Luna - PXA-1000 Distributed Polarization Crosstalk Analyzer
The PXA-1000 Distributed Polarization Crosstalk (X-Talk) Analyzer measures distributed polarization cross-coupling in highly birefringent materials such as polarization maintaining (PM) fiber and birefringent waveguides.
The PXA-1000 is based on an enhanced white light interferometer whose design eliminates the strong zero-order interference and reduces the multi-coupling interference common in traditional white light interferometers, both of which can cause “ghost” peaks in the measured signal. The removal of the “ghost” peaks enables the PXA-1000 to unambiguously identify the magnitudes and locations of actual crosstalk peaks, resulting in higher measurement sensitivity, higher dynamic range, and higher spatial measurement accuracy.
It measures space-resolved stress in polarization maintaining (PM) fiber by analyzing stress- induced polarization crosstalk, enabling the location of imperfections or areas of local stress inside PM fiber coils, including any stress from the winding process.
In Y-branch waveguides, it can characterize the alignment of pigtail fibers, as well as contributions to the polarization extinction ratio (PER) from features inside the waveguide.
Wavelength | 1310 or 1550 nm |
---|---|
Xtalk measurement sensitivity | <−75 dB (−80 dB typical) |
Xtalk noise floor | −95 dB |
Xtalk resolution | 0.25 dB |
Xtalk accuracy | ±0.5 dB |
Measurement range |
1.3 or 2.6 km standard 3.1 km available |
Spatial resolution |
6cm in PM fiber 0.75mm in LiNbO 3 waveguide |
Spatial Accuracy | ±20 cm in PM fiber |
For full specifications, please download the data sheet.