Presentation Information

11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[22a-11E-7]Point-Cloud Image Acquisition of Scattering Objects Obtained by Si SLG FMCW LiDAR with Directly-Modulated DFB Laser

〇Yoshiki Komatsu¹, Tamanuki Takemasa¹, Kamata Mikiya¹, Nawa Shota¹, Yamamoto Kohei¹, Tsuchizawa Tai², Yamamoto Noritsugu², Maegami Yuriko², Yamada Kozi², Baba Toshihiko¹ (1.Yokohama Nat'l Univ, 2.AIST)

Keywords:

LiDAR

Si photonics non-mechanical FMCW LiDAR has been developed. In our SLG scanner LiDAR, an external frequency modulator has been used to generate the FMCW optical signal, but it is found to be a large facility and noisy. We report a simpler configuration that directly modulates the DFB laser by pre-distorting the current waveform to cancel out nonlinearities. The noise was suppressed by combining this method with a new LiDAR chip, and a point cloud image of a plaster cast was obtained.

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