600 Micron Core Power Delivery Fiber Coherent | 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. This fiber features a 600 micron core diameter witha 0.22 NA and a 660 micron clad diameter with Coherent | Nufern's proprietary NuCoat-FA, a low refractive index fluoroacryalte coating, for added power confinement. Other fiber diameters are available upon request. Typical Applications Features & Benefits • Fiber coupled diode lasers • 0.22 NA — Compatible with the majority of fiber-coupled, diode-laser packages • Couplers and pump combiners • Exceptional geometric uniformity and core/clad concentricity — Ease of coupling to pump diodes • Pure silica core — High resistance to optical damage • Clean room fiber draw — Eliminates coating "hot spots" • All fiber proof tested to > 100 kpsi — Critical for ensuring long term reliability when coiling 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 Short Term Bend Radius Long Term Bend Radius Prooftest Level 660.0 ± 12.0 µm 600.0 ± 12.0 µm 875.0 ± 30.0 µm ≤ 7.00 µm Low Index Acrylate ≥ 34 mm ≥ 100 mm ≥ 100 kpsi (0.7 GN/m²) 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. Custom developed fiber (FUD) specifications are subject to change without notice. Other configurations such as alternative form factors, optimized cut-off and UV cured color coating may be