Eye-safe laser illuminators for long-reach Lidar and gated imaging in harsh weather conditions

Orsila, Lasse; Kaivosoja, Visa; Melanen, P.; Uusimaa, Petteri

doi:10.1117/12.2578811

Cited by 1 publication

(2 citation statements)

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“…Utilizing the APD array, a three‐dimensional image can be obtained by the pulsed‐laser flash lidar without a mechanical scanning unit which is often needed in the scanning pulsed‐laser lidar. Therefore, the system's simplicity can be greatly improved, and it can be protected from external stress for example harsh weather conditions because of the lack of moving parts 58 . The flash lidar can image an entire scene in a single laser shot, which permits high frame rates without any blurring to resolve fleeting phenomena 59 …”

Section: Principlementioning

confidence: 99%

“…Therefore, the system's simplicity can be greatly improved, and it can be protected from external stress for example harsh weather conditions because of the lack of moving parts. 58 The flash lidar can image an entire scene in a single laser shot, which permits high frame rates without any blurring to resolve fleeting phenomena. 59 APDs are a type of semiconductor detector that can convert photons to electrons and then multiply the electrons, resulting in an amplified photocurrent signal.…”

Section: Principlementioning

confidence: 99%

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Development of pulsed‐laser three‐dimensional imaging flash lidar using APD arrays

Hao

Tao

Cao

et al. 2021

Micro & Optical Tech Letters

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Over the past two decades, pulsed‐laser three‐dimensional imaging flash lidar using avalanche photodiode (APD) arrays has attracted extensive research interest due to its great potential for both military and civilian applications. This invited paper gives a brief review of the state‐of‐art pulsed‐laser three‐dimensional imaging flash lidar using APD arrays. The principle of the pulsed‐laser three‐dimensional imaging flash lidar using APD arrays is briefly introduced. According to the working mode of the APD arrays, we divide the current flash lidar into two types: the linear‐mode and the Geiger‐mode. The performances of the pulsed‐laser three‐dimensional imaging flash lidar using APD arrays working at linear‐mode and the Geiger‐mode are summarized. The opportunities and challenges in this field are also discussed. This review is expected to provide a snapshot of the current landscape of flash lidar using APD arrays to attract more interest in this field.

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Section: Principlementioning

confidence: 99%

Section: Principlementioning

confidence: 99%