[22p-A308-1~17] 3.10 Photonic structures and phenomena (formerly 3.11)

5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)

[22p-A308-16] Development of GaN-PCSEL-based 3D ToF-LiDAR for ranging in water (II)

〇Kenji Ogawa¹, Menaka De Zoysa¹, Masahiro Jutori¹, Kei Emoto^2,1, Tomoaki Koizumi^2,1, Shunsuke Morimoto¹, Koki Izumi¹, Takuya Inoue¹, Kenji Ishizaki¹, Susumu Noda¹ (1.Kyoto Univ., 2.Stanley Electric CO., LTD.)

Keywords:

GaN-PCSEL,LiDAR for ranging in water

Photonic Crystal Surface Emitting Lasers (PCSELs) are lasers capable of coherent oscillation over a large area, utilizing the resonant effects at singularities of two-dimensional photonic crystals near the active layer. In our previous work, we utilized a GaN-based PCSEL in the blue spectral range with low light absorption in water to demonstrate three-dimensional Time-of-Flight Light Detection and Ranging (ToF-LiDAR) in water which does not need any projection lens.In this study, we have achieved the automation of underwater three-dimensional ToF-LiDAR using FPGA control circuits. We successfully conducted real-time underwater 3D ranging by automating the system. We present our findings and success in this report.