Nonvolatile programmable silicon photonics using an ultralow-loss Sb 2 Se 3 phase change material
Matthew Delaney, Ioannis Zeimpekis, Han Du, Xingzhao Yan, Mehdi Banakar, David J. Thomson, Daniel William Hewak, Otto L. Muskens · Science Advances · 2021
facilitates an unprecedented optical phase control exceeding 10π radians in a Mach-Zehnder interferometer. To demonstrate full control over the flow of light, we introduce nanophotonic digital patterning as a previously unexplored conceptual approach with a footprint orders of magnitude smaller than state-of-the-art interferometer meshes. Our approach enables a wealth of possibilities in high-density reconfiguration of optical functionalities on silicon chip.