Weihan Xu

Title: Innovations of Weihan Xu in LiDAR Technology

Introduction

Weihan Xu is a prominent inventor based in Shanghai, China, known for his significant contributions to the field of LiDAR technology. With a total of three patents to his name, Xu has been at the forefront of developing advanced optical systems that enhance the capabilities of LiDAR applications.

Latest Patents

One of Xu's latest patents is a chip-scale silicon-based hybrid-integrated LiDAR system. This innovative system features a transmitting end that includes a narrow-linewidth tunable laser source, a silicon-nitride-based beam splitter, a silicon-based phase shifter array, and a silicon-nitride-based unidirectional transmitting antenna array. The design is based on the principle of reciprocity of light propagation, with a receiving end that comprises a silicon nitride unidirectional receiving antenna array, a silicon nitride beam splitter, and a silicon-based coherent receiving module. The system also integrates a backup system and an electric controller to drive the phase shifters and processing module, showcasing a sophisticated multilayer integration of modules on silicon and silicon nitride platforms.

Another notable patent is a three-dimensional scanning LiDAR based on one-dimensional optical phased arrays. This system includes a transmitting end, a coherent receiving end, and an incoherent receiving end, all designed as one-dimensional arrays. The innovation reduces the phase control complexity of the three-dimensional scanning phased array, avoiding the use of high-cost tunable lasers and large crosstalk grating array antennas. This LiDAR system provides pure solid-state three-dimensional scanning with enhanced speed and integration levels, making it highly practical for various applications.

Career Highlights

Weihan Xu is affiliated with Shanghai Jiao Tong University, where he continues to push the boundaries of research and development in optical technologies. His work has garnered attention for its practical applications and innovative approaches to solving complex problems in the field.

Collaborations

Xu collaborates with notable colleagues, including Liangjun Lu and Linjie Zhou, contributing to a dynamic research environment that fosters innovation and technological advancement.

Conclusion

Weihan Xu's contributions to LiDAR technology through his innovative patents reflect his expertise and commitment to advancing optical systems. His work not only enhances the capabilities of LiDAR applications but also sets a foundation for future developments in the field.