Distributed Sensing of Single Mode Fibers with Correlation Techniques

Autor:	Azendorf, Florian, Sandmann, André, Eiselt, Michael, Schmauss, Bernhard
Rok vydání:	2022
Předmět:	Physics - Instrumentation and Detectors Physics - Optics
Zdroj:	23th ITG-Symposium Photonic Networks 2022
Druh dokumentu:	Working Paper
Popis:	In this paper, we report on the development progress of correlation-based optical time domain reflectometry (OTDR). Substituting the direct detection receiver with a coherent receiver enables to extract the phase and polarization information of the reflected signal. Furthermore, due to the mixing of a weak probe signal with a strong local oscillator the sensitivity of the receiver improved. This improvement was demonstrated by analyzing the reflection from an angled physical contact (APC) connector. To further quantify the improvements, we compare the direct detection correlation OTDR (C-OTDR) with the coherent detection correlation OTDR (CC-OTDR) with respect to the spatial and amplitude resolution. Comment: This work was partly funded by the German Federal Ministry of Education and Research (FKZ16KIS1279K) in the framework of the CELTIC-NEXT project AI-NET-Protect (Project ID C2019/3-4)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2209.14736 Zobrazit plný text záznamu View this record from Arxiv