Cladding Mode Suppressed Photosensitive Single-Mode Fiber Nufern CMS-HP fiber is a photosensitive single-mode fiber designed for the production of complex Bragg grating structures, such as those with high channel count, wherein cladding mode suppression is a fundamental requirement. This fiber sets a new standard for photosensitive telecom fibers, with its excellent cladding mode suppression, high intrinsic photosensitivity, low birefringence, and low polarization mode dispersion (PMD). It allows easy, uniform grating writing; tighter channel spacing; and low splice loss to standard transmission fibers. Typical Applications Features & Benefits • Dispersion compensators • Excellent cladding mode suppression — Allows for tighter channel spacing • DWDM gain flattening filters • Mode matched to conventional transmission fibers — Low splice loss • Designed to achieve low PMD — Enables the development of low PDL devices Optical Specifications Operating Wavelength Core NA Mode Field Diameter Cutoff Cladding Mode Suppression 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 ± 1.0 µm 6.5 µm 245.0 ± 15.0 µm < 5.0 µm ≤ 0.50 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. NU0114- 11/07/2013