Smart Product Number: UHNA1
Ultra-High NA Select Cutoff Single-Mode Fiber
Nufern Ultra-High NA fibers are part of the NuBRIDGE™ fiber family and are excellent bridge fibers between high NA waveguides and low NA transmission fiber. Ultra-High NA fibers provide excellent coupling efficiencies to high NA waveguides. In addition, the composition of Ultra-High NA fibers are tailored to thermally expand the core during splicing thus achieving lower splice loss to transmission fiber.
Optical Specifications
Operating Wavelength
1100 – 1600 nm
Core NA
0.280
Mode Field Diameter
4.0 ± 0.3 µm @ 1310 nm
4.8 ± 0.3 µm @ 1550 nm
3.3 ± 0.3 µm @ 1100 nmCutoff
1000 ± 50 nm
Geometrical & Mechanical Specifications
Cladding Diameter
125.0 ± 1.0 µm
Core Diameter
2.5 µm
Coating Diameter
250.0 ± 20.0 µm
Coating Concentricity
< 5.0 µm
Core/Clad Offset
≤ 0.50 μm
Coating Material
Acrylate
Operating Temperature Range
-55 to 85 °C
Short Term Bend Radius
≥ 12 mm
Long Term Bend Radius
≥ 25 mm
Prooftest Level
≥ 100 kpsi (0.7 GN/m²)
Comments
Bend Loss: Bend Loss at 1100 nm for 100 turns and a 25 mm radius is <0.001 dB.
Bend Radius: Bend Radius for 0.05 dB/100 Turns at 1100 nm is Much less than LTBR.
Coating Requirements: UV Cured, Dual Acrylate
Features & Benefits
High numerical aperture — Bend insensitive fiber for miniature packages
Thermally expandable core — Low splice loss to transmission fiber
Small Mode Field Diameter — High coupling efficiency with Planar Waveguides
Typical Applications
Fluoride and other non-silica fibers
Planar Waveguides
Silicon photonics devices
Fiber tails for high NA sources
Bridge Fiber
商品属性 [波长] 1100 - 1600 nm [掺杂类型] Ge [芯径大小] 2.5 µm [首包层直径] 125 µm [数值孔径] 0.280 [光学包层] Single