Integrated Laser Intensity Stabilization through Optical Nonlinearity

Stanford researchers have found a way to make laser output more stable and less noisy using a compact passive device. Many laser-based systems lose performance because of fluctuations in laser power, and current solutions often rely on active electronic controls that can be complicated, harder to scale, and limited in speed. This technology is designed to reduce that noise more simply while fitting within compact optical systems. It may be useful for products in communications, sensing, imaging, and precision measurement.