Addressing modulational instability in anti-resonant hollow-core fibers for pulse compression
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866917047644979200 |
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| author | Hemsworth, Michael Hammond, TJ Mills, Arthur K. Jones, David J. |
| author_facet | Hemsworth, Michael Hammond, TJ Mills, Arthur K. Jones, David J. |
| contents | When pulses propagate in gas-filled anti-resonant hollow-core fibers (AR-HCFs) modulational instability (MI) can lead to pulse break-up and loss of coherence. In pulse broadening and compression schemes, MI is a parasitic effect that induces significant shot-to-shot fluctuations of the peak power of compressed pulses and increases rapidly over a narrow range of input pulse energies. In this work we use experimental studies and supporting numerical simulations to compare two AR-HCFs that are chosen to enhance or suppress MI. We demonstrate that judicious selection of the wall thickness of the anti-resonant elements (AREs) can drastically reduce the MI gain, thereby increasing the limit of pulse energy scaling of stable ultrafast pulse compression. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_23793 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Addressing modulational instability in anti-resonant hollow-core fibers for pulse compression Hemsworth, Michael Hammond, TJ Mills, Arthur K. Jones, David J. Optics When pulses propagate in gas-filled anti-resonant hollow-core fibers (AR-HCFs) modulational instability (MI) can lead to pulse break-up and loss of coherence. In pulse broadening and compression schemes, MI is a parasitic effect that induces significant shot-to-shot fluctuations of the peak power of compressed pulses and increases rapidly over a narrow range of input pulse energies. In this work we use experimental studies and supporting numerical simulations to compare two AR-HCFs that are chosen to enhance or suppress MI. We demonstrate that judicious selection of the wall thickness of the anti-resonant elements (AREs) can drastically reduce the MI gain, thereby increasing the limit of pulse energy scaling of stable ultrafast pulse compression. |
| title | Addressing modulational instability in anti-resonant hollow-core fibers for pulse compression |
| topic | Optics |
| url | https://arxiv.org/abs/2510.23793 |