Continuously tunable chirped microwave waveform generation using an optically pumped linear chirped fiber bragg grating

Summary form only given, as follows. A novel approach to generating a chirped microwave waveform with continuously tunable chirp rate using an optically pumped linearly chirped fiber Bragg grating (LCFBG) based on a temporal interferometer is proposed and demonstrated. A theoretical analysis is performed which is verified by an experiment. A linearly chirped microwave waveform is generated with a tunable chirp rate from 79 to 64 GHz/ns by changing the injection current of the pump laser diode (LD) from 0 to 100 mA.