Low-Noise Current Controller (image) DOE/Pacific Northwest National Laboratory Share Print E-Mail Caption PNNL staff developed this low-noise current controller to deliver stable power to sensors that use quantum cascade lasers to analyze very small gas concentrations. Wavelength Electronics recently licensed the technology and plans to release its own line of products based on it. Credit PNNL Usage Restrictions Credit PNNL 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.