Fiber-optic power limiter device based on carbon nanotubes
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915544604606464 |
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| author | Borisova, Ekaterina Ponosova, Anastasiya Arutyunyan, Natalia Shilko, Alexey Obraztsova, Elena Galagan, Boris Makarov, Vadim |
| author_facet | Borisova, Ekaterina Ponosova, Anastasiya Arutyunyan, Natalia Shilko, Alexey Obraztsova, Elena Galagan, Boris Makarov, Vadim |
| contents | We experimentally demonstrate a power limiter based on single-walled carbon nanotubes dispersed in a polymer matrix. This simple fiber-optic device permanently increases its attenuation when subjected to 50-mW or higher cw illumination at 1550 nm and initiates a fiber-fuse effect at 1 to 5 W. It may be used for protecting quantum key distribution equipment from light-injection attacks. We demonstrate its compatibility with phase- and polarisation-encoding quantum key distribution systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_09301 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fiber-optic power limiter device based on carbon nanotubes Borisova, Ekaterina Ponosova, Anastasiya Arutyunyan, Natalia Shilko, Alexey Obraztsova, Elena Galagan, Boris Makarov, Vadim Quantum Physics We experimentally demonstrate a power limiter based on single-walled carbon nanotubes dispersed in a polymer matrix. This simple fiber-optic device permanently increases its attenuation when subjected to 50-mW or higher cw illumination at 1550 nm and initiates a fiber-fuse effect at 1 to 5 W. It may be used for protecting quantum key distribution equipment from light-injection attacks. We demonstrate its compatibility with phase- and polarisation-encoding quantum key distribution systems. |
| title | Fiber-optic power limiter device based on carbon nanotubes |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2510.09301 |