Automatic and accurate low cost high frequency characterisation technique of chirped fibre Bragg gratings

We demonstrate a high frequency low cost technique for characterising the reflectivity and time delay spectral response of chirped fibre Bragg gratings. Wavelength resolution of 0.06 nm, time delay accuracy below 1 ps, automatic and non-interferometric measurement are their main advantages. The technique does not need expensive tunable laser systems, is not based on optical interferometry and can be automatised in a production line.