A photonic ultra-wideband pulse generator based on relaxation oscillations of a semiconductor laser

Xianbin Yu (Corresponding author), Timothy Braidwood Gibbon, Michal Pawlik, Søren Blaaberg, Idelfonso Tafur Monroy

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Abstract

A photonic ultra-wideband (UWB) pulse generator based on relaxation oscillations of a semiconductor laser is proposed and experimentally demonstrated. We numerically simulate the modulation response of a direct modulation laser (DML) and show that due to the relaxation oscillations of the laser, the generated signals with complex shape in time domain match the Federal Communications Commission (FCC) mask in the frequency domain. Experimental results using a DML agree well with simulation predictions. Furthermore, we also experimentally demonstrate the generation of FCC compliant UWB signals by externally injecting a distributed feedback (DFB) laser.
Original languageEnglish
Pages (from-to)9680-9687
Number of pages8
JournalOptics Express
Volume17
Issue number12
DOIs
Publication statusPublished - 2009
Externally publishedYes

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