论文标题

扫掠源来隆:同时使用宽带扫向源的FMCW射程和非机械梁转向

Swept Source Lidar: simultaneous FMCW ranging and nonmechanical beam steering with a wideband swept source

论文作者

Okano, Masayuki, Chong, Changho

论文摘要

光检测和范围(LIDAR)长期以来一直在各种应用中使用。稳健的激光雷达系统需要固态束转向机构。在这里,我们提出并演示了一种称为“ Sckept Source LiDAR”的LIDAR方案,该方案使我们能够同时执行频率调节的连续波(FMCW)范围和非机电束转向。波长色散元件提供角梁转向,而激光频率在整个调谐带宽上被宽带扫描源不断扫描。采用可调的垂直腔表面发射激光器和1轴机械梁扫描仪,已经获得了三维点云数据。扫描的源激光龙系统可以与各种梁转向元件一起灵活结合,以实现完整的固态FMCW LiDAR系统。

Light detection and ranging (lidar) has long been used in various applications. Solid-state beam steering mechanisms are needed for robust lidar systems. Here we propose and demonstrate a lidar scheme called "Swept Source Lidar" that allows us to perform frequency-modulated continuous-wave (FMCW) ranging and nonmechanical beam steering simultaneously. Wavelength dispersive elements provide angular beam steering, while a laser frequency is continuously swept by a wideband swept source over its whole tuning bandwidth. Employing a tunable vertical-cavity surface-emitting laser and a 1-axis mechanical beam scanner, three-dimensional point cloud data has been obtained. Swept Source Lidar systems can be flexibly combined with various beam steering elements to realize full solid-state FMCW lidar systems.

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