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Reducing sensitivity fading in C-OTDR by use of enhanced scattering fiber segments

  • We have shown that for C-ODTR based DAS two UV-inscribed scattering segments within an optical fiber have a significant influence on the local sensitivity Fading characteristics. This method was experimental proven to be suitable for distributed dynamic strain measurement in a thermally unstable environment. Signal-to-noise ratio analyses for detecting a signal peak within the time-dependent spectra were performed. Results show an increase in SNR and additionally that the occurrence of total loss of sensitivity (SNR <1) could be decreased by a factor of six when compared to an untreated standard fiber. We have shown that for C-ODTR based DAS two UV-inscribed scattering segments within an optical fiber have a significant influence on the local sensitivity Fading characteristics. This method was experimental proven to be suitable for distributed dynamic strain measurement in a thermally unstable environment. Signal-to-noise ratio analyses for detecting a signal peak within theWe have shown that for C-ODTR based DAS two UV-inscribed scattering segments within an optical fiber have a significant influence on the local sensitivity Fading characteristics. This method was experimental proven to be suitable for distributed dynamic strain measurement in a thermally unstable environment. Signal-to-noise ratio analyses for detecting a signal peak within the time-dependent spectra were performed. Results show an increase in SNR and additionally that the occurrence of total loss of sensitivity (SNR <1) could be decreased by a factor of six when compared to an untreated standard fiber. We have shown that for C-ODTR based DAS two UV-inscribed scattering segments within an optical fiber have a significant influence on the local sensitivity Fading characteristics. This method was experimental proven to be suitable for distributed dynamic strain measurement in a thermally unstable environment. Signal-to-noise ratio analyses for detecting a signal peak within the time-dependent spectra were performed. Results show an increase in SNR and additionally that the occurrence of total loss of sensitivity (SNR <1) could be decreased by a factor of six when compared to an untreated standard fiber.zeige mehrzeige weniger

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Metadaten
Autor*innen:René Eisermann, Philipp Rohwetter, Konstantin HickeORCiD
Persönliche Herausgeber*innen:Youngjoo Chung, Wei Jin, Byoungho Lee, John Canning, Kentaro Nakamura, Libo Yuan
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Proceedings SPIE: 25th International Conference on Optical Fiber Sensors
Jahr der Erstveröffentlichung:2017
Herausgeber (Institution):Society of Photo-Optical Instrumentation Engineers (SPIE)
Verlag:SPIE
Verlagsort:Bellingham, WA, USA
Jahrgang/Band:10323
Erste Seite:103239N-1
Letzte Seite:103239N-4
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten
Freie Schlagwörter:Coherent Rayleigh OTDR,; Distributed acoustic sensing; Distributed vibration sensing; Fiber sensors; Quasi-distributed sensing; Rayleigh scattering
Veranstaltung:25th International Conference on Fiber Optic Sensors
Veranstaltungsort:Jeju-City, Jeju, Republic of Korea
Beginndatum der Veranstaltung:24.04.2017
Enddatum der Veranstaltung:28.04.2017
DOI:10.1117/12.2267659
ISSN:0277-786X
ISSN:1996-756X
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:19.06.2017
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:24.11.2017
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