Physical fiber security by the state of polarization change detection

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F22%3APU144382" target="_blank" >RIV/00216305:26220/22:PU144382 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1117/12.2618490" target="_blank" >https://doi.org/10.1117/12.2618490</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2618490" target="_blank" >10.1117/12.2618490</a>

Result language
angličtina
Original language name
Physical fiber security by the state of polarization change detection
Original language description
The main topic of this paper is the detection state of polarization changes to enhance data security in fiber cable paths. The changes are generated by fiber manipulation or movements, which suggest potential security threats. Our designed system detects these changes using a polarization beam splitter and a pair of photodetectors. The values are subtracted from each other, sampled, and sent for analysis. The software detector applies FFT onto the signal and normalizes the output. The last step compares the sum of the bottom eighth of the spectrum against the threshold.
Czech name
—
Czech description
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Project
<a href="/en/project/VJ01010035" target="_blank" >VJ01010035: Security risks of photonic communication networks</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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