OFS, a leading designer, manufacturer, and supplier of innovative fiber-optic products, recently introduced its AcoustiSens Wideband single-mode vibration sensor fiber. The fiber is designed to enhance distributed acoustic sensing (DAS) systems.
Improving on recent AcoustiSens products, Wideband is based on the ITU-T G.657.A1 waveguide for enhanced bend insensitivity and includes an expanded operating band to ensure interoperability with all known DAS interrogators. AcoustiSens optical fiber, when coupled via sensing cables to commercially available DAS systems, enables significant improvements in acoustic signal-to-noise ratio (ASNR) through dramatic gains in the optical signal-to-noise ratio (OSNR) of the fiber. Splice-compatible with ITU-T G.657 and G.652.D telecom-standard fibers, AcoustiSens Wideband fibers simplify sensor fiber selection while improving system performance.
“Adding to the original AcoustiSens advantages of enhanced Rayleigh backscatter with low loss, we now include improved bend-insensitivity and a much wider operating band,” said Mike Hines, market manager for OFS. “AcoustiSens helps by meeting the challenge of greatly increasing Rayleigh backscatter while maintaining low attenuation, thereby improving OSNR within the fiber. This translates to dramatic improvements in DAS ASNR at the systems level.”
“The OFS specialty team is uniquely positioned to support development of next generation DAS systems with AcoustiSens as an enabling component,” said Adam Hokansson, OFS fiber value stream manager. “By adding improved bend insensitivity, design and manufacturing of DAS sensing cables is simplified. Furthermore, by expanding to an operating band of 1,536-1,556 nm, AcoustiSens Wideband is now compatible with all known DAS interrogators.”
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