Abstract
Distributed fiber-optic sensing based on Brillouin scattering has been extensively studied and many configurations have been developed so far. In this paper, we review the recent advances in Brillouin optical correlation-domain reflectometry (BOCDR), which is known as a unique technique with intrinsic single-end accessibility, high spatial resolution, and cost efficiency. We briefly discuss the advantages and disadvantages of BOCDR over other Brillouin-based distributed sensing techniques, and present the fundamental principle and properties of BOCDR with some special schemes for enhancing the performance. We also describe the recent development of a high-speed configuration of BOCDR (slope-assisted BOCDR), which offers a beyond-nominal-resolution detectability. The paper is summarized with some future prospects.
| Original language | English |
|---|---|
| Article number | 1845 |
| Journal | Applied Sciences (Switzerland) |
| Volume | 8 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2018 Oct 8 |
| Externally published | Yes |
Keywords
- Brillouin scattering
- Distributed sensing
- Nonlinear optics
- Optical correlation-domain reflectometry
- Optical fiber sensing
- Strain sensing
- Structural healthmonitoring
- Temperature sensing
ASJC Scopus subject areas
- Materials Science(all)
- Instrumentation
- Engineering(all)
- Process Chemistry and Technology
- Computer Science Applications
- Fluid Flow and Transfer Processes