Time-Resolved spectroscopy for laser chirp characterization and self-heterodyne generation of apodized-NLFM microwave pulses

Pedro Tovar,Jean Pierre Von Der Weid,Ricardo M Ribeiro,Vladimir B Jabulka,Luis E Ynoquio H

doi:10.1109/mwp.2018.8552851

Time-Resolved spectroscopy for laser chirp characterization and self-heterodyne generation of apodized-NLFM microwave pulses

Pedro Tovar, Jean Pierre Von Der Weid + Show 3 more

https://doi.org/10.1109/mwp.2018.8552851

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Publication Date: Oct 1, 2018

Citations: 13

Affiliation: Pontifical Catholic University of Rio de Janeiro, Universidade Federal Fluminense

#Non-linear Frequency Modulation #Self-heterodyne Scheme + Show 8 more

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Abstract

This paper reports the photonic generation of apodized non-linear frequency modulation (NLFM) microwave pulses by using a self-heterodyne scheme. Time-resolved optical spectroscopy was developed for the characterization of the laser diode chirp. By using a step-shaped current stimulus the laser chirp transfer function H(s) was obtained.With knowledge of H(s), a numerical model produced the suitable current stimulus i(t) needed to generate apodized-shaped radio frequency chirped pulses through self-heterodyning. Experiment results agreed with the numerical simulations.

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