Part #:
980M-HP-80

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980 nm Reduced Clad Medium-NA Select Cutoff Single-Mode Fiber

Nufern’s 980 nm high-performance select cut-off 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. Available in 80 μm and 125 μm form factors, Nufern’s 980 nm fibers offer exceptional uniformity and core/clad concentricity specifications, very tight second mode cut-off tolerances, and tighter bend radius applications in miniaturized fiber optic packages. These high-performance specifications result in superior strength, increased component reliability, improved production yields and reduced component manufacturer costs.
Applications
  • Pump Diode Pigtails
  • Metro components
  • Small form factor components
  • Couplers
Features & Benefits
  • Exceptional uniformity and core/clad concentricity — Low, consistent splice loss to telecom components
  • Extremely tight second mode cutoff tolerance — High yield coupler manufacturing
  • Higher proof test levels — Critical for long-term reliability in tight bend applications

Optical Specifications

Operating Wavelength980–1600 nm
Mode Field Diameter4.7 ± 0.3 µm @ 980 nm
Second Mode Cut-Off930 ± 30 nm
Attenuation≤ 3.0 dB/km @ 980 nm
Core Numerical Aperture (nominal)0.17
Bend Loss for 100 turns @ LTBR0.001 dB @ 980 nm
Bend Radius for 0.05 dB per 100 TurnsMuch less than LTBR @ 980 nm (nominal)
40 mm @ 1550 nm

Geometrical & Mechanical Specifications

Clad Diameter80.0 ± 2.0 µm
Coating Diameter165 ± 10 µm
Core-Clad Concentricity< 0.5 µm
Coating/Clad Offset≤ 5 µm
Coating MaterialUV Cured, Dual Acrylate
Operating Temperature-55 to +85 °C
Short-Term Bend Radius≥ 4 mm
Long-Term Bend Radius≥ 9 mm
Proof Test Level≥ 200 kpsi (1.4 GN/m²)

RoHS Compliant