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Gain spectrum control method for gain-shifted TDFA employing single wavelength pumping

Gain spectrum control method for gain-shifted TDFA employing single wavelength pumping

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A novel gain spectrum control method is proposed for a bidirectional pumped gain-shifted thulium-doped fibre amplifier (GS-TDFA) with single wavelength pumping. As a result, we achieved a gain excursion of ±0.3 dB for a total input signal power of −7 to −30 dBm.

References

    1. 1)
      • Kasamatsu, T., Yano, Y., Ono, T.: `Laser-diode-pumped highly-efficient gain-shifted thulium-doped fiber amplifier operating in the 1480–1510 nm band', TuQ4, OFC2001, 2001, Anaheim, CA, USA
    2. 2)
      • Roy, F., Sauze, A., Baniel, P., Bayart, D.: `0.8 µm+1.4 µm pumping for gain-shifted TDFA with power conversion efficiency exceeding 50%', PD4, OAA2001, 2001, Anaheim, CA, USA
    3. 3)
      • Gain-shifted TDFA employing high concentration doping technique with high internal power conversion efficiency of 70%
    4. 4)
      • Lee, W.J., Lee, C.H., Byun, J., Jonghan, P., Park, N.: `Gain excursion and tilt compensation algorithm for TDFA using 1.4 µm/1.5 µm dual wavelength pump control', ThZ3, OFC2002, 2002, Anaheim, CA, USA
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