Theoretical analysis of optical feedback-controlled emission of dual-wavelength lasers
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866916946375606272 |
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| author | Ladouce, Mathieu Marin-Palomo, Pablo Virte, Martin |
| author_facet | Ladouce, Mathieu Marin-Palomo, Pablo Virte, Martin |
| contents | Dual and multi-wavelength lasers, i.e., lasers with the ability to emit at two or more wavelengths in a controlled fashion, represent an exciting new twist in laser physics. Harnessing the mode competition to control them better remains, however, a challenge. In this work, we numerically explore the effect of optical feedback on the emission properties of a dual-wavelength laser using a rate equation model. We focus on switching capability and investigate the impact of key laser and feedback parameters. We connect the emergence of simultaneous emission to a lower cross-saturation between modes, and demonstrate that robust switching can be achieved using a short feedback cavity and a sufficiently strong feedback. In particular and in contrast to previous publications, we highlight that the feedback phase difference between the two modes is not a critical parameter. Our results are consistent with recent experimental observations, supporting the relevance of feedback-based control techniques for multi-wavelength lasers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_09246 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Theoretical analysis of optical feedback-controlled emission of dual-wavelength lasers Ladouce, Mathieu Marin-Palomo, Pablo Virte, Martin Optics Dual and multi-wavelength lasers, i.e., lasers with the ability to emit at two or more wavelengths in a controlled fashion, represent an exciting new twist in laser physics. Harnessing the mode competition to control them better remains, however, a challenge. In this work, we numerically explore the effect of optical feedback on the emission properties of a dual-wavelength laser using a rate equation model. We focus on switching capability and investigate the impact of key laser and feedback parameters. We connect the emergence of simultaneous emission to a lower cross-saturation between modes, and demonstrate that robust switching can be achieved using a short feedback cavity and a sufficiently strong feedback. In particular and in contrast to previous publications, we highlight that the feedback phase difference between the two modes is not a critical parameter. Our results are consistent with recent experimental observations, supporting the relevance of feedback-based control techniques for multi-wavelength lasers. |
| title | Theoretical analysis of optical feedback-controlled emission of dual-wavelength lasers |
| topic | Optics |
| url | https://arxiv.org/abs/2509.09246 |