Refractive Index Measurement Services

Measurement of 1-D, 2-D, 3-D Fiber Refractive Index Profiles; No Costly Instrument Purchase; 500 to 1000 nm; Refractive Index Accuracy ±0.0001; Spatial Resolution 500 nm

Based on Interfiber Analysis’ IFA-100 multi-wavelength interferometric optical fiber analyzer, AMS Technologies offers refractive index measurement services for product development, incoming inspection and forensic analysis on optical fibers.

At our testing facility in Munich we can secure quick sample turnaround and offer confidentiality of measurement results. The refractive index profile allows determination of key transmission parameters like chromatic dispersion, mode field diameter, bandwidth, birefringence and polarization mode dispersion (PMD).

Line plots and tomography scans: The measurements can be taken in one dimension giving a line plot of the refractive index at any given cross section of the fiber. This measurement assumes the fiber to be symmetrical, and symmetrical geometry is assumed for the computation of the refractive index profile. For the two-dimensional measurements, several lower-dimensional projections are combined to form a full surface profile of the refractive index. This computer tomography based approach does not take assumptions for the fibers being symmetric.

Environmental testing solution: The interferometry measurement technique used in the setup does not require external calibration. Measurements can be done with fiber diameters from 40 to 400 µm within a measurement wavelength from 500 to 1000 nm. Fiber material can be silica glass, non-silica glass or plastic. The accuracy of index of refraction is ±0.0001, accuracy of stress measurement is ±5 MPa.

Contact AMS Technologies’ fiber property measurement experts to find out how our refractive index measurement services can solve your measurement challenges!

Key Features:

• Measurement of 1-D, 2-D, and Even 3-D Fiber Refractive Index Profiles
• No Costly Instrument Purchase
• Rapid Turnaround
• Experienced Measurement Staff
• Any Fiber Type: Single Mode (SM), Multi Mode (MM), Polarization Maintaining PM), Micro-Structured (PCF), Multicore, Rare-earth, Cladding-pumped, Large Mode Area (LMA), Low Bend Loss, High-Δ, etc.
• Any Fiber Material: Silica, Non-silica, Plastic
• Any Fiber Diameter From 40 to 750 μm
• Any Measurement Wavelength From 500 to 1000 nm
• Sub-μm Fiber Geometry Measurements
• Sample Lengths Can be as Sort as Centimeters
• Refractive Index Accuracy: ±0.0001
• Sub-µm Spatial Resolution: About 500 nm
• No Cleave Required
• Fiber Diameter: 40 to 400 µm
• Fiber Material: Silica Glass, Non-silica Glass, Plastic
• Concentricity Error Measurement: ±200 nm
• Core Non-circularity Error Measurement: ± 0.4%

Applications: One-Dimensional Refractive Index Measurement; Two-Dimensional Refractive Index Measurement; One-Dimensional Stress Measurement; Three-Dimensional Refractive Index Measurement