Replacing hydrogen with deuterium in silicon nitride optical waveguides enables wafer-scale supercontinuum generation; CMOS fabrication

https://www.eurekalert.org/news-releases/1141171

"optic-fiber broadband light sources bulky/ silicon nitride fabrication requires damaging high-temperature treatments... overcome using low-loss silicon nitride waveguide generating broadband supercontinuum light on 1 chip... shifts absorption peak away from telecommunications wavelengths... hit with IR pulses, waveguide expands laser into 1.7-octave light spectrum spanning red to deep IR... scalable high-end integrated photonic light source: medical imaging, precision measurement, optical communications"