NuBEAM Large Core Delivery Fibers Nufern's specialty multimode step-index fibers are designed for compatibility with the majority of fiber interconnect systems. They also support the diode laser power delivery market. These power delivery fibers are available in many core/ clad ratios and in low or high NA versions. The buffer can be a low refractive index fluoroacrylate coating for added power confinement, or traditional silicone. Other fiber diameters are available upon request. Typical Applications Features & Benefits • Fiber coupled diode lasers • Compatible with majority of fiber interconnect systems & fiber-coupled, diode-laser packages • Couplers and pump combiners • Exceptional geometric uniformity and core/clad concentricity — Ease of assembly • Beam delivery cables • Clean room fiber draw — Eliminates coating “hot spots” • Spectroscopy and instrumentation Optical Specifications Operating Wavelength Core NA OH Level MM-S200/230/660-S-TN MM-S400/440/660-S-TN 800 – 1600 nm 0.220 ± 0.020 Low 800 – 1600 nm 0.220 ± 0.020 Low 235.0 µm 675 ± 15 µm 204.0 ± 4.0 µm Depressed 780.0 ± 30.0 µm 1100 ± 60 µm Silicone Transparent Nylon Jacket ≥ 70 kpsi (0.5 GN/m²) 450.0 µm 675 ± 15 µm 410.0 ± 10.0 µm Inner Cladding Material 780.0 ± 30.0 µm 1100 ± 60 µm Silicone Transparent Nylon Jacket ≥ 70 kpsi (0.5 GN/m²) Geometrical & Mechanical Specifications First Cladding Diameter (inner) Second Cladding Diameter Core Diameter First Cladding Material First Buffer Diameter Second Buffer Diameter First Buffer Material Second Buffer Material Prooftest Level 7 Airport Park Road, East Granby, CT 06026 • 860.408.5000 • Toll-free 866.466.0214 • Fax 860.844.0210 E-mail info @ nufern.com • www.nufern.com Nufern products are manufactured under an ISO 9001:2008 certified quality management system. Standard specifications and design parameters are listed above. Specifications are subject to change without notice. Other configurations such as alternative form factors, optimized cut-off and UV cured color coating may be available. Let us know how Nufern can assist with your requirements. NU0130- 12/16/2011