Programmable Photonics

• Programmable Photonics has become one of the most stimulating topics in photonics, as a fundamental platform for realizing Photonic AI & Photonic Quantum Computing. 

• The current architecture of programmable photonic circuits employs waveguide platforms, which inherently degrade scalability due to propagating natures of light.

• For example, the spatial footprint & gate numbers in current programmable photonic circuits have O(N2) scaling.

• Here, we are focusing on overcoming this limit by utilizing other physical axes instead of spatial domains,
  in order to realize highly integrated programmable photonics & photonic AI! [arXiv:2305.17632]