Microwave photonic notch filter based on the use of the chromatic dispersion parameter and the length of an optical link

In this paper, an approach to achieving a microwave photonic notch filter based on the use of the chromatic dispersion parameter and the length of an optical link is presented. The proposed photonic notch filter has the ability to adjust its bandwidth by varying the length of the optical link. A set of simulations are carried out for lengths of 25 km, 38 km , 50 km and 63 km. Theoretical, simulated and experimental results are in good agreement for every location of the notches obtained. The filter has potential application in the field of optical communications systems.