CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume PC12890 > Article
Presentation
9 March 2024 Electro-optic comb-enabled precise ambiguity-free distance measurement with 10-kHz acquisition rate
Yifan Qi, Xingyu Jia, Jingyi Wang, Xinlun Cai, Guanhao Wu, Yang Li
Author Affiliations +
Proceedings Volume PC12890, Smart Photonic and Optoelectronic Integrated Circuits 2024; PC128900S (2024) https://doi.org/10.1117/12.3000711
Event: SPIE OPTO, 2024, San Francisco, California, United States
Abstract
With the blooming of artificial intelligence technology, the distant sensing systems with an agile deployment, a high refreshing rate and a high precision are demanded to map the fast-changing environment in terms of 3D point cloud for autonomous vehicles and smart home products. Frequency modulated continuous wave (FMCW), as a coherent detection method, shows a high precision, a high selectivity against ambient light, the intrinsic capability in speed sensing and eye-safety. However, FMCW usually needs a discrete Fourier transform to resolve the distance from the beating between the transmitted and received signals, leading to limitation on the acquisition rate and higher requirement in the frequency chirping span, speed, and linearity of the FMCW laser. Here we demonstrate an electro-optic comb-enabled absolute distance ranging technology with an acquisition rate up to 10 kHz and a precision better than 100 mm. We show that real-time distance resolving can be achieved with only two adjacent interference peaks among many peaks generated over one modulation frequency chirping period, boosting the acquisition rate of LiDAR system for ambiguity-free distance measurement.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Yifan Qi, Xingyu Jia, Jingyi Wang, Xinlun Cai, Guanhao Wu, and Yang Li "Electro-optic comb-enabled precise ambiguity-free distance measurement with 10-kHz acquisition rate", Proc. SPIE PC12890, Smart Photonic and Optoelectronic Integrated Circuits 2024, PC128900S (9 March 2024); https://doi.org/10.1117/12.3000711
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
;
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Distance measurement
Electro optics
Laser frequency
Modulation frequency
Frequency combs
Frequency modulation
LIDAR
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top