Abstract

In this Letter, we derive analytically the complex optical spectrum of a pulsed laser source obtained when a frequency comb generated by phase modulation is input into a synchronized intensity modulator. We then show how this derivation of the spectrum may help to achieve unprecedented, to the best of our knowledge, accuracy during the experimental spectrum correction step usually carried out with an optical spectrum processor. In numerical examples, for a given average power, we present up to a 75% increase in peak power and an enhancement of the extinction ratio by at least 3 orders of magnitude. This method also enables large-factor rate-multiplications of these versatile coherent sources using the Talbot effect with negligible signal degradation.

© 2020 Optical Society of America

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