A 200 MHz 14 W Pulsed Optical Illuminator With Laser Driver ASIC and On-Chip DLL-Based Time Interpolator for Indirect Time-of-Flight Applications

Zhuo, Shenglong; Wang, Yuwei; Xia, Tao; Wu, Yifan; Zheng, Wei; Sun, Miao; Lin, Zhihong; Chang, Patrick Yin

doi:10.1109/tcsii.2022.3216451

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…Even though the data transmission markets grow steadily, VCSELs find new applications and occupying adjacent markets in such topical areas as infrared lighting [27], industrial heating, autonomous transport systems [28,29], various industrial, gas, biomedical sensors [30], and consumer products, such as smartphones with facial recognition systems, gestures and autofocus [31].…”

Section: Introductionmentioning

confidence: 99%

Review on Single-Mode Vertical-Cavity Surface-Emitting Lasers for High-Speed Data Transfer

Rochas¹,

Kovach²,

Kopytov³

et al. 2022

Rev. Adv. Mater. Technol.

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Vertical-cavity surface-emitting lasers (VCSELs) are wide-spread laser sources for different applications in optical communication and sensing. The evolution of fabrication processes and new technological approaches allow to obtain high-Q single-mode VCSELs with data rates more than 100 Gbps. This review discusses basic designs and construction features of VCSELs that effect on their applications. The advances over the past 20 years for single-mode VCSELs of 850 nm, 1300 nm and 1550 nm wavelength ranges are presented.

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Section: Introductionmentioning

confidence: 99%

Review on Single-Mode Vertical-Cavity Surface-Emitting Lasers for High-Speed Data Transfer

Rochas¹,

Kovach²,

Kopytov³

et al. 2022

Rev. Adv. Mater. Technol.

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Establishing equivalent circuits of mounted, high-power VCSEL arrays for iToF cameras

Liu,

Wang,

Zhang

et al. 2024

Opt. Lett.

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Solid-state indirect time-of-flight (iToF) cameras are crucial to numerous short-to-medium-range applications, owing to their advantages in terms of system integrability and long-term reliability. However, due to the low light intensity, the sensing range of iToF cameras is generally limited to a few meters, which hinders their wide applications. Further increasing the sensing range requires not only higher-power laser diodes but also well-designed driver circuits, which are based on prior knowledge of the laser diodes’ equivalent circuits (ECs). However, experimental studies on ECs of a mounted, high-power vertical-cavity surface-emitting laser (VCSEL) array that comprehensively incorporates all parasitic components, especially parasitic stemming from printed circuit boards (PCBs), remain absent. In this Letter, an 850 nm VCSEL array with a 15.3 W peak power and a 581 MHz bandwidth is fabricated, and more importantly, its EC is experimentally established. Leveraging the accurate EC, a compact iToF camera with a sensing range up to 11.50 m is designed. In addition, a modified precision model is proposed to better evaluate the iToF camera’s performance.

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A 200 MHz 14 W Pulsed Optical Illuminator With Laser Driver ASIC and On-Chip DLL-Based Time Interpolator for Indirect Time-of-Flight Applications

Cited by 2 publications

References 20 publications

Review on Single-Mode Vertical-Cavity Surface-Emitting Lasers for High-Speed Data Transfer

Review on Single-Mode Vertical-Cavity Surface-Emitting Lasers for High-Speed Data Transfer

Establishing equivalent circuits of mounted, high-power VCSEL arrays for iToF cameras

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