Complex-optical-field lidar system for range and vector velocity measurement.

  title={Complex-optical-field lidar system for range and vector velocity measurement.},
  author={Shuang Gao and Maurice O'Sullivan and Rongqing Hui},
  journal={Optics express},
  volume={20 23},
A coherent lidar system based on the measurement of complex optical field is demonstrated for the first time. An electro-optic in-phase/quadrature (I/Q) modulator is used in the lidar transmitter to realize carrier-suppressed complex optical field modulation in which the positive and the negative optical sidebands can carry independent modulation waveforms. A fiber-optic 90° hybrid is used in the lidar receiver for coherent heterodyne detection and to recover the complex optical field. By… CONTINUE READING

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