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Cascaded four-wave-mixing was effectively demonstrated in a graphene-coated-microfiber, by using a pulsed pump at 1550 nm, which may be useful for realization of graphene based fiber-optic nonlinear devices, e.g. lasers, filters, modulators and regenerators.
We demonstrate with a pulsed dye laser that a linearly polarised laser pump can mix with a spectrum of unpolarised light to generate a new wave at the laser wavelength with a polarisation state orthogonal to that of the laser pump.
Nondegenerate four-wave mixing in a birefringent optical fibre pumped with two waves of orthogonal linear polarisations at different wavelengths is studied theoretically. It is shown that, under appropriate conditions, the frequency shift in the four-wave mixing process is proportional to the polarisation-mode dispersion in the fibre, and insensitive to the difference between the two pump wavelengths...
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