Single-mode fibre, E9/125/250, OS2 / G.652.D BLO

low attenuation, bend loss optimized

in accordance with ITU-T G.652.D, compatible with ITU-T G.657.A1

1 Core
2 Cladding
3 Coating


Bend loss optimized (BLO) single-mode fibre with improved macrobending properties for the home connection and for the cabling in FTTH access networks (Fibre-to-the-home).
Full-spectrum single-mode fibre, suitable for the operating wavelengths in all FTTx networks.
Fully compatible with (and even exceeding) the standards ITU-T G.652.D and ITU-T G.657.A1.
Permitted bending radius: 15 mm up to 10 mm.
Home connection, FTTH access network, FTTx in-house cabling.
Transmission characteristics
Maximum attenuation
  * post hydrogen aging performance
Chromatic Dispersion
[ps/(nm x km)]3,5 1822
Zero Dispersion
Wavelength λ0
[nm]1304 ≤ λ0
≤ 1324
Maximum Zero
Dispersion Slope So
[ps/(nm2 x km)]0.091   
Mode-Field Diameter[μm]9.2+/-0.4  10.4+/-0.5 
Maximum Cable Cutoff 
Wavelength λcc
Polarisation Mode Dispersion     
PMD Link Design Value[ps/√km]≤ 0.04   
Max. individual fibre PMD[ps/√km]≤ 0.1   
Max. individual cable PMD[ps/√km]≤ 0.2   
Refractive index 1.4676 1.4682 
Geometrical and mechanical characteristics
Cladding diameter[μm]125 +/- 0.7
Maximum Core / Cladding Concentricity Error[μm]0.5
Maximum Cladding   Non-Circularity[%]0.7
Coating diameter[μm]242 +/- 5
Maximum Cladding/Coating Concentricity Error[μm]12
Operating temperature range[°C]-60 up to +85
Test load[kpsi]100


Macrobending characteristics
Number of windings and bend   radiusWavelengthMax. induced attenuation
1 turn x 10 mm1550 nm≤ 0.50 dB
1 turn x 10 mm1625 nm≤ 1.5 dB
10 turns x 15 mm1550 nm≤ 0.05 dB
10 turns x 15 mm1625 nm≤ 0.3 dB
100 turns x 30 mm1625 nm≤ 0.01 dB

Post hydrogen aging

IEC 60793-2-50-C.5

Fiber specifications

ITU-T G.652.D, ITU-T G.657.A1, IEC 60793-2-50 Category B-652.D, B-657.A1


Product Datasheet
Tender text


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