Product Code:

FutureGuide®-LWP-RA ITU-T G.652.D (+ Reduced Attenuation)

Fujikura's novel technology of attenuation reduction leads to the development of FutureGuide®-LWP-RA fiber. Attenuation characteristics are extremely lower than the specified values in ITU-T G.652.D. The breakthrough of optical attenuation (≤ 0.18dB/km at 1550nm) would contribute to higher system margin thereby enabling longer transmission distance with less numbers of amplifiers. FutureGuide®-LWP-RA allows the advanced modulation format systems such as DP-QPSK systems, and thus reduces the total network cost with flexible system design. FutureGuide®-LWP-RA is suitable from long-haul to access networks of 40Gbps, 100Gbps and beyond.

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  • Reduced attenuation with zero(low)-water peak (superior to conventional G.652.D fibers)
  • Full Compatibility with existing G.652 fibers


Parameters Unit FutureGuide®-LWP-RA
Mode Field Diameter at 1310nm µm 9.2±0.4
Attenuation at 1310nm dB/km ≤0.32
Attenuation at Water Peak (1383nm) after Hydrogen Aging dB/km ≤0.31
Attenuation at 1550nm dB/km ≤0.18
Attenuation at 1625nm dB/km ≤0.20
Cable Cut-off Wavelength nm ≤1260
Chromatic Dispersion (1285-1330nm) ps/(nm·km) ≤3.5
Chromatic Dispersion at 1550nm ps/(nm·km) ≤18
Zero Dispersion Slope ps/(nm2·km) ≤0.092
Zero Dispersion Wavelength nm 1300-1324
Polarization Mode Dispersion (Free Tension Condition) ps/√km ≤0.1
PMD Link Design Value ps/√km ≤0.04
Proof Level GPa ≥0.7

* All the data above are the characteristics of the optical fiber. Please contact us for the specification of optical cords and cables.