Robust, scalable manufacturing approach multiplexes up to 37 separate multimode semiconductor lasers into a single optical fiber

https://www.eurekalert.org/news-releases/1119457

"supports up to 222 spatial modes... <0.5 mm long, several orders magnitude smaller than existing optical multiplexing systems... as low as -0.6 dB coupling losses preserve light sources' brightness/ modal capacity... high-resolution 3D printed directly onto laser chips... high-power laser arrays coupled into fiber optics for high-performance photonics: optical communications, high-power industrial lasers, advanced sensors"