105 & 106.5 Micron Core
Power Delivery Fibers
Nufern's specialty multimode step-index fibers are designed for compatibility with the majority of fiber-coupled, single
emitter, diode-laser packages and support the diode laser power delivery market. These power delivery fibers are
available in a 105/125 core/clad ratio in low and high NA versions and also in a 106.5/125 core/clad ratio with high NA.
The 106.5/125 fiber features high temperature acrylate as a standard coating in order to meet the challenges of harsh
environments and high pump powers demanded by today’s need for robust applications. Other fiber diameters and coatings
are available upon request.
Typical Applications
• Fiber coupled diode lasers
• Couplers and pump combiners
Features & Benefits
• 0.12, 0.15 and 0.22 NA — Compatible with majority of fiber-coupled, diode-laser packages
• Exceptional geometric uniformity and core/clad concentricity — Ease of coupling to pump diodes
Optical Specifications
MM-S105/125-12A
MM-S105/125-15A
MM-S105/125-22A
MM-S106.5/125-22HTA
Operating Wavelength
800 – 1600 nm
800 – 1600 nm
800 – 1600 nm
800 – 1600 nm
Core NA
0.120 ± 0.020
0.150 ± 0.020
0.220 ± 0.020
0.220 ± 0.020
OH Level
Low
Low
Low
Low
Geometrical & Mechanical
Specifications
Cladding Diameter
125.0 ± 2.0 µm
125.0 ± 2.0 µm
125.0 ± 2.0 µm
125.0 ± 1.0 µm
Core Diameter
105.0 ± 3.0 µm
105.0 ± 3.0 µm
105.0 ± 3.0 µm
106.5 ± 1.5 µm
Coating Diameter
245.0 ± 15.0 µm
245.0 ± 15.0 µm
245.0 ± 15.0 µm
245.0 ± 15.0 µm
Core/Clad Offset
≤ 3.00 µm
≤ 3.00 µm
≤ 3.00 µm
≤ 3.00 µm
Coating Material
UV Cured, Dual Acrylate
UV Cured, Dual Acrylate
UV Cured, Dual Acrylate
UV Cured, High
Temperature, Dual Acrylate
Operating Temperature Range
-40 to 85 °C
-40 to 85 °C
-40 to 85 °C
-55 to 125 °C
Short Term Bend Radius
≥ 12 mm
≥ 12 mm
≥ 12 mm
≥ 12 mm
Long Term Bend Radius
≥ 25 mm
≥ 25 mm
≥ 25 mm
≥ 25 mm
Prooftest Level
≥ 100 kpsi (0.7 GN/m²)
≥ 100 kpsi (0.7 GN/m²)
≥ 100 kpsi (0.7 GN/m²)
≥ 100 kpsi (0.7 GN/m²)
