Datasheet

Components & Accessories

GR-50/125-20CMTA, Graded Index Specialty Multimode Optical Fiber

Product image of GR-50/125-20CMTA, Graded Index Specialty Multimode Optical Fiber

Coherent NuSENSOR graded-index multimode fiber is ideally suited for Raman based distributed temperature sensing. This 0.20 NA fiber features a 50µm core diameter and a 125µm clad diameter with a mid-temperature acrylate coating and is also available with a hermetic carbon coating layer. NuSENSOR multimode fiber is manufactured in-house, and every process step is monitored and controlled providing high bandwidth and low attenuation. As with all Coherent fibers, this multimode fiber provides tight tolerance optical and geometrical specifications measured at the application critical wavelengths. The mid-temperature acrylate coating operates up to 150°C and, with the hermetic carbon coating, is ideal for use in H2 rich environments.
This product requires a purchase of a minimum quantity of : 334

Parameter Products
GR-50/125-20CMTA GR-50/125-20MTA
Optical Specifications
Operating Wavelength 850 - 1300 nm
Core NA 0.2
Bandwidth ≥ 400 MHz-km @ 850 nm
≥ 400 MHz-km @ 1300 nm
Core Attentuation At ≤ 0.70 dB/km @ 1300 nm
≤ 1.50 dB/km @ 1060 nm
≤ 2.50 dB/km @ 850 nm
Geometrical & Mechanical Specifications
Cladding Diameter 125.0 ± 1.0 μm
Core Diameter 50.0 ± 2.5 μm
Coating Diameter 245.0 ± 5.0 μm
Coating Concentricity < 5.0 μm
Core/Clad Offset ≤ 1.50 μm
Core Non-Circularity ≤ 5 %
Clad Non-Circularity ≤ 1.0 %
Core Index Profile Graded Index
Coating Material Mid Temperature Acrylate
Operating Temperature Range -40 to 150 °C
Prooftest Level ≥ 100 kpsi (0.7 GN/m²