Wide-range optical sensors based on a single ring resonator are investigated theoretically and experimentally.The sensor worked at the TE and TM modes simultane
A modified spectral beam combining(SBC) approach based on double asymmetrical filters was proposed. By using this scheme, the high-order lateral modes at the ed
We report a method for simultaneously and directly measuring all six-degrees-of-freedom(six-DOF) motion errors of a rotary axis. Such a method combines the prin