Fluoride-based erbium-doped fiber amplifier with inherently flat gain spectrum

  title={Fluoride-based erbium-doped fiber amplifier with inherently flat gain spectrum},
  author={Motokazu Yamada and Takuya Kanamori and Y. Terunuma and Katsunari Oikawa and Makoto Shimizu and Seiichi Sudo and Kiichi Sagawa},
  journal={IEEE Photonics Technology Letters},
We successfully developed a fluoride-based Er/sup 3+/-doped fiber amplifier (F-EDFA). An average signal gain of 26 dB was achieved for 8 channel wavelength division multiplexed (WDM) signals in the 1532-1560 nm wavelength region with a gain excursion of less than 1.5 dB at an input signal power of -20 dBm per channel. Furthermore, we studied the amplification characteristics of the F-EDFA for WDM signals. The following experimental results were obtained. (1) For an 8-channel WDM signal in the… CONTINUE READING
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