Fiber Manufacturing
Next Gen & Specialty Fibers

S14 Fiber Refractive Index Profiler

An available diagnostic tool for optical fiber production

Fiber Design Qualification

Full Description

The S14 Refractive Index Profiler provides accurate, precise characterization of the refractive index profile of single-mode, multimode, and specialty fibers using the RNF (Refracted Near Field) technique. Fiber geometry parameters and mode field diameter at user-specified wavelengths can be calculated from the S14 index profile data. Manufacturers can also use the data to predict other fiber transmission parameters such as cut-off wavelength and chromatic dispersion

Capabilities

Fiber Geometry

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Fiber Refractive Index Profile

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Features

Fast automatic fiber location

High speed sample scanning

Index profile, geometry, numerical aperture and mode field diameter

Calibration traceable to NPL

Multiple reuse of measurement cells

Key Specs

Diameter Repeatability

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Cladding

≤ 0.3 µm

Core (single-mode)

≤ 0.15 µm

Core (multimode)

≤ 0.2 µm

Circularity Repeatability

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Cladding

≤ 0.3%

Core (single-mode)

≤ 2.5%

Core (multimode)

≤ 0.5%

Concentricity Repeatability

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Cladding

N/A

Core (single-mode)

≤ 0.25 µm

Core (multimode)

≤ 0.25 µm

Refractive Index Delta

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Cladding

0.0002

Core (single-mode)

0.0002

Core (multimode)

0.0002

	Cladding	Core (single-mode)	Core (multimode)
Diameter Repeatability	≤ 0.3 µm	≤ 0.15 µm	≤ 0.2 µm
Circularity Repeatability	≤ 0.3%	≤ 2.5%	≤ 0.5%
Concentricity Repeatability	N/A	≤ 0.25 µm	≤ 0.25 µm
Refractive Index Delta	0.0002	0.0002	0.0002