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 language | English |
|---|---|
| Pages (from-to) | 3777-3780 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 45 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 2020 Jul 1 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics