A New Class of Sensing Products for DAS – AcoustiSens® Wideband Vibration Sensor Fibers and Cables – Improved OSNR for Great ASNR


AcoustiSens Fibers

AcoustiSens Cable

Coating Removal Tooling and Procedure

Joint Technology Briefing: NBG SonoSens and OFS AcoustiSens®

AcoustiSens Wideband Single-Mode Optical Fibers, are vibration sensing fibers and cables with optimal performance for Distributed Acoustic Sensing (DAS) systems. Using a waveguide design based on the ITU-T G.657.A1 telecom-grade single-mode standard, AcoustiSens Wideband Optical Fibers significantly increase Rayleigh backscatter while maintaining low attenuation to improve Optical Signal to Noise Ratio (OSNR). Furthermore, the AcoustiSens Wideband products provide bend-insensitivity and expand the operating bandwidth ensuring interoperability with all known DAS interrogators. AcoustiSens Wideband fibers are intended for use in cables designed as sensing components in DAS systems. Without the need for changes in interrogation equipment or complex optical amplification schemes AcoustiSens Wideband products are drop-in replacements that provide greatly improved sensing performance with OSNR orders of magnitude better than telecom-grade fibers. This translates into significantly improved ASNR in DAS systems. Due to its waveguide design, AcoustiSens products are also bend-insensitive and splice compatible with G.657.A1 and G.652.D optical fibers, assuring smooth integration with commonly deployed sensing solutions.

Typical Examples

OFS AcoustiSens Optical Fibers are intended for use as components in optical and hybrid cables OFS AcoustiSens Products are intended for use as components in optical and hybrid cables designed for vibration or acoustic sensing applications such as:

  • Pipeline monitoring (midstream)
  • Rail monitoring
  • Perimeter monitoring
  • Submerged monitoring
  • Highway monitoring
  • Smart City applications

See How It Works


AcoustiSens Optical Sensor Fiber Specifications

Enhancement10-15 dB (over naturally occurring Rayleigh backscatter in telecom-grade fibers)
Base Fiber TypeBased on G.657.A1 waveguide
Fiber Attenuation
@ 1550 nm
< 0.7 dB/km
Glass Outer Diameter125 µm
Coating Outer Diameter200 µm
Operating Temperature-40 to +85 °C
Min. Bend Radius Long Term Short Term17 mm 10 mm
Proof Test≥ 100 kpsi

OFS is a proud, charter member of the Fiber Optic Sensing Association (FOSA).

See all our fiber optic sensing solutions.

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