NDLI: Low-cost Brillouin optical correlation-domain reflectometry involving merely one fibre amplifier

Content Provider	IET Digital Library
Author	Mizuno, Y. Han, G. Noda, K. Lee, H. K. Nakamura, K.
Abstract	Brillouin optical correlation-domain reflectometry (BOCDR) is one of the fibre-optic distributed strain and temperature sensing systems. Conventionally, BOCDR has been implemented using three erbium-doped fibre amplifiers (EDFAs) to enhance the signal-to-noise ratio (SNR) of the measurement. However, the use of multiple EDFAs has restricted the size and cost efficiency of the system. In this work, the authors show that, among the three EDFAs previously employed, the one in the Stokes path plays the most important role in enhancing the SNR. Subsequently, they implement BOCDR using only one EDFA and demonstrate distributed strain sensing. The measurement error is also investigated as a function of the output power of a light source.
Starting Page	754
Ending Page	756
Page Count	3
ISSN	00135194
Volume Number	55
e-ISSN	1350911X
Issue Number	Issue 13, Jun (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/55/13
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2019.0572
Journal	Electronics Letters
Publisher Date	2019-05-21
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	BOCDR Brillouin Spectra Distributed Sensor Erbium Erbium-doped Fibre Amplifiers Fibre Gyros Fibre Optic Sonsor Fibre-optic Distributed Strain Sensing System Light Source Output Power Low-cost Brillouin Optical Correlation-domain Reflectometry Measurement by Laser Beam Measurement Error Measurement of Mechanical Variables Mechanical Variables Measurement Metrological Application of Lasers Multiple EDFAs Optical Correlation Optical Fibre Amplifiers Optical Refractometry And Reflectometry Optical Variables Measurement Reflectometry Signal to Noise Ratio SNR Stokes Path Strain Measurement Strain Sonsor Temperature Sensing System Temperature Sonsor Thermal Variables Measurement Thermometry
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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