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62.5 µm Graded-Index Multimode Optical Fiber

In data communications where high reliability, high data capacity, and ease of connectivity are required, Lightera multimode optical fibers have become the medium of choice. Among U.S. manufacturers, Lightera offers the widest range of graded-index multimode fibers as standard selections.

Consistent product quality, on-time delivery, responsive service, and excellent technical support are just a few of the reasons why Lightera is one of the world’s leading producers of optical fiber.

Lightera’ graded-index multimode fibers are 100% quality tested in accordance with the Telecommunications Industry Association (TIA) Fiber Optic Test Procedures (FOTP) and other industry standards.

In addition, Lightera optical fiber meets the optical and mechanical requirements of Telcordia Generic Requirements documents GR-20-CORE and GR-409-CORE.

Lightera’ graded-index multimode fibers are 100% quality tested in accordance with the Telecommunications Industry Association (TIA) Fiber Optic Test Procedures (FOTP) and other industry standards.

In addition, Lightera optical fiber meets the optical and mechanical requirements of Telcordia Generic Requirements documents GR-20-CORE and GR-409-CORE.

Product Description

Lightera’ graded-index multimode fibers are 100% quality tested in accordance with the Telecommunications Industry Association (TIA) Fiber Optic Test Procedures (FOTP) and other industry standards.

In addition, Lightera optical fiber meets the optical and mechanical requirements of Telcordia Generic Requirements documents GR-20-CORE and GR-409-CORE.

Manufacturing and Quality Control

Robust and easy to connectorize, our Graded-Index 62.5 µm Fiber promotes ease of installation even under the most stringent conditions.

Lightera protects the fibers with our D-LUX Shield Coating, a dual-layered acrylate coating system that provides the industry’s best protection against water, temperature and humidity extremes, yet still strips cleanly and easily.

Our multimode optical fiber is manufactured at Lightera’ Multimode Center of Excellence in Sturbridge, Massachusetts, using the company’s advanced Modified Chemical Vapor Deposition (MCVD) technology. Using this process, Lightera produces a range of multimode fiber products that offer excellent performance for all transmission protocols. The MCVD method enables Lightera to precisely control each fiber’s index of refraction. Under the restricted launch conditions used in Gigabit Ethernet, this maximizes fiber bandwidth performance at 1 Gb/s speeds.

Like all of Lightera’s graded-index multimode fibers, Lightera Graded-Index 62.5 µm Fiber is tested and proven to exceed the Telecommunications Industry Association (TIA) Fiber Optic Test Procedures (FOTP) and other industry standards.

D Lux Shield Coating

D-Lux® Shield Coating

Lightera multimode fibers are made with a world-class draw process and our enhanced D-Lux Shield coating, designed to minimize induced attenuation that can occur in tight-buffer cable. Easy to strip and install, the coating offers outstanding performance in attenuation-sensitive 1 Gb/s and 10 Gb/s systems.

Product Specifications

Product Specifications
Product Description	62.5 µm Graded-Index MM Fiber
Physical Characteristics	62.5/125
Core Diameter	62.5 ± 2.5 µm
Core Non-Circularity	≤ 5 %
Clad Diameter	125 ± 1 μm
Clad Non-Circularity	≤ 1 %
Core/Clad Concentricity Error (Offset)	≤ 1.0 μm
Coating Diameter	245 ± 10 μm
Coating Non-Circularity	≤ 5 %
Coating-Clad Concentricity Error (Offset)	≤ 12 μm
Tensile Proof Test	100 kpsi (0.69 GPa)
Coating Strip Force	Range: 0.22 – 2.0 lbf (1.0 – 8.9 N) Typical: 0.6 lbf (2.7 N)
Standard Reel Lengths	2.2 – 8.8 km
Optical Characteristics
Attenuation	≤ 2.9 dB/km @ 850 nm; ≤ 0.6 dB/km @ 1300 nm
Overfilled Bandwidth	≥ 200 MHz-km @ 850 nm; ≥ 500 MHz-km @ 1300 nm
Attenuation @ 1380 nm minus attenuation @ 1300nm	≤ 1.0 dB/km
Attenuation Uniformity / Point Discontinuities @ 850 nm and 1300 nm	≤ 0.08 dB
Numerical Aperture	0.275 ± 0.015
Chromatic Dispersion – Zero Dispersion Wavelength (λ0)	1320 – 1365 nm
Chromatic Dispersion – Zero Dispersion Slope (S0)	≤ 0.11 ps/nm²-km (1320 ≤ λ0 ≤ 1348 nm) ≤ 0.001 x (1458 – λ0 ) (1348 ≤ λ0 ≤ 1365 nm)
Group Refractive Index @ 850 nm	1.496 @ 850 nm; 1.491 @ 1300 nm
Backscatter Coefficient @ 850 nm	-68.4 dB @ 850 nm; -72.1 dB @ 1300 nm
Macrobend Attenuation (100 turns on a 75 mm mandrel) @ 850 nm and 1300 nm	≤ 0.5 dB
Environmental Characteristics
Operating Temperature Range	-60 °C to +85 °C
Temperature Induced Attenuation at 850 nm and 1300 nm from -60 °C to +85 °C (5 24-hour cycles)	≤ 0.1 dB/km
Temperature and Humidity Induced Attenuation at 850 nm and 1300 nm from -10 °C to +85 °C 94% RH, (30 24-hour cycles)	≤ 0.1 dB/km
Accelerated Aging (Temperature) Induced Attenuation at 85 °C for 30 days	≤ 0.1 dB/km
Water Immersion Induced Attenuation, 23 °C for 30 days	≤ 0.1 dB/km
Dynamic Fatigue Stress Corrosion Parameter (nd)	≥ 18

Contact Information

For additional information please contact your sales representative. You can also visit our website at www.lightera.com or call 1-888-FIBERHELP (1-888-342-3743) USA or 1-770-798-555 outside the USA. For a full list of our certifications, visit our website.

Trademark Notice and Disclaimer

Lightera reserves the right to make changes to the product(s) described in this document at any time without notice. This document is for informational purposes only and is not intended to modify or supplement any Lightera warranties or specifications relating to any of its products or services.

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fiber-149

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