Gain-clamping in two-stage L-band EDFA using an unwanted backward ase from second stage
A gain clamping technique for the long wavelength band erbium-doped fiber amplifier (L-band EDFA) is presented. It uses two circulators and a broad band fiber Bragg grating to route wasted backward C-band ASE from the second stage and launch it back into the input end of the first stage of a two-sta...
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Elsevier
2003
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