Far-detuned Four-wave Mixing Frequency Conversion Based on Special Dispersion Controlled Highly Nonlinear Fiber

We report on the conception, fabrication and characterization of a new concept of optical fiber enabling a precise control of the ratio between the 2nd and 4th-order chromatic dispersion (respectively β2 and β4) at 1.55 μm which is primordial for ensuring an effective frequency conversion by far-detuned Four-Wave-Mixing (FWM). Experimental demonstration relying on an atypical discretized highly nonlinear fiber (D-HNLF) is shown and discussed.