Eye Safe 9/125 Thulium-Doped Single-Mode Single Clad Fibers This single clad, small core diameter fiber is designed specifically for use in core-pumped cavities. As the fiber is polarization maintaining, it is also suitable for applications requiring linearly polarized output. Typical Applications Features & Benefits • Low/mid power 2 µm CW & pulsed • Small diameter Tm-doped core design — Robust single mode beam quality Eye Safe lasers & amplifiers • May be pumped with 793 nm diodes or resonantly pumped using a fiber laser • Eye Safe industrial & medical lasers • High pump absorption — Short fiber length, efficient lasing in the ~2 µm window • Military & commercial LIDAR • Core pumping facilitates access to shorter lasing wavelengths below 1900 nm • 2 µm fiber lasers for pumping crystal lasers Optical Specifications Operating Wavelength (nominal) Core NA Mode Field Diameter (predicted) Cutoff Core Absorption Birefringence (predicted) PM-TSF-9/125 SM-TSF-9/125 2000 nm 0.150 10.5 µm @ 2000 nm (nominal) 1750 ± 100 nm 9.00 ± 2.00 dB/m at 1180 nm 27.00 dB/m at 793 nm nominal 2.5 × 10⁻⁴ 2000 nm 0.150 10.5 µm @ 2000 nm (nominal) 1750 ± 100 nm 9.00 ± 2.00 dB/m at 1180 nm 27.00 dB/m at 793 nm N/A 125.0 ± 1.0 µm 9.0 µm 245.0 ± 15.0 µm < 20.0 µm ≤ 0.50 µm Dual Acrylate ≥ 100 kpsi (0.7 GN/m²) 125.0 ± 1.0 µm 9.0 µm 245.0 ± 15.0 µm < 20.0 µm ≤ 0.50 µm Dual Acrylate ≥ 100 kpsi (0.7 GN/m²) Geometrical & Mechanical Specifications Cladding Diameter Core Diameter Coating Diameter Coating Concentricity Core/Clad Offset Coating Material Prooftest Level The passive version of each fiber is also available. 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. NU0127- 05/18/2012