Broadband chaotic microwave generation through destabilization of period-one nonlinear dynamics in semiconductor lasers for radar applications

Chin Hao Tseng, Sheng Kwang Hwang

Research output: Contribution to journalArticlepeer-review

Abstract

This Letter studies a photonic approach for chaotic microwave generation through destabilization of periodone (P1) nonlinear dynamics in a semiconductor laser subject to intensity-modulated (IM) optical injection. Chaos can be excited when the modulation sideband perturbation carried by the IM optical injection is a few gigahertz higher than the lower oscillation sideband of the P1 dynamics. As a result, chaotic microwaves with a spectral distribution of more than 50 GHz and a bandwidth of about 33 GHz are generated without any time-delay signature or modulation-induced peak. Such features provide the generated chaotic microwaves with preferable characteristics for radar applications, including high detection resolution, superior detection unambiguity, strong anti-jamming capability, and simultaneous multi-band detection.

Original languageEnglish
Pages (from-to)3777-3780
Number of pages4
JournalOptics Letters
Volume45
Issue number13
DOIs
Publication statusPublished - 2020 Jul 1

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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