posted on 2024-01-11, 09:40authored byJan Jabczynski
The application of a conical wavefront in the near field of the tiled aperture coherent beam combination (CBC) produces a “star-like” Bessel-Gauss irradiance pattern i.e. BG-CBC, in the far field. The properties of such a structured optical field were numerically investigated. In contrast to that for the classical CBC, the power diffracted beyond the first few BG-CBC rings is nearly homogenously distributed. Additionally, shaping the segmented conical wavefront can result in a significantly increased caustic length.