Controlled generation of arbitrary cylindrical vector beams with an internally sensed coherent beam combining system

Cylindrical vector beams (CVBs) have attracted significant research interest in recent years. However, the controlled generation of high power CVBs remains a challenge. Here, we propose and demonstrate a method capable of addressing this need based on the coherent beam combining (CBC) system. By employing an internal phase-sensing technique, the phase noise is effectively compensated. Arbitrary CVBs with ±1st-order are generated via controlling the phase and polarization of each sub-beam. Furthermore, optical lattices composed of spatially distributed CVBs are realized by regulating the filling factor of the beam array. This method of CVBs generation shows great advantages in flexibility, simplicity, power scaling, and efficient mode control.