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The authors have investigated the gain characteristics of a fibre-optical parametric amplifier operating near zero-dispersion wavelength. The gain spectrum is very sensitive to the difference between the pump and zero-dispersion wavelengths. A gain of 12 dB and an output saturation power of 8.4 dBm have been demonstrated, with a pump power of 180 mW.
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Kagi et al. (1995) studied this question.
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