Optoscribe (West Lothian, Scotland) has introduced an ultra-low crosstalk option to its 3D Optofan series of multicore fiber fanouts. By controlling the 3D waveguide layout inside the component, stray light is minimized resulting in reduced crosstalk within the fanout of <-75 dB. The 3D Optofan series connects to Singlemode and Multicore Fibers and enables the transmission of high data rates over short and long haul distances. The 3D Optofan offers a broad flat spectral response with high throughput and minimal insertion losses. Robust packaging and product flexibility enables simple integration across a range of application scenarios.