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Product Code: Radiation Resistant Fibre

Radiation Resistant Fibre

Radiation resistant single-mode and multi mode optical fibers have been developed. In general, attenuation of silica-based optical fiber increases in high radiation environments. However new radiation resistant optical fibers have radiation resistant and attenuation recovery characteristics, which are far superior to conventional pure silica core fiber.

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Table 1 Radiation resistant single-mode fibre

Model name unit RRSMFA RRSMFB RRSMFC
Operating wavelength μm 1.3 1.3 0.85
Attenuation (@850nm) dB/km - - <=15
Attenuation (@1310nm) dB/km <=0.4 <=0.5 -
Attenuation (@1550nm) dB/km <=0.3 <=0.5 -
Cutoff wavelength nm <=1260 <=800
Polarization mode dispersion ps/km1/2 <=0.5 -
Minimum zero dispersion
wavelength
nm 1290 -
Maximum zero dispersion
wavelength
nm 1324 -
Zero dispersion slope ps/nm2/km <=0.093 -
Mode field diameter (@850nm) μm - - 6.8 +/- 1.0
Mode field diameter (@1310nm) μm 9.1 +/- 0.7 8.6 +/- 0.7 -
Cladding diameter μm 125 +/- 1
Cladding non circularity % <=1.0
Core / cladding concentric
error
μm <=0.8
Coating diameter μm 245 +/- 5

 

Table 2 Radiation resistant multi mode fiber

Model name                             unit            RRMMA
Operating wavelength μm 0.85
Attenuation (@850nm) dB/km <=20
Numerical Aperture - 0.2 +/-0.02
Bending loss* (@850nm) dB/turn <=0.25
Core diameter μm 50 +/- 3
Cladding diameter μm 125 +/- 3
Coating diameter μm 245 +/- 15

* 1 turn around 40mm

  • Good initial transmission characteristics

  • Excellent environmental resistance of optical performance

  • Excellent stability