Fiber Refractive Index Analyzer

Fiber Refractive Index Analyzer

We specialize in Transverse Interferometry the most sensitive fiber measurement technology available. Our exclusive patent-pending Multi-Wavelength Optical Fiber Refractive Index Profiling Technology was first presented.

We specialize in Transverse Interferometry, the most sensitive fiber measurement technology available.

Our exclusive patent-pending Multi-Wavelength Optical Fiber Refractive Index Profiling Technology was first presented as Postdeadline Paper PDP A2 at OFC/NFOEC 2009 and has since been the subject of peer reviewed conference and journal publications. Since the measurement is performed transversely (through the side of the fiber), it is essentially non-destructive. Although the fiber’s polymer coating or buffer must be removed, the fiber itself can continue to carry an optical signal during the measurement, and if necessary the polymer coating can be restored to the fiber after the measurement is completed.

Features:

  • Multiwavelength
  • No cleave required
  • Sub-μm spatial resolution
  • Applicable to any fiber type
  • Fast measurement time
  • Measure splices, tapers, couplers

Specifications:

Refractive index accuracy +/− 0.0001
Spatial resolution ~ 500 nm
Measurement wavelength 500 nm to 1 μm
Fiber diameter 40 μm to 400 μm
Fiber material Silica glass, non-silica glass plastic
Concentricity error measurement +/− 200 nm
Core non-circularity error measurement +/− 0.4 %
Fiber type singlemode, multimode, microstructured (PCF), PM, multicore, rare-earth, cladding-pumped, large mode area, low bend loss, high-Δ, etc.