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| Autores principales: | , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2405.10203 |
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| _version_ | 1866909205521235968 |
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| author | Pilat, Florian Windischhofer, Andreas Beiser, Maximilian Pecile, Vito F. Gangrskaia, Elizaveta Pugžlys, Audrius Weih, Robert Koeth, Johannes Baltuška, Andrius Heckl, Oliver H. Schwarz, Benedikt |
| author_facet | Pilat, Florian Windischhofer, Andreas Beiser, Maximilian Pecile, Vito F. Gangrskaia, Elizaveta Pugžlys, Audrius Weih, Robert Koeth, Johannes Baltuška, Andrius Heckl, Oliver H. Schwarz, Benedikt |
| contents | Interband Cascade Lasers (ICL) have matured into a versatile technological platform in the mid-infrared spectral domain. To broaden their applicability even further, ongoing research pursues the emission of ultrashort pulses. The most promising approach is passive mode-locking with a fast saturable absorber. However, despite vast attempts no passive mode-locked ICL has been demonstrated up to date. In this study we perform pump-probe measurements on the ICL gain and show that its dynamics are mainly ($\sim$70%) governed by a fast recovery time of 2 ps. Our findings explain why passive mode-locking has not succeeded so far, shedding a new light on ICL dynamics as we propose strategies to overcome the current limitations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_10203 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Fast Gain Dynamics in Interband Cascade Lasers Pilat, Florian Windischhofer, Andreas Beiser, Maximilian Pecile, Vito F. Gangrskaia, Elizaveta Pugžlys, Audrius Weih, Robert Koeth, Johannes Baltuška, Andrius Heckl, Oliver H. Schwarz, Benedikt Optics Interband Cascade Lasers (ICL) have matured into a versatile technological platform in the mid-infrared spectral domain. To broaden their applicability even further, ongoing research pursues the emission of ultrashort pulses. The most promising approach is passive mode-locking with a fast saturable absorber. However, despite vast attempts no passive mode-locked ICL has been demonstrated up to date. In this study we perform pump-probe measurements on the ICL gain and show that its dynamics are mainly ($\sim$70%) governed by a fast recovery time of 2 ps. Our findings explain why passive mode-locking has not succeeded so far, shedding a new light on ICL dynamics as we propose strategies to overcome the current limitations. |
| title | Fast Gain Dynamics in Interband Cascade Lasers |
| topic | Optics |
| url | https://arxiv.org/abs/2405.10203 |