Zobrazeno 1 - 10
of 587
pro vyhledávání: '"P. Eiselt"'
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
Autor:
Alexander Winterl, Sebastian Richter, Aymeric Houstin, Téo Barracho, Matthieu Boureau, Clément Cornec, Douglas Couet, Robin Cristofari, Claire Eiselt, Ben Fabry, Adélie Krellenstein, Christoph Mark, Astrid Mainka, Delphine Ménard, Jennifer Morinay, Susie Pottier, Elodie Schloesing, Céline Le Bohec, Daniel P. Zitterbart
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-16 (2024)
Abstract Emperor penguins (Aptenodytes forsteri) are under increasing environmental pressure. Monitoring colony size and population trends of this Antarctic seabird relies primarily on satellite imagery recorded near the end of the breeding season, w
Externí odkaz:
https://doaj.org/article/34e28efc21df460fbfd1556617ef9dae
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:
Eiselt, Michael H.
Publikováno v:
European Conference on Optical Communications, 2020
This paper reviews methods for autonomous tuning of optical transceivers, based on an overhead management channel between the modules on both sides of the link. Different implementation options for the tuning principle, as well as for the tunable las
Externí odkaz:
http://arxiv.org/abs/2203.10978
Publikováno v:
ITG Photonic Networks 2018
The temperature dependence of the latency of an optical signal transmitted over an optical fiber was investigated by means of a correlation OTDR. While the bare fiber showed a linear latency increase over temperature, the jumper cable inside a jacket
Externí odkaz:
http://arxiv.org/abs/2204.05772
Autor:
Azendorf, Florian, Schmauss, Bernhard, Shi, Bo, Fokoua, Eric Numkam, Slavík, Radan, Eiselt, Michael
Publikováno v:
Optical Fiber Communications Conference and Exhibition (OFC) 2021
Using a Correlation-OTDR, we characterized the temperature-induced group delay variations of two nested antiresonant nodeless hollow core fibers. The temperature sensitivity of both is substantially less than for SSMF with some dependency on coating
Externí odkaz:
http://arxiv.org/abs/2204.06093