1550 nm Single-Mode Double Clad Coupler Fiber0 pages

1550 nm Single-Mode
Double Clad Coupler Fiber
Nufern's single-mode double clad coupler fiber is designed for 1550 nm amplifier modules utilizing higher power multimode
pumps. With a core designed to match SMF-28™ and an inner cladding glass-on-glass structure optimized to accept
multimode pump energy, this fiber is ideal for the signal leg in high power CATV couplers.
Typical Applications
Features & Benefits
• CATV pump/signal couplers
• Single-mode core — Low splice loss to SMF
• Laser delivery/fluorescence
• Glass-on-glass double clad structure — Compatible with Nufern Power Delivery Fibers
• Exceptional geometric uniformity and core/clad concentricity — Superior fiber diameter tolerances
Optical Specifications
Operating Wavelength (nominal)
Core NA
Mode Field Diameter
Cutoff
Core Attenuation
SM-9/105/125-20A
1550 nm
0.120
10.5 ± 0.7 µm @ 1550 nm
1250 ± 60 nm
≤ 0.5 dB/km @ 1550 nm
Geometrical & Mechanical
Specifications
First Cladding Diameter (inner)
Second Cladding Diameter
Core Diameter
Coating Diameter
First Cladding Material
Coating Material
Prooftest Level
105.0 ± 5.0 µm
125 ± 1 µm
9.0 µm
245.0 ± 15.0 µm
Glass Inner Cladding
UV Cured, Dual Acrylate
≥ 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.
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.
NU0100- 12/16/2011