Brillouin Optical Correlation Domain Analysis Assisted by First-Order Distributed Raman Amplification

Gukbeen Ryu, Gyu Tae Kim, Kwang Yong Song, Sang Bae Lee, Kwanil Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We introduce the Raman amplification to increase the sensing range in the Brillouin optical correlation domain analysis (BOCDA). Compared to our previous report, the optimized Raman pumping scheme is numerically simulated and enhanced sensing length is experimentally demonstrated. The differential measurement method and time-domain data processing are further introduced in the backward distributed Raman pumped BOCDA system for the performance improvement. Strain changes of 1 mϵ over 7 cm have been measured at 52 km sensing fiber.

Original languageEnglish
Title of host publicationOptical Fiber Sensors, OFS 2020
PublisherOptica Publishing Group (formerly OSA)
ISBN (Electronic)9781557523075
Publication statusPublished - 2020
Event27th International Conference on Optical Fiber Sensors, OFS 2020 - Washington, United States
Duration: 2020 Jun 82020 Jun 12

Publication series

NameOptics InfoBase Conference Papers

Conference

Conference27th International Conference on Optical Fiber Sensors, OFS 2020
Country/TerritoryUnited States
CityWashington
Period20/6/820/6/12

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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