UHNA ultra-high numerical-aperture single-mode fiber
The Coherent/Nufern UHNA ultra-high numerical aperture single-mode fiber is an ideal bridge fiber connecting high-NA optical waveguides and low-NA delivery fibers. On the one hand, UHNA fiber has very high coupling efficiency with other high-NA fibers (waveguides); on the other hand, the composition of UHNA fiber causes thermal core expansion when spliced with ordinary delivery fiber, thereby ensuring low-loss splicing between UHNA and low-NA delivery fibers.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Core Numerical Aperture | 0.35 |
| Mode Field Diameter @ 1100nm | 2.6±0.3nm |
| Mode Field Diameter MFD | 3.3±0.3μm |
| Mode Field Diameter @ 1550nm | 4.0±0.3nm |
| Blocking Wavelength | 1050±50nm |
| Core/Cladding Concentricity Deviation | <0.50μm |
| Coating Layer Concentricity | ≤5.0μm |
| Coating Layer Material | UV Cured Dual Acrylate |
| Short-Term Bending Radius | ≥ 12mm |
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