Abstract
A photonic approach for generating an arbitrary chirp microwave waveform using optical coupler of different length is proposed and experimentally demonstrated. The chirp microwave waveform can be used in Radar system to improve its range Doppler resolution. The paper give the specific details about various performance parameters like input signal frequency and power, output signal parameters viz output frequency, chirp rate, chirp bandwidth and time bandwidth product etc. In this proposed approach two single mode optical fibers of different lengths are used to create the phase variation of the light coming from the continuous wave laser. The overall model and its performance parameters are computed on optiwave software and compared with experimental results carried out in lab which shows the validity of our experimental setup.
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