May 2000Coherent Inc.Request Info
A high-power, fiber-coupled 770-nm diode laser from Coherent Inc., Semiconductor Group, is designed for optically pumping potassium vapor to generate 3He, 21Ne and 129Xe by spin exchange. The polarized gases can be used in high-resolution medical imaging as well as physics and materials science experiments. The device delivers 16 W through an 800-µm fiber with an NA of <0.16. The spectral width is <2 nm full width half maximum, and drive conditions are 2 V at 31 A.