Next Article in Journal
An Efficient Attribute-Based Access Control (ABAC) Policy Retrieval Method Based on Attribute and Value Levels in Multimedia Networks
Next Article in Special Issue
FMCW Laser Fuze Multiple Scattering Model and Accurate Fixed-Distance Algorithm in a Smoke Environment
Previous Article in Journal
Development of a Flex and Stretchy Conductive Cotton Fabric Via Flat Screen Printing of PEDOT:PSS/PDMS Conductive Polymer Composite
Previous Article in Special Issue
Scene Acquisition with Multiple 2D and 3D Optical Sensors: A PSO-Based Visibility Optimization
Open AccessLetter

Three-Dimensional Imaging by Frequency-Comb Spectral Interferometry

School of Marine Science and Technology, Tianjin University, Tianjin 300072, China
Beijing Aerospace Xinfeng Mechanical Equipment Co., LTD, Beijing 100854, China
Author to whom correspondence should be addressed.
Sensors 2020, 20(6), 1743;
Received: 22 February 2020 / Revised: 18 March 2020 / Accepted: 18 March 2020 / Published: 20 March 2020
(This article belongs to the Special Issue Development and Applications of Optical Sensing)
In this paper, we demonstrate a three-dimensional imaging system based on the laser frequency comb. We develop a compact, all-fiber mode-locked laser at 1 μm, whose repetition frequency can be tightly synchronized to the external frequency reference. The mode-locked state is achieved via the saturable absorber mirror in a linear cavity, and the laser output power can be amplified from 4 mW to 150 mW after a Yb-doped fiber amplifier. Three-dimensional imaging is realized via the spectral interferometry with the aid of an equal-arm Michelson interferometer. Compared with the reference values, the measurement results show the difference can be below 4 μm. Our system could provide a pathway to the real industry applications in future. View Full-Text
Keywords: frequency comb; spectral interferometry; mode-locked laser; 3D imaging frequency comb; spectral interferometry; mode-locked laser; 3D imaging
Show Figures

Figure 1

MDPI and ACS Style

Zhao, H.; Zhang, Z.; Xu, X.; Zhang, H.; Zhai, J.; Wu, H. Three-Dimensional Imaging by Frequency-Comb Spectral Interferometry. Sensors 2020, 20, 1743.

AMA Style

Zhao H, Zhang Z, Xu X, Zhang H, Zhai J, Wu H. Three-Dimensional Imaging by Frequency-Comb Spectral Interferometry. Sensors. 2020; 20(6):1743.

Chicago/Turabian Style

Zhao, Haihan; Zhang, Ziqiang; Xu, Xinyang; Zhang, Haoyun; Zhai, Jingsheng; Wu, Hanzhong. 2020. "Three-Dimensional Imaging by Frequency-Comb Spectral Interferometry" Sensors 20, no. 6: 1743.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Search more from Scilit
Back to TopTop