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Photosensitive Fiber

 

Highly Germanium Doped Fiber

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  • Specification
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Highly Germanium Doped Fiber image

Intrinsically photosensitive fiber for grating fabrication in distributed strain and temperature sensors

  • More than 5X Germania level of standard telecommunications fibers
  • Suitable for inscription of long arrays with or without hydrogen loading
  • High temperature polyimide coating variants available for harsh environment applications (see Polyimide Coated SM Fiber)

High temperature polyimide coating variantsavailable for harsh environment applications(see page 33 - Polyimide Coated SM Fiber)

Typical Applications

  • Temperature sensors
  • Strain sensors
  • Biomedical sensors
  • Hydrophones
  • Geophones
  • Fiber Bragg Gratings (FBGs)

Product Variants

SM1500(4.2/50)

Reduced cladding highly photosensitive fiber for FBGs in embedded sensors and very tightly coiled applications

SM1500(4.2/80)

Reduced cladding highly photosensitive fiber for FBGs in embedded sensors and coiled applications

SM1500(4.2/125)

Highly photosensitive and bend insensitive fiber for FBGs around 1550nm

Product Variants

SM1500(4.2/50)

Reduced cladding highly photosensitive fiber for FBGs in embedded sensors and very tightly coiled applications

 

SM1500(4.2/50)

Operating Wavelength (nm)

1520 - 1650

Cut-Off Wavelength (nm)

1350 - 1520

Numerical Aperture

0.29 - 0.31

Mode Field Diameter (μm)

4.0 - 4.5 @1550nm

Attenuation (dB/km)

≤2.0 @1550nm

Proof Test (%)

1, 2 or 3 (100, 200 or 300 kpsi)

Cladding Diameter (μm)

50 ± 1

Core Cladding Concentricity (μm)

≤0.5

Coating Diameter (μm)

110 ± 5

Coating Type

Single Acrylate

Operating Temperature (oC)

-55 to +85

SM1500(4.2/80)

SM1500(4.2/125)

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