Stock Code: 601869.SH / 06869.HK

Acoustic Sensing Enhanced Fibre

YOSC-FsWFBG-N is based on the self-developed femtosecond laser automatic micromachining system to prepare a weak grating array, which is written on a fibre with thousands of weak reflectivity gratings. Using femtosecond laser direct writing technology, the center wavelength, reflectivity and other parameters can be customized according to customer needs. Combined with special coated optical fibres, it can be stably used in extremely harsh environments.
Applications
  • Oil and gas exploration and dynamic monitoring of oil and gas storage
  • Safety monitoring of structures such as tunnels, bridges, and fans
  • Leakage monitoring of long-distance oil and gas pipelines
Characteristics
  • High reliability, high sensitivity, high resolution
  • Written directly through the coating with high mechanical strength
  • Strong reuse capability, quasi distributed/distributed compatibility
  • High temperature resistance, radiation resistance, and electromagnetic interference resistance

Specifications

Items

YOSC-FsWFBG-N

Central wavelength (nm)

1500-1600

Grating type

Apodization or equation

Wavelength tolerance (nm)

±0.3

Grating length(mm)

6(customizable)

Reflectivity (%)

<0.1%

3dB bandwidth(nm)

>0.2(customizable)

Tensile strength(Kpsi)

≥200(PI)

Fibre type

Acrylate/Polyimide

Working temperature(℃)

Acrylate:-40 to 85; PI:-200 to 350

Grating interval(m)

Customizable

Number of gratings(/km)

Customizable

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