Gaussian-shaped Optical Frequency Comb Generation for Microwave Photonic Filtering

TL;DR

This paper demonstrates the generation of a Gaussian-shaped optical frequency comb using electro-optic modulators and applies it to microwave photonic filtering, achieving high sidelobe suppression without additional pulse shaping.

Contribution

The work introduces a method to generate a 41-line Gaussian optical frequency comb solely with electro-optic modulators for improved microwave photonic filtering.

Findings

Achieved >43 dB sidelobe suppression in microwave filters.

Generated a 41-line 10-GHz Gaussian-shaped optical frequency comb.

Eliminated the need for a pulse shaper in the filtering process.

Abstract

Using only electro-optic modulators, we generate a 41-line 10-GHz Gaussian-shaped optical frequency comb. We use this comb to demonstrate apodized microwave photonic filters with greater than 43-dB sidelobe suppression without the need for a pulse shaper.