Optimized for lowest total systems cost of EDFA-amplified networks in metro, regional, and long haul applications


OFS' TrueWave® RS Low Water Peak (LWP) Fiber is a Nonzero Dispersion Fiber (NZDF) that provides exceptional performance for Dense Wavelength Division Multiplexing (DWDM) used in metropolitan, regional, and long haul optical transmission systems.

Product Description

TrueWave® RS LWP Fiber offers low dispersion slope and low dispersion values that accommodate today's lower channel counts as well as tomorrow's full band capabilities. It is an excellent choice for networks that traditionally operate in the C-band (1530 nm - 1565 nm), as well as in emerging L-band (1565 nm - 1625 nm) systems, and also provides transmission capability at 1310 nm.

Compared to standard single-mode and other G.655 fibers, TrueWave® RS LWP Fiber offers:
  • Low dispersion values and dispersion slope
  • Easy, less expensive dispersion compensation
  • Low Polarization Mode Dispersion (PMD)
  • Low attenuation at the water peak
  • Compliance with ITU-T G.655.C and D standards
  • Eliminates dispersion compensation costs for metro networks, providing lowest first channel costs @ 10 Gb/s
  • Enables use of DWDM, CWDM, or a combination of the two
  • Lowers dispersion compensation and amplifier costs for EDFA-amplified long haul networks
  • Offers the lowest dispersion slope over both C-band and L-band wavelength windows to provide similar cost savings over entire C- and L- band channels
  • Provides lowest residual dispersion, an important requirement for fiber in next-generation applications such as OXC-based optical networks
Unit of Measure


Performance Characteristic

N/A G.655.C G.655.D

Single-Mode or Multimode

N/A Single-Mode


N/A Long Haul Metro Express Regional

Physical Characteristics

Clad Diameter

N/A 125.0 ± 0.7 µm

Clad Non-Circularity

N/A ≤ 0.7 %

Core/Clad Concentricity Error (Offset)

N/A ≤ 0.5 µm, ≤ 0.2 µm typically

Coating Diameter (Uncolored)

N/A 237 - 247 µm

Coating-Clad Concentricity Error (Offset)

N/A ≤ 12 µm

Coating Strip Force

N/A Range: 1.0 N ≤ CSF ≤ 8.9 N

Standard Reel Lengths

N/A Standard as well as customer specific lengths are available up to 50.4 km km

Optical Characteristics


Attenuation Maximum Typical
      at 1310 nm≤ 0.4 dB/km≤ 0.35 dB/km
      at 1383 nm≤ 0.4 dB/km≤ 0.35 dB/km
      at 1550 nm≤ 0.22 dB/km≤ 0.20 dB/km
      at 1625 nm≤ 0.24 dB/km≤ 0.21 dB/km

Macrobend Attenuation

Deployment Condition Wavelength Induced Attenuation
1 turn, 32 mm (1.2 inch) diameter1550 nm≤ 0.5 dB
1625 nm≤ 0.5 dB
100 turns, 60 mm (2.4 inch) diameter1550 nm≤ 0.05 dB
1625 nm≤ 0.05 dB

Fiber Polarization Mode Dispersion (PMD) Link Design Value (LDV)

N/A ≤ 0.04 ps/√km

Maximum Individual Fiber - Polarization Mode Dispersion (PMD)

N/A ≤ 0.1 ps/√km

Typical Fiber LMC Polarization Mode Dispersion (PMD)

N/A ≤ 0.02 ps/√km

Environmental Characteristics (At 1310, 1550 & 1625 nm)

Temperature Cycling (-60 to +85 ºC)

N/A ≤ 0.05 dB/km

High Temperature Aging (85 + 2 ºC)

N/A ≤ 0.05 dB/km

Temperature & Humidity Cycling (At -10 to +85 to ~ 98% RH)

N/A ≤ 0.05 dB/km

Water Immersion (23 + 2 ºC)

N/A ≤ 0.05 dB/km

How To Order:

Order From Location

N/A 1 Brightwave Blvd.Carrollton, GA 30117, USA 1-770-798-5555 from outside the USA 1-888-fiberhelp (1-888-342-3743) from inside the USA CARROLLTON LOCATION