Fibercore > High Germania Specialty Singlemode Optical Fibers

High Germania Specialty Singlemode Optical Fibers

Intrinsically Photosensitive for Grating Fabrication

Beyond the 'Telecoms Revolution', Fiber Bragg Gratings (FBGs) are a key enabling technology for distributed strain and temperature sensors. These sensor systems are typically used for structural health monitoring of building, bridges, wind turbine blades, sub-sea umbilical cords, downhole applications and unstable hillsides.

These high germania singlemode fibers give a significantly higher photosensitivity than standard singlemode fibers without the high attenuation of a boron-germania co-doped fiber, allowing long arrays to be written with or without hydrogen loading.

The introduction of polyimide-coated versions of these fibers provide the added benefit of fibers able to withstand short-term temperatures as high as 400°C (or 300°C continuous), enabling their use in oil and gas exploration and other industries working in similarly highly challenging environments

Download the full datasheet here.

Specifications

SM1500(4.2/125)

SM1500(4.2/80)

SM1500(4.2/50)

SM1500
(4.2/125)P

SM1500
(4.2/50)P

Design Wavelength¹ (nm)

1550 nm

Cut-off Wavelength (nm)

1350 - 1500

Numerical Aperture

0.29 – 0.31

Mode Field Diameter²(µm)

4.2

Attenuation³(dB/km)

≤ 3

≤ 2

≤ 3

Proof Test (%)

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

1 (100 kpsi)

Fiber Diameter (µm)

125 ± 1

80 ± 1

50 ± 1

125 ± 1

50 ± 1

Core Cladding Concentricity (µm)

≤ 0.50

Coating Diameter (µm)

245 ± 5%

170 ± 5%

110 ± 5%

145 ± 3%

60 ± 1%

Coating Type

Dual Acrylate

Single Acrylate

Polyimide Coating

Maximum Temperature (°C)

85

300 long term /
400 short term

The Design Wavelength is the wavelength (or wavelengths) at which the fiber is typically used. In practice, the fiber will transmit the singlemode at wavelengths of up to approximately 200 nm longer than the cut-off wavelength.
The Mode Field Diameter is a nominal calculated value, estimated at the operating wavelength(s) using typical values for numerical aperture and cut-off wavelength.
Attenuation is a worst-case value, quoted for the shortest design wavelength.

Need Something Else?

PS Fiber
Polyimide-coated Singlemode Fiber
Polyimide-coated HB PM Fiber

>> Back

High Germania Specialty Singlemode Optical Fibers

Specifications

Need Something Else?

Product Categories

Need Technical Support?

High Germania Specialty Singlemode Optical Fibers

Specifications

Need Something Else?

Product Categories

Need Technical Support?

var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));