Overcoming EDFA slow transient effects in a combined Golay coding and coherent detection BOTDA sensor Article Swipe
Can Liu
,
Lianshan Yan
,
Zonglei Li
,
Yin Zhou
,
Xinpu Zhang
,
Wei Pan
,
Bin Luo
·
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.1364/oe.382276
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.1364/oe.382276
Firstly, Erbium-doped fiber amplifier (EDFA) served as pre-amplifier may distort Brillouin gain spectrum (BGS) in coded Brillouin optical time domain analysis sensor. Here, we found that the EDFA has negligible impact on the shape of Brillouin phase spectrum (BPS). Experimental results show that a ∼5.4 MHz Brillouin frequency shift error caused by EDFA has been avoided by using BPS instead of BGS. Secondly, after eliminating phase fluctuation caused by optical fiber, the combination of Golay coding and coherent detection has been realized.
Related Topics To Compare & Contrast
Concepts
Brillouin zone
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Brillouin scattering
Amplifier
Optical fiber
Binary Golay code
Fiber optic sensor
Erbium
Time domain
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Materials science
Physics
Optoelectronics
Laser
Computer science
Algorithm
CMOS
Computer vision
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1364/oe.382276
- OA Status
- gold
- Cited By
- 6
- References
- 22
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2996470567
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