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Thulium-doped tellurite fiber amplifier

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7 Author(s)
Taylor, E.R.M. ; Optoelectronics Res. Center, Univ. of Southampton, UK ; Ng, L.N. ; Nilsson, J. ; Caponi, R.
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Gain in the S-band is demonstrated in a thulium-doped tellurite fiber amplifier using dual pump and bidirectional pumping schemes. Two pump schemes were employed: 795/1064 and 1047/1550 nm. The gain profile is broader than achieved in a fluoride fiber and overlaps with the C-band of the erbium-doped fiber amplifier. We reach a fiber-to-fiber gain of 11 dB and an internal gain of 35 dB.

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Photonics Technology Letters, IEEE  (Volume:16 ,  Issue: 3 )