Fiber cables with amagnetic connectors

Schäfter+Kirchhoff offers amagnetic FC-APC and FC-PC fiber connectors completely made of titanium and with a ceramic ferrule.These conectors are available for all single-mode, polarization-maintaining and PCF fiber cables.

The special titanium connectors with ceramic ferrule ensure that the relative permeability µr of the connector is near 1 (χ = 5·10^{- 5}, µr = 1.00005), making it transparent to magnetic fields. The strengths of a magnetic field or the flux lines and absolute value of the defined magnetic field used in the experiment or application are not perturbed by the fiber connector. Such highly defined magnetic fields are used for example in Electron Spin Resonance (ESR) or Nuclear Magnetic Resonance (NMR) experiments. Another application of amagnetic fiber connectors is the highly precise measurement of a magnetic field (magnetometer) where perturbation of the magnetic field by magnetic materials close to the setup is undesirable.