chanelink logo
CHANELINK
English

Research on LiDAR at the University of Electronic Science and Technology of China, published in Nature

94
2024-06-22 09:49:06
See translation

The team from the School of Information and Communication Engineering at the University of Electronic Science and Technology of China has proposed for the first time a laser radar instrument based on the dispersion Fourier transform method, forming a new demodulation mechanism. This instrument breaks through the cross limitations of measurement speed, accuracy, and distance, and has unique advantages in the discovery of low, slow, and small targets such as drones. The relevant paper was published in Nature Communications.


Lidar, as a powerful tool, can draw spatial information in real-time with extremely high accuracy and is widely used in industrial manufacturing, remote sensing, airborne and vehicular tasks. In the past two decades, the rapid development of optical frequency combs has improved measurement accuracy to the level of quantum noise limitation. The research at the University of Electronic Science and Technology of China uses the dispersion Fourier transform method to analyze the data information of the phase-locked vernier double soliton laser comb. Through online pulse stretching, it achieves full spectrum interferometric measurement based on traditional time interferometry or pulse reconstruction methods to identify pulse delay. This results in an absolute distance measurement accuracy of 2.8 nanometers and a measurement distance of 1.7 kilometers. In addition, this method has the unique ability to completely eliminate dead zones, which is particularly beneficial for small object detection.

Source: OFweek

Related Recommendations

  • Multiple international laser companies continue to increase investment in the Chinese market

    In early spring of 2025, China's laser industry once again attracted the attention of global laser giants, ushering in a new wave of international investment boom.After several global laser giants accelerated their layout in China in 2024, in February 2025, Carl Zeiss from Germany and Bystronic from Switzerland, two global giants in the optical and laser fields, also announced significant expansio...

    02-15
    See translation

  • Progress in Theoretical Research on the Mechanism of Liquid Terahertz Wave Generation by Precision Measurement Institute

    Terahertz waves have significant application value in communication and imaging. The nonlinear interaction between strong field ultrafast laser and matter is one of the important ways to generate terahertz waves. The experimental and theoretical research related to terahertz generation media such as plasma, gas, and crystal is relatively sufficient. However, liquid water is a strong absorbing medi...

    2024-03-22
    See translation

  • Deere Laser's self-developed laser induced sintering technology, with LIF equipment orders exceeding 100GW in production capacity

    Recently, Deere Laser received mass production orders and bid confirmations for laser induced sintering (LIF) equipment from multiple top customers, with a cumulative production capacity exceeding 100GW.As an innovative technology iteratively developed by the company based on its own LIR technology and LIA technology, LIF technology has won industry recognition for its excellent efficiency improve...

    2023-09-18
    See translation

  • Intel installs the first EUV manufacturing tool that can emit lasers hotter than the sun

    Chip giant Intel announced that it has completed the assembly work of the world's first commercial high numerical aperture (NA) extreme ultraviolet lithography (EUV) scanner. This device greatly improves the resolution and feature scaling of next-generation chips by changing the optical design used to project printed images onto silicon wafers.This lithography equipment weighing 150 tons has been ...

    2024-04-22
    See translation

  • US blue laser company Nuburu plans to raise nearly $65 million in funding

    Recently, Nuburu, a high-power industrial blue light laser company in the United States, announced that the company has agreed to a new financing arrangement worth up to $65 million.This agreement was reached between Nuburu and the Delaware hedge fund Liquous LP, which claims to provide a "customized liquidity solution". According to the terms of the agreement, Nuburu will first receive an initial...

    2024-10-11
    See translation