Time of flight lidar employing dual-modulation frequencies switching for optimizing unambiguous range extension and high resolution

D Hanto, H Pratomo, A Rianaris… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Time of flight (ToF) light detection and ranging (Lidar) range finder is widely used in various
applications, such as automotive driving, marine environment surveying, atmospheric …

Spatio-spectral 4D coherent ranging using a flutter-wavelength-swept laser

D Jeong, H Jang, MU Jung, T Jeong, H Kim… - Nature …, 2024 - nature.com
Coherent light detection and ranging (LiDAR), particularly the frequency-modulated
continuous-wave LiDAR, is a robust optical imaging technology for measuring long-range …

Advances and Challenges of Mode-Locked Fiber Lasers

S Yamashita, SY Set - Optics Communications, 2025 - Elsevier
This paper reviews the advances of ultra-short-pulse fiber lasers. First, we will describe the
fundamentals of passively and actively mode-locked fiber lasers, including temporal and …

Distance recovery via swept frequency mixing for data-efficient FMCW LiDAR

N Kim, MU Jung, H Jang, CS Kim - Optics Letters, 2023 - opg.optica.org
We propose a novel, to the best of our knowledge, distance recovery method via swept
frequency mixing for frequency-modulated continuous wave (FMCW) light detection and …

Time domain extremum phase shift laser ranging method and system based on ergodic under-sampling

T Peng, A Ouyang, W Ye, J Song, X Li… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
We have proposed a time-domain extremum phase shift laser ranging method based on
ergodic under-sampling to address the issues of high sampling rate and complex hardware …

Amplitude modulation ranging achieved by self-swee** fiber laser in a short distance

K Wang, Z Wen, W Guo, Y ** fiber laser ranging system was proposed and experimentally studied, which
proved the capability of distance measurement based on the continuous wave self …

Mode-hop** dynamics characteristics in Brillouin fiber swept lasers

H Lu, G Yin, D Li, Z Zhang, T Zhu - Optics & Laser Technology, 2025 - Elsevier
In this paper, a method based on laser coherent detection is proposed to characterize the
dynamic characteristics of mode hop** in Brillouin fiber swept lasers. The mode hop** …

Time-expansion of Pulse Echo Signal Implemented for Laser Ranging System with High-Precision

Y Tu, J Li, H Ruan, Y Deng, L Li, S He… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
This article proposes a pulse laser ranging method based on the correlated sampling time
expansion, which enhances the precision of pulse laser ranging. We introduced an …

Ranging disambiguation of LiDAR using chirped amplitude-modulated phase-shift method

Z Zhang, T Shirahata, R Chen, S Yamashita, SY Set - Optics Express, 2023 - opg.optica.org
Ranging ambiguity is the major challenge in most LiDAR techniques with amplitude
modulation, which limits the performance of range detection due to the tradeoff between the …