Single shot polarimetry imaging of multicore fiber
  We report an experimental test of single-shot polarimetry applied to the problem of real-time monitoring of the output polarization states in each core within a multicore fiber bundle. The technique uses a stress-engineered optical element together with an analyzer and provides a point spread function whose shape unambiguously reveals the polarization state of a point source. We implement this technique to monitor, simultaneously and in real time, the output polarization states of up to 180 single mode fiber cores in both conventional and polarization-maintaining bundles. We demonstrate also that the technique can be used to fully characterize the polarization properties of each individual ber core including eigen-polarization states, phase delay and diattenuation. 
Siddharth Sivankutty, Esben Ravn Andresen, G\'eraud Bouwmans, Thomas   G. Brown, Miguel A. Alonso and H\'erve Rigneault
physics.optics physics.ins-det