81-beam coherent combination using a programmable array generator.
- Author(s): Du, Qiang;
- Wang, Dan;
- Zhou, Tong;
- Li, Derun;
- Wilcox, Russell
- et al.
Published Web Locationhttps://doi.org/10.1364/oe.416499
We have generated 81 independently controllable beams using a spatial light modulator and combined them on a diffractive combiner, to characterize the combiner and develop a fast phase error detection scheme. A key parameter of the diffractive combiner is measured in a new way, enabling an efficient combination when programming calibrated phases of each beam. This testbed provides a platform for development of advanced feedback phase control of high channel-count beam combination.