[18p-A34-1~16] 3.10 Photonic structures and phenomena

5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)

[18p-A34-13] Development of GaN-PCSEL-based 3D ToF-LiDAR for ranging in water (IV)

〇Kenji Ogawa¹, Menaka De Zoysa¹, Masahiro Jutori¹, Atsushi Kitamura¹, Kei Emoto^2,1, Tomoaki Koizumi^2,1, 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 surface-emitting lasers that utilize the resonant effect at the singularity of a two-dimensional photonic crystal placed near the active layer, enabling large-area coherent oscillation. We have adopted GaN as one of the material systems for PCSELs and have been working on the development of blue-band PCSELs. This time, we report on the results of long-distance (over 4 meters) ranging underwater using high beam quality and high power drive in PCSELs, as well as high-sensitivity SPADs.