Nonlinear four-wave mixing in erbium-doped fibre amplifiers
Four-wave mixing in erbium-doped fibre amplifiers is presented and studied. Coupling in two cases is demonstrated: first, where one laser supplies all three input beams, and second, where two different lasers are used and the coupling is measured as a function of their relative detuning. This has potential uses in dynamic fibre-optic applications, such as filters and wavelength routing.
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Comment: Interpolation using the discrete sine transform with increased accuracy