Image enhancement in a miniature self-imaging degenerate optical cavity
Albert Ryou, Shane Colburn, Arka Majumdar · Physical Review A · 2020
Image-enhancing optical cavities offer an intriguing platform for nonlinear optical processing of two-dimensional signals, with potential applications in optical information processing and optically implemented artificial neural networks. Here, we analyze the performance of a self-imaging degenerate cavity via numerical simulations and show the existence of a cavity-size-dependent minimum spread in the transverse-mode resonances. This nondegeneracy, in turn, leads to an inherent trade-off between the resonant enhancement and the fidelity of the intracavity image as the cavity finesse changes.