More reliable, manufacturable, energy-efficient photonic systems using integratively scalable rules eliminates need for isolators

https://www.eurekalert.org/news-releases/1119215

"semiconductor lasers sensitive to optical feedback (reflections) so use bulky/ expensive optical isolators... overcome using isolator-free quantum dot laser (more stable) feedback limits simplifying production... measuring coherence collapse threshold, even under extreme continuous >100 hour feedback (up to 21.4% return), lasers support stable 10 Gbps data transmission/ remain functional from 15 to 45°C... this breakthrough paves the way for use in fields such as telecommunications, LiDAR"