980/1060 nm Select Cutoff Single-Mode Fiber Nufern’s 1060-XP select cutoff single-mode fibers are optimized for use by component manufacturers in the telecommunications wavelengths. These application-specific fibers were developed for pump diode pigtails, unique delivery for components and couplers. They offer exceptional uniformity and core/clad concentricity specifications, very tight second mode cut off tolerances, and tighter bend radius for applications in optical packages. These extra highperformance specifications result in superior strength, increased component reliability, improved production yields and reduced component manufacturer costs. Typical Applications Features & Benefits • Pump Diode Pigtails • Exceptional uniformity and core/clad concentricity — Low, consistent splice loss to telecom components • 980/1550 nm WDM Couplers • Extremely tight second mode cutoff tolerance — High yield coupler manufacturing • Single Clad Yb-fiber pigtails • Higher proof test levels — Critical for long-term reliability in tight bend applications Optical Specifications Operating Wavelength Core NA Mode Field Diameter Cutoff Core Attenuation 1060-XP 980 – 1600 nm 0.140 5.9 ± 0.5 µm @ 980 nm 6.2 ± 0.5 µm @ 1060 nm 9.5 ± 0.5 µm @ 1550 nm 920 ± 30 nm ≤ 1.5 dB/km @ 1060 nm ≤ 2.1 dB/km @ 980 nm Geometrical & Mechanical Specifications Cladding Diameter Core Diameter Coating Diameter Coating Concentricity Core/Clad Offset Coating Material Operating Temperature Range Short Term Bend Radius Long Term Bend Radius Prooftest Level 125.0 ± 0.5 µm 5.8 µm 245.0 ± 10.0 µm < 5.0 µm ≤ 0.30 µm UV Cured, Dual Acrylate -55 to 85 °C ≥ 6 mm ≥ 13 mm ≥ 200 kpsi (1.4 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. 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. NU0018- 12/16/2011