400 Micron Core Power Delivery Fibers Nufern's specialty multimode step-index fibers are designed for compatibility with the majority of fiber-coupled, bar and stack diode-laser packages and support the diode laser power delivery market. These power delivery fibers are available in 400/440 and 400/480 core/clad ratios in low and high NA versions. The 400/480 has a low refractive index fluoroacrylate coating for added power confinement. Other fiber diameters are available upon request. Typical Applications Features & Benefits • Fiber coupled diode lasers • 0.12 and 0.22 NA — Compatible with majority of fiber-coupled, diode-laser packages • Couplers and pump combiners • Exceptional geometric uniformity and core/clad concentricity — Ease of coupling to pump diodes Optical Specifications Operating Wavelength Core NA First Cladding NA (5%) OH Level Geometrical & Mechanical Specifications Cladding Diameter Core Diameter Coating Diameter Core/Clad Offset Coating Material Prooftest Level 625.0 ± 25.0 pm s 5.00 pm UV Cured, Dual Acrylate > 100 kpsi (0.7 GN/m2) 625.0 ± 25.0 pm s 5.00 pm UV Cured, Dual Acrylate > 100 kpsi (0.7 GN/m2) 640.0 ± 25.0 pm s 5.00 pm Low Index Polymer > 100 kpsi (0.7 GN/m2) fJUFERN 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.