Abstract
A simple gain-flattened L-band erbium-doped fiber amplifier (EDFA) is demonstrated. An L-band flat gain range of 20 nm (1560–1580 nm) is achieved for use in wavelength-division multiplexing (WDM) transmission systems. Gain flatness with a 1 dB gain discrepancy is obtained through manipulation of the pump power, and no additional devices (gain equalizer, attenuator, fiber-Bragg grating) are required. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 26: 221–223, 2000.
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