Abstract: We present an all-fiber 770 nm laser module based on second harmonic generation (SHG) in a periodically poled lithium niobate (PPLN) waveguide. The laser module provides an output power of ...
Quadrature-Phase Detection of Laser SMI Based on Square-Wave Modulation for Displacement Measurement
Abstract: We propose a new method called square-wave modulation quadrature separation (SWMQS) to reconstruct the displacement of the target in real time. A pair of quadrature laser self-mixing ...
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