Greater Channel Capacity, Increased Transmission Speed


OFS' TrueWave® Submarine Reduced Slope (SRS) Fiber is specifically designed for maximum performance in undersea networks. TrueWave® SRS Fiber is the first reduced dispersion slope fiber of its kind in the industry, enabling network providers to dramatically increase the channel capacity and transmission speed of submarine networks. More channels at higher speeds over longer distances are possible with TrueWave® SRS Fiber because its reduced dispersion slope permits more uniform dispersion compensation across the entire EDFA spectrum.

Product Description

TrueWave® SRS Fiber is designed for use in submarine cables engineered specifically for regional ocean repeatered systems. Applications without repeaters, such as coastal festoons and deep-water crossings, can also take advantage of the fiber's high bandwidth capacity. For longer regional and trans-oceanic applications, TrueWave® SRS Fiber can be combined in spans with the large effective area TrueWave® XL Fibers and the positive dispersion of AllWave® Single-mode Ocean Fibers for optimal system performance.

  • Low dispersion slope increases system bandwidth by enabling more channels with higher transmission speeds over longer distances
  • Low loss, non-zero, chromatic dispersion suppresses four wave mixing
  • Efficient operating window increases distances and achieves high speeds while optimizing amplifier performance
  • Proof tested to 200 kpsi to help ensure long term reliability under extreme conditions
  • D-Lux® Coating helps ensure world class environmental performance and long-term reliability
  • Engineered sets provide the cable manufacturer maximum efficiency
Unit of Measure


Single-Mode or Multimode

N/A Single-Mode


N/A Ocean

Transmission Characteristics

Attenuation @ 1550 nm (nominal)

N/A 0.20 dB/km

Attenuation @ 1550 nm (max)

N/A < 0.215 dB/km

Dispersion Slope @1550 nm (nominal)

N/A < 0.045 ps/(nm²·km)

Dispersion @1550 nm (nominal)

N/A -2.8 ps/(nm·km)
Mode Field Diameter at 15501 N/A 8.4 ± 0.6 mm

Effective Area (nominal)

N/A 50 µm2

Cable Cutoff Wavelength

N/A < 1530 nm
PMD @ 1550 nm (nominal)2 N/A < 0.025 ps/√km

Effective Group Index of Refraction

N/A 1.470 at 1550 nm

Point Discontinuties at 1550 nm

N/A 0.05 dB

Geometrical Characteristics

Clad Diameter

N/A 125 ± 0.7 µm

Core/Clad Concentricity Error (max)

N/A 0.5 µm

Clad Non-circularity (max)

N/A 1.0 %

Coating Diameter, uncolored

N/A 235 to 250 µm

Coating/Clad Concentricity Error (nominal)

N/A 3 µm

Coating/Clad Concentricity Error (max)

N/A 12 µm

Coating Diameter (Colored)

N/A 254 ± 8 µm

Mechanical and Other

Tensile Proof Test (min)

N/A 200 kpsi1.4 GPa

Dynamic Fatigue Parameter (Nd)

N/A > 20

Static Fatigue Parameter (na)

N/A > 20

Coating Type

N/A D-Lux Series Coatings

Coating Strip Force (Mechanical)

N/A 1.3 N (0.3 lb-ft) min 8.9 N (2.0 lb-ft) max

Coating Adhesion

N/A 13 N (3.0 lb-ft) max 6.2 N (1.4 lb-ft) min


N/A Customer specified

Matching Sets

N/A Customer may order sets (groups) of fiber with matching length and mix

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
  • 1 Lower mode field diameters are available to accommodate specific cable design requirements
  • 2 Low Mode Coupling (LMC) measurements