SMF [LBRF]

Mercury’s LBRF is designed to provide improved performance across the full wavelength region form 1265 to 1625nm and it has low sensitivity to macro bending results in lower attenuation levels in the 1625 nm wavelength region.
Mercury’s LBRF fully meets ITU-T G.652D & G.657 and is available for use in loose tube cable, ribbon and other cable designs. Especially, the Low bending radius performance is useful for FTTH application.

  • Low 1383nm attenuation for full utilization from 1265 to 1625nm
  • Fully compliant with (ITU-T G.652.D & G.657)
  • Small allowable bending diameter
  • Mechanically strippable coating for easy field application.
  • Compatible with any commercial optical devices.
  • All type of optical cables with different structures.
  • High speed routes for FTTH networks.
  • Cable with extreme low bending requirement.
  • Small sized cable & optical component
  • High performance at all optical operating windows
Items Specifications
Attenuation @1310nm ≤ 0.35 dB/km
@1383nm ≤ 0.31 dB/km*
@1550nm ≤ 0.22 dB/km
@1625nm ≤ 0.23 dB/km
Dispersion @1285nm~1330nm ≤ 3.2 ps/nm.km
@1550nm ≤ 18 ps/nm.km
PMD Individual Fiber ≤ 0.20 ps/√km
Link Value ≤ 0.10 ps/√km
Typical Link Value     0.04 ps/√km
Zero Dispersion Wavelength      1300~1324nm
Zero Dispersion Slope ≤ 0.092 ps/nm².km
Cutoff Wavelength Fiber      1150~1350nm
Cable ≤ 1260nm

*After hydrogen aging test based on IEC 60793-2-50

Items Specifications
Mode Field Diameter @1310nm 8.6±0.5㎛
Cladding Diameter 125±0.9㎛
Cladding Non-Circularity ≤ 0.7%
Core/Clad Concentricity Error ≤ 0.5㎛
Coating Diameter 245±10㎛
Items G.657A2 G.657B3
Proof Test Level ≥ 100 kpsi (0.7GN/m2)
Coating Strip Force 1.3 ~8.9N (Nom. 3N)
R15 / 10turns @1550nm ≤ 0.03 dB ≤ 0.01 dB
@1625nm ≤ 0.10 dB ≤ 0.02 dB
R10 / 1turn @1550nm ≤ 0.10 dB ≤ 0.03 dB
@1625nm ≤ 0.20 dB ≤ 0.06 dB
R7.5 / 1turn @1550nm ≤ 0.20 dB ≤ 0.07 dB
@1625nm ≤ 0.50 dB ≤ 0.15 dB
R5.0 / 1turn @1550nm ≤ 0.10 dB
@1625nm ≤ 0.25 dB
Test Method Test Condition 1310nm 1550nm
Temperature Dependence -60℃~+85℃ ≤ 0.05 dB/km ≤ 0.05 dB/km
Temperature Humidity Cycling -10℃~+85℃ / RH 95% ≤ 0.05 dB/km ≤ 0.05 dB/km