4 apps for comb (IMAGE) University of California - Santa Barbara Caption A concept illustration of four functional silicon chips enabled by coherent laser combs (from left): data transmission, microwave photonics (the use of optical devices and techniques to generate, manipulate, transport and measure high-speed radio-frequency signals), optical ranging (LiDAR; light detection and ranging), which can be used to determine variable distance by measuring the time it takes reflected light that was directed at an object to return to the receiver), and a neural network (a computer system modeled on the human brain and nervous system). Credit UC Santa Barbara Usage Restrictions For Use with Credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.