Three-Dimensional Imaging by Frequency-Comb Spectral Interferometry

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 th...

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Main Authors: Haihan Zhao, Ziqiang Zhang, Xinyang Xu, Haoyun Zhang, Jingsheng Zhai, Hanzhong Wu
Format: Article
Language:English
Published: MDPI AG 2020-03-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/6/1743
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author Haihan Zhao
Ziqiang Zhang
Xinyang Xu
Haoyun Zhang
Jingsheng Zhai
Hanzhong Wu
author_facet Haihan Zhao
Ziqiang Zhang
Xinyang Xu
Haoyun Zhang
Jingsheng Zhai
Hanzhong Wu
author_sort Haihan Zhao
collection DOAJ
description 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.
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spelling doaj.art-abfb18b0546f4c1a8a4cbbe22189cddf2022-12-22T03:18:33ZengMDPI AGSensors1424-82202020-03-01206174310.3390/s20061743s20061743Three-Dimensional Imaging by Frequency-Comb Spectral InterferometryHaihan Zhao0Ziqiang Zhang1Xinyang Xu2Haoyun Zhang3Jingsheng Zhai4Hanzhong Wu5School of Marine Science and Technology, Tianjin University, Tianjin 300072, ChinaBeijing Aerospace Xinfeng Mechanical Equipment Co., LTD, Beijing 100854, ChinaSchool of Marine Science and Technology, Tianjin University, Tianjin 300072, ChinaSchool of Marine Science and Technology, Tianjin University, Tianjin 300072, ChinaSchool of Marine Science and Technology, Tianjin University, Tianjin 300072, ChinaSchool of Marine Science and Technology, Tianjin University, Tianjin 300072, ChinaIn 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.https://www.mdpi.com/1424-8220/20/6/1743frequency combspectral interferometrymode-locked laser3d imaging
spellingShingle Haihan Zhao
Ziqiang Zhang
Xinyang Xu
Haoyun Zhang
Jingsheng Zhai
Hanzhong Wu
Three-Dimensional Imaging by Frequency-Comb Spectral Interferometry
Sensors
frequency comb
spectral interferometry
mode-locked laser
3d imaging
title Three-Dimensional Imaging by Frequency-Comb Spectral Interferometry
title_full Three-Dimensional Imaging by Frequency-Comb Spectral Interferometry
title_fullStr Three-Dimensional Imaging by Frequency-Comb Spectral Interferometry
title_full_unstemmed Three-Dimensional Imaging by Frequency-Comb Spectral Interferometry
title_short Three-Dimensional Imaging by Frequency-Comb Spectral Interferometry
title_sort three dimensional imaging by frequency comb spectral interferometry
topic frequency comb
spectral interferometry
mode-locked laser
3d imaging
url https://www.mdpi.com/1424-8220/20/6/1743
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AT ziqiangzhang threedimensionalimagingbyfrequencycombspectralinterferometry
AT xinyangxu threedimensionalimagingbyfrequencycombspectralinterferometry
AT haoyunzhang threedimensionalimagingbyfrequencycombspectralinterferometry
AT jingshengzhai threedimensionalimagingbyfrequencycombspectralinterferometry
AT hanzhongwu threedimensionalimagingbyfrequencycombspectralinterferometry