13 Specialty Optic Fiber © 2014, AFL, all rights reserved. PP-6-00004, Revision 3, 3.26.2020 Specifications are subject to change without notice. AFLglobal.com | 800.235.3423 VHM5000 Series Fibers Verrillon® Harsh Environment Fibers from AFL are available in a wealth of designs. The VHM5000 product is a multimode graded-index optical fiber with optimized glass chemistry for high resistance to hydrogen darkening. VHM5000 Series is available with coatings and coating combinations, including Polyimide, high temperature acrylates, Silicone-PFA and hermetic Carbon. Typically, these fibers are used in down-hole data logging, distributed sensing and imaging applications where the temperature and hydrogen partial pressures are extreme. Verrillon coated fibers provide exceptionally high levels of hermeticity compared to commercial fibers. We provide extensive data that demonstrates the performance of our fiber. In addition, we provide one-stop shopping for customers requiring multi-count cabled hermetic fibers, if required, in metal jacketing tubes. Consistent with our founding principles, we specialize in application-optimized fibers, providing our customers unmatched flexibility in their system design and performance. Specifications PART NO. MMF-50-4-P-125-4 Description 50/125/155 μm Polyimide coated, Graded Index, Multimode Fiber PARAMETER VALUE Material Coating Polyimide Geometry Core Diameter (μm) 50 ± 2.5 Clad Diameter (μm) 125 ± 2 Core Non-Circularity (%) < 5 Clad Non-Circularity (%) < 1 Core/Clad Offset (μm) < 1.5 Coating Diameter (μm) 155 ± 5 Polyimide Coating Concentricity 1 > 80 Optical NA (nominal) 0.20 Attenuation 2 @ 850 nm (dB/km) < 3.0 Attenuation 2 @ 1300 nm (dB/km) < 1.2 Bandwidth @ 850 nm (MHz-km) > 300 Bandwidth @ 1300 nm (MHz-km) > 300 Mechanical Proof Test (kpsi) ≥ 100 Operating Temperature (°C) -65 to +300 1 Measured as (Min. Wall/Max. Wall) x 100 2 Measured on loose coil Features • Best glass resistance to hydrogen at high temperatures and pressures in the entire industry • Wide range of protective coatings available, depending on application requirements • Suitable for use in high pressure, high temperature and corrosive environments • Carbon coating provides exceptional resistance to H 2 and moisture ingression • Predicted lifetime for hermetic fiber under typical operating conditions exceeds most requirements • Extensive test and measurement data for optical fiber performance under "harsh conditions" provided with fiber © 2014, AFL, all rights reserved. PP-6-00004, Revision 3, 3.26.2020 Specifications are subject to change without notice. AFLglobal.com | 800.235.3423 14 Specialty Optic Fiber VHM5000 Series Fibers Specifications PART NO. MMF-50-4-CP-125-2 MMF-50-4-CP-125-3 MMF-50-4-CP-125-4 Description 50/125/155 μm Carbon/Polyimide coated, Graded Index Multimode Fiber, 200 kpsi 50/125/155 μm Carbon/Polyimide Graded Index, Multimode Fiber, 150 kpsi 50/125/155 μm Carbon/Polyimide coated, Graded Index Multimode Fiber PARAMETER VALUE Material Hermetic Carbon Carbon Carbon Coating Polyimide Polyimide Polyimide Geometry Core Diameter (μm) 50 ± 2.5 50 ± 2.5 50 ± 2.5 Clad Diameter (μm) 125 ± 2 125 ± 2 125 ± 2 Core Non-Circularity (%) < 5 < 5 < 5 Clad Non-Circularity (%) < 1 < 1 < 1 Core/Clad Offset (μm) < 1.5 < 1.5 < 1.5 Coating Diameter (μm) 155 ± 5 155 ± 5 155 ± 5 Polyimide Coating Concentricity 1 > 80 > 80 > 80 Optical NA (nominal) 0.20 0.20 0.20 Attenuation 2 @ 850 nm (dB/km) < 3.0 < 3.0 < 3.0 Attenuation 2 @ 1300 nm (dB/km) < 1.2 < 1.2 < 1.2 Bandwidth @ 850 nm (MHz-km) > 300 > 300 > 300 Bandwidth @ 1300 nm (MHz-km) > 300 > 300 > 300 Mechanical Proof Test (kpsi) ≥ 200 ≥ 150 ≥ 100 Operating Temperature (°C) -65 to +300 -65 to +300 -65 to +300 1 Measured as (Min. Wall/Max. Wall) x 100 2 Measured on loose coil Specifications PART NO. MMF-50-4-CSPFA-125-1 MMF-50-4-CSPFA-125-5 MMF-50-4-CSPFA-125-6 MMF-50-4-CSPFA-125-7 Description 50/125/750 μm Carbon/Silicone/ PFA, Graded Index, Multimode Fiber, 150 kpsi 50/125/400 μm Carbon/ Silicone/ PFA coated, Graded Index, Multimode Fiber 50/125/250 μm Carbon/ Silicone/ PFA coated, Graded Index, Multimode Fiber 50/125/250 μm Carbon/ Silicone/PFA coated, Graded Index, Multimode Fiber, 150 kpsi PARAMETER VALUE Material Hermetic Carbon Carbon Carbon Carbon Primary Coating Silicone Silicone Silicone Silicone Secondary Coating PFA PFA PFA PFA Geometry Core Diameter (μm) 50 ± 2.5 50 ± 2.5 50 ± 2.5 50 ± 2.5 Clad Diameter (μm) 125 ± 2 125 ± 2 125 ± 2 125 ± 2 Core Non-Circularity (%) ≤ 5 ≤ 5 ≤ 5 ≤ 5 Clad Non-Circularity (%) ≤ 1 ≤ 1 ≤ 1 ≤ 1 Core/Clad Offset (μm) ≤ 1.5 ≤ 1.5 ≤ 1.5 ≤ 1.5 Combined Coating Diameter (μm) 750 ± 25 400 ± 50 250 ± 50 250 ± 50 Optical NA (nominal) 0.20 0.20 0.20 0.20 Attenuation 1 @ 850 nm (dB/km) < 3.0 < 3.0 < 3.0 < 3.0 Attenuation 1 @ 1300 nm (dB/km) < 1.0 < 1.2 < 1.2 < 1.2 Bandwidth @ 850 nm (MHz-km) > 300 > 300 > 300 > 300 Bandwidth @ 1300 nm (MHz-km) > 300 > 300 > 300 > 300 Mechanical Proof Test (kpsi) > 150 > 100 > 100 > 150 Operating Temperature (°C) -40 to +200 -40 to +200 -40 to +200 -40 to +200 1 Measured on loose coil