GaN HEMT and PCSEL integrated laser light source for advanced Lidar application
Technology Introduction:
We developed GaN HEMTs, 940 nm and 1550 nm PCSELs, and integrated light-source circuits combining GaN current drivers, gate drivers, passive components, and lasers. Using flip-chip bonding, we demonstrated a high-density, high-speed (<5 ns, >50 MHz), high-power SoP pulsed laser source. We also realized monolithic integration of a PCSEL and metasurface hologram, achieving a footprint about 2450× smaller than commercial dot projectors while reducing power consumption to 71.3%.
Industrial Applications:
LiDAR is a key technology for autonomous vehicles, robotics, and intelligent sensing. This project integrates GaN HEMTs, photonic crystal surface-emitting lasers (PCSELs), and metasurface to develop compact, long-range, high-speed, solid-state LiDAR light sources. Through advanced packaging, reliable compact LiDAR modules will be realized for autonomous driving, industrial automation, and 3D sensing. The technologies can be extended to AR/VR and smart manufacturing applications.
National Yang Ming Chiao Tung University
National Yang Ming Chiao Tung University (NYCU) was established on February 1, 2021, through the merger of National Chiao Tung University and National Yang Ming University. By integrating Chiao Tung’s strengths in information, communications, and engineering technologies with Yang Ming’s expertise in biomedical research, NYCU is committed to transcending disciplinary boundaries. The university advances interdisciplinary fields such as digital medicine, bioinformatics, smart technologies, and biomedical applications, while cultivating innovative, globally competitive talent and addressing complex real-world challenges.
Contact Information
Name：Fang, Hsiang wen
Tel：03-571-2121#59425
Address：No. 1001, Daxue Rd., East Dist., Hsinchu City 300, Taiwan
