Abstract
The properties of microscopic semiconductor lasers with external optical feedback are theoretically analysed. The size-dependence of the critical feedback level, at which the laser first becomes unstable, is clarified, showing how the dominant indicator of feedback stability is the gain of the laser, irrespective of size. The impact of increased spontaneous emission β-factors and over-damped operation is evaluated, exposing a diminished phase sensitivity of microscopic lasers, and a trade-off between modulation bandwidth and feedback stability is identified.
| Original language | English |
|---|---|
| Journal | Optics Express |
| Volume | 29 |
| Issue number | 10 |
| Pages (from-to) | 14182-14188 |
| ISSN | 1094-4087 |
| DOIs | |
| Publication status | Published - 10 May 2021 |
Bibliographical note
Funding Information:Acknowledgments. Authors gratefully acknowledge funding by Villum Fonden via the NATEC Center of Excellence (Grant No. 8692), the European Research Council (ERC) under the European Union’s Horizon 2020 Research and Innovation Programme (Grant No. 834410 FANO), and the Danish National Research Foundation (Grant No. DNRF147 NanoPhoton).
Publisher Copyright:
© 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.