Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Sandmann, André"'
Publikováno v:
2023 European Conference on Optical Communication (ECOC)
A coherent optical subassembly (COSA) is evaluated for coherent-correlation optical time domain reflectometry (CC-OTDR) based fibre sensing. Even though the COSA was originally designed for digital communication applications, acoustic signals with fr
Externí odkaz:
http://arxiv.org/abs/2311.12843
Publikováno v:
24. VDE ITG Fachtagung Photonische Netze 2023
Fiber optic sensing is becoming an important means to physically secure today's network infrastructure. However, a network-wide deployment of the monitors will require cost reduction of the interrogator system, which can only be achieved by highly in
Externí odkaz:
http://arxiv.org/abs/2306.04199
We report on methods to monitor the transmission path in optical networks using a correlation-based OTDR technique with direct and coherent detection. A high probing symbol rate can provide picosecond-accuracy of the fiber propagation delay, while a
Externí odkaz:
http://arxiv.org/abs/2306.03455
Publikováno v:
Optical Fiber Communication Conference (OFC) 2023
Superimposed temperature variations and dynamic strain applied through a 400 Hz acoustic signal on a 195 m single-mode fiber section are successfully measured using a coherent correlation optical time domain reflectometry as an interrogator.
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Externí odkaz:
http://arxiv.org/abs/2305.16874
Publikováno v:
23th ITG-Symposium Photonic Networks 2022
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 r
Externí odkaz:
http://arxiv.org/abs/2209.14736
The use of optical fiber as sensor as well as transmission medium for sensing data is discussed, enabling the use of optically active sensors without power supply at distances of tens of kilometers. Depending on the interrogation system, a spatial re
Externí odkaz:
http://arxiv.org/abs/2207.02683
Autor:
Zanette Barbieri, Jéssica Caroline, Teresinha Veit, Márcia, Tino Balestra, Carlos Eduardo, Schneider, Ricardo, Peixoto de Araújo, Thiago, Stival Bittencourt, Paulo Rodrigo, da Cunha Gonçalves, Gilberto, Sandmann, André
Publikováno v:
Environmental & Social Management Journal / Revista de Gestão Social e Ambiental; 2024, Vol. 18 Issue 7, p1-25, 25p
Publikováno v:
In Optical Fiber Technology March 2019 48:22-27
Publikováno v:
Environmental & Social Management Journal / Revista de Gestão Social e Ambiental; 2024, Vol. 18 Issue 2, p1-17, 17p
Autor:
Sandmann, André, de Cassia Serra, Giseli, Portolan, Marcos Roberto, Hellmann, Liliane, Hallal, Renato, Azevedo dos Santos, José Airton, Maldaner Teodoro Sandmann, Ana Flavia, Piekarzewicz da Silva, Flavio
Publikováno v:
Environmental & Social Management Journal / Revista de Gestão Social e Ambiental; 2023, Vol. 17 Issue 10, p1-13, 13p