Developing a novel spatially-diverse point-to-multi-point (SDPtMP) optical fronthaul distribution network involves incorporating a degree-four spatial division multiplexing (SDM) feed for a primary capacity multiplier and wavelength division multiplexing (WDM) for a secondary capacity multiplier. Introducing an SDM feed to the Optical Distribution Network (ODN) and establishing capacity allocations in digital subcarrier assignments per Remote Unit (RU) and Central Unit (CU) enables all RUs to operate on a shared optical wavelength without interference. This achievement is realized through an innovative optical device that optically carves out transmitted digital subcarriers using an array of sharp optical interleaving filters designed to function collectively as a circular subcarrier multiplexer/demultiplexer. When the capacity is fully utilized across the SDM group, a second optical wavelength may be introduced and assigned to specific RUs using a Wavelength Selective Switch (WSS). The SDPtMP architecture derives benefits from the combined capacity scaling of SDM and WDM, along with the spatial and spectral assignment of RU-CU connections, all achieved without the need for splitters or combiners in the light path.