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.…
Autor*innen: | René Eisermann, Philipp Rohwetter, Konstantin HickeORCiD |
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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 |