chu ; Seung Kwan Kim

A 1530-nm band has been studied as a pump wavelength for the long-wavelength-band erbium-doped fiber amplifier (L-band EDFA). The pump source is built using a tunable light source and cascaded conventional-band (C-band) EDFA. The L-band EDFA uses a forward pumping scheme. Within the 1530-nm band, the 1545-nm pump demonstrates 0.45-dB/mW gain coefficient, which is twice better than that of conventional 1480-nm pumped EDFA. The noise figure of the 1530-nm pump is at worst 6.36 dB, which is 0.75 dB higher than that of the 1480-nm pumped EDFA. Such high-gain coefficient indicates that the L-band EDFA consumes low power.

Published in:

Photonics Technology Letters, IEEE  (Volume:13 ,  Issue: 2 )