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US 11,619,721 B2Granted
LiDAR and laser measurement techniques
AssigneeAqronos, Inc.
InventorsShu-Wei Huang, Peizhe Li
Life of this patent
Estimating the term…
Abstract
A dual-comb measuring system is provided. The dual comb measuring system may include a bi-directional mode-locked femtosecond laser, a high-speed rotation stage, and a fiber coupler. The high-speed rotation stage may be coupled to a pump diode.
Claims16
A dual-comb measuring system comprising:
- a bidirectional mode-locked femtosecond laser;
- a high-speed rotation stage;
- wherein the high-speed rotation stage is coupled to a pump diode and the high-speed rotation stage includes a fiber rotary joint configured to facilitate the decoupling of a pump fiber from a cavity rotation;
- and
- a fiber coupler.
2 more elements
A dual-sideband frequency-modulated continuous-wave (FMCW) LiDAR system comprising:
- a modulated light generation unit, comprising:
- an electro-optic modulator configured to modulate a continuous wavelength diode laser carrier to simultaneously generate an equal-intensity up-chirped sideband and an equal-intensity down-chirped sideband with the carrier being suppressed;
- a fiber coupler configured to split each sideband into a first split light beam and a second split light beam;
- and
- an optical amplifier configured to generate a boosted light beam from the first split light beam;
- a transceiver unit, configured to receive the boosted light beam, direct the boosted light beam to a region of interest, and receive a received signal reflected from the region of interest;
- and
- a control and processing unit configured to receive the second split light beam and the received signal, and simultaneously determine an object distance and speed of the region of interest based on the second split light beam and the received signal.
5 more elements
Dependencies are inferred from the claim text.