First results of the non-common path aberration correction in the Evanescent Wave Coronagraph testbed

The Evanescent Wave Coronagraph (EvWaCo) uses the principle of frustrated total internal reflection to suppress the starlight. Its achromatic focal plane mask comprises a lens and a prism placed in contact. By varying the pressure between these components, the size of the mask is adjustable. Furthermore, this configuration allows light from the star and companion to be collected simultaneously. The EvWaCo testbed has been upgraded to include a deformable mirror. This paper shows preliminary results on correcting the non-common path aberrations using the algorithms designed for EvWaCo.