Magneto-optical isolator/ silicon photonic chip laser annealing eliminates back-reflection noise; heat-sensitive components not damaged

https://www.eurekalert.org/news-releases/1143641

"integration requires heating isolator's magneto-optical garnet material >600°C, damaging surrounding circuits/ electrodes... overcome targeting only 700X700 μm region, crystallizing garnet without adjacent thermal damage... 13.6 dB optical communication wavelength band isolation ratio, reducing back-reflected light about 95%... scalable co-packaged optics/ mass-producible scalable silicon photonics for low-power, high-speed AI data center interconnects/ optical computers"