Fig. 2From: On-chip optical sources of 3D photonic integration based on active fluorescent polymer waveguide microdisks for light display applicationSchematic diagram of the 3D photonic integrated optical sources. a The schematic architecture and operating principle of the microdisk-based on-chip optically pumping light sources; b structural parameters of the microdisk-based waveguide resonator in x–y profiles; c the size of cross-sectional gain waveguide in y–z profilesBack to article page