???????????????????????????????????????????????????????????????2×6 VCSEL???к?32×32 MPPC???????????????????????????????????????????????????о??????????????10kHz??120m??Χ???????????86.23%?????????????μ????????????0.6m????70m???????????????????3D?????????????С??5cm??????????????????????????????????????????10cm???????????????????time-gating method??????????????????????β??????????????????120m??????????

?????????????

???????LiDAR???????3D???????????????????????AR??????????????????????????????????????????????????????????????÷???輤?????????????????????Flash LiDAR?????????????????3D????????????????Flash LiDAR?????????????????????????????????????????????????????????????3D????е??????????????з??????????????????????????????????????????????????????????3D????ó????????г??????????С????????????????????????????????????????????????????????????

2013??Niclass????????????32????????????????????????digital multi-pixel photon counter??MPPC?????У??????????6×2????????????????single photon avalanche diode?? SPAD??????????????????LiDAR?????????б???3????????С????1D??裬???????340×90??????????170°×4.5°???????FoV????0.5°×0.05°????????10Hz??????

2017??Perenzoni???????????64 × 64 2D????MPPC?????????????????8??SPAD?????????????LiDAR??????????????367m???????????20cm?????7.7Hz??

2019??Hutchings????????256×256 SPAD???У????????????????1???????????????4×4 SPAD?????????50m???????????1.2°×1.2°??FoV??0.02°×0.02°????????30Hz??????

2020??Seo???63???????MPPC?????????????????4??SPAD????????????????????48m????????0.85cm????????120°??1D??輤?????????????0.05°×0.2°???????????2200×36?????1.18Hz??

2021??Padmanabhan????????256×128 SPAD???У????????????????1??????γ????16×16 SPAD???У??????????10m????????2°×2°?????????0.16°×0.16°??????????????128×12??

2021??Kumagai????????183×600 SPAD???У???????3×4??4×4??????1?????????????300m???????30cm??????25.2°× 9.45°?????????0.15°×0.15°??????????????168×63???????г???????1?????????????У????20Hz??

?????????????????????Flash LiDAR???????????????????????????????????????????????????Ч?????д??????????????????????????“???”???????????????3D?????????????????????????????????о????????????????????????????????????????

??????????С??????????????????С??????????????????????????????????????????佹???????????????????????Χ??

??Σ??????????????????淢?傷??????VCSEL?????к?MPPC???У?????????????????У???????????書????????????????????????????????????????????????????????

????????????????????????????????????????????????????η?????????????????????????????????????

?о?????????????12??VCSELо?????2×6 VCSEL??????顣???о?????110????????????????????1320??????????????????????????????????Ρ?

??a??VCSEL??????飻??b??VCSEL??????·????

MPPC?????????????????????Hamamatsu???????????S15013-0125NP-01????32×32???MPPC???????MPPC????12??SPAD???????????????????????????TDC????·???????????312.5ps??

??a??MPPC???м?????????·????b??????????????

?????о??????940nm?????????FWHM = 10nm???????????????????????е??????????????????120mm?????????46mm??????32×32 MPPC???е?й??????4mm×4mm????????ι????????????ó???????120m????????????4m??

?о?????????????????????????????????????о???
1????????????????????
2????????????????????
3???????????????????????
4????????????????????
5?????????????????????
6??????????μ?????????????

????????????TDC?????α??????

???????????????ü?????????????????10kHz???????????????1p.e??120m???????????????86.23%??????????1000×??????￡????????????1.40%???????η??傷???????????????????????????????Χ?????1km?????????????1%??????10kHz???????????????????100Hz?????????????￡????????????????????0.6m????????????????????????????????????????С??????????????????????????????????????????70m??????????????????3D?????????????С??5cm????????????????????????????????????????????10cm?????????????????????????????????????β??????????????????120m????????????

??a?????????????????b??TDC?????α??????

??a??????????CMOS???????????b??TDC?????α??????

?ü???????????????С??????????????????????????????????????????п???????????????????????????????????????????????????????????ü????????????

?????????

Yumei Tang, Zeyu Fu, Runze Yang, Hui Zhao, JIAN Qiu, and Kefu Liu, "Long-range high-speed laser imaging based on VCSEL array and MPPC array," Opt. Express 30, 23734-23745 (2022)

https://doi.org/10.1364/OE.460826

?????????

?????????????LiDAR????????????-2022?桷

?????????ToF?????????????????-2020?桷

??????????VCSEL???????г?-2021?桷

??VCSEL?????????-2022?桷

??VCSEL???????????????-2022?桷??