"Optimized for Terrestrial Long Haul"


TeraWave® ULL single-mode optical fiber is a 125 μm2 large area, ultra low loss ITU-T G.654.B fiber designed for terrestrial optical networks. The fiber is optimized for long haul transmission in the C- and L-bands (1530 nm – 1625 nm) at 100 Gb/s, 400 Gb/s and beyond. It features a core with an effective area 50% greater than G.652.D single-mode fiber to reduce nonlinear effects that limit the reach of G.652.D fiber. As a result, TeraWave® ULL fiber supports greater distances between regeneration and amplification sites, helping to lower the overall cost of deploying coherent systems – now and in the future.

Product Description

TeraWave® ULL fiber features very good cabling properties, and an ultra low loss to provide superior optical signal-to-noise ratio (OSNR) performance in optical links compared to low loss G.652.D fibers. The fiber takes the best aspects of highly engineered submarine fibers and combines them with cabling performance that is similar to conventional single-mode terrestrial fiber. These improvements allow system designers to increase distances between amplifi cation and regeneration sites to help reduce overall system costs..

  • Effective area of 125 μm2
  • Loss ≤0.17 dB/km at 1550 nm
  • Long term attenuation and mechanical reliability
  • Ultra low PMD
  • Low latency
  • Improved OSNR TeraWave ULL Single-mode Optical Fiber Optimized for Terrestrial Long Haul
  • Supports coherent and non-coherent transmission systems
  • Optimized for 400 Gb/s and 1 Tb/s systems
  • Designed for terrestrial cables
  • High performance D-Lux® Ultra Coating


TeraWave® ULL Fiber provides outstanding cable performance and design freedom for terrestrial long haul systems:

  • 100 Gb/s, 400 Gb/s, and 1 Tb/s using coherent modulation formats
  • Ultra-long haul 10 Gb/s and 100 Gb/s
  • Terabit super-channels
  • Dense wave-division multiplexing
  • Optically-routed mesh networks
  • Long unrepeatered spans such as those encountered in remote regions
Unit of Measure


Performance Characteristic

N/A G.654.B

Single-Mode or Multimode

N/A Single-Mode


N/A • 100 Gb/s, 400 Gb/s, and 1 Tb/s using coherent modulation formats • Dense wave-division multiplexing • Long unrepeatered spans such as those encountered in remote regions • Optically-routed mesh networks • Terabit super-channels • Ultra-long haul 10 Gb/s and 100 Gb/s

Bend Performance

N/A Optimized Effective Area Ultra Low Loss

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 ≤ 0.8 µm

Coating Diameter (Uncolored)

N/A 240 µm - 250 µm

Coating-Clad Concentricity Error (Offset)

N/A ≤ 12 µm

Tensile Proof Test

N/A 100 kpsi0.69 GPa

Standard Reel Lengths

N/A Up to 50.4 km (31.3 miles) km

Optical Characteristics


Attenuation Maxmum
     at 1385 nm≤ 0.35 dB/km 
     at 1550 nm≤ 0.17 dB/km 
     at 1625 nm≤ 0.21 dB/km 

Attenuation Uniformity/Point Discontinuities at 1310 and 1550 nm

N/A ≤ 0.05 dB

Attenuation vs. Wavelength

Range (nm) Reference (nm) λ α
     1525 – 157515500.03
     1475 – 1625 15500.05

Macrobend Attenuation

N/A Complies to G.654.B

Group Refractive Index at 1550 nm

N/A 1.465

Cable Cutoff Wavelength (λCC)

N/A ≤ 1520 nm

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