Rednered Scientific Reports (image) University of Illinois College of Engineering Share Print E-Mail Caption This is an illustration of ultralow-loss complete optical isolation in a fiber. Light in one direction is absorbed by the spherical resonator (yellow arrows) while light in the opposite direction passes through unaffected (red arrows). Credit Gaurav Bahl Usage Restrictions None Share Print E-Mail 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.