Polarization-maintaining, endlessly single-mode, photonic crystal fiber cables series PCF-P with Gaussian intensity profile and low-stress fiber connectors with end caps.
The fiber is a polarization-maintaining, endlessly single-mode PCF fiber, categorized by its core diameter (e.g. 5 µm or 10 µm). The mode-field diameter MFD is almost independent of wavelength. The effective numerical NAe2 is measured for each connectorized fiber by Schäfter+Kirchhoff. The special broadband fiber has an operational wavelength range of 370 nm to 1200 nm.
The fiber length can be customer-specified (there is a minimum fiber length). The polarization-maintaining PCF fiber cables are offered as Ø 900 µm buffer in black, or a Ø 3 mm cable in black with Kevlar strain-relief.
For each fiber end the fiber connector type can be chosen (FC PC with 0°-polish or FC APC with 8°-polish). The fiber connectors of type FC assembled by Schäfter+Kirchhoff have an alignment index (key). The wide key (type "N") fiber connector has an alignment index (key) of 2.14 mm width. The narrow key (type "R") fiber connector has an alignment index (key) of 2 mm width. Special fiber connectors are available so that the fiber cable is vaccum compatible down to 10-7 mbar (only Ø 900 µm buffer fiber cables).
The fiber connectors of all PCF fiber cables are equipped with an end cap. This means that a short piece of coreless fiber (< 300 µm) is spliced onto the polarization-maintaining PCF fiber. Without a fiber core to confine the beam, the mode field diameter of the beam already starts to diverge within the fiber end cap, significantly reducing the power density at the fiber end-face.
Amagnetic fiber connectors
For FC PC or FC APC type connectors amagnetic versions completely made of titanium can be selected. Those connectors have a ceramic ferrule.
Coming soon. Contact us for more information and availability!