Spectrally Scanning LiDAR Based on Wide-Angle Agile Diffractive Beam Steering
Spectral scan, or beam steering by only wavelength tuning enables inertia-less fast-scanning LiDAR, while the field of view is fundamentally limited by the total available wavelength range and the dispersion ability of common gratings. Here, we propose to relieve the restriction by combining a diffr...
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| Veröffentlicht in: | IEEE photonics technology letters 2022-08, Vol.34 (16), p.850-853 |
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| container_title | IEEE photonics technology letters |
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| creator | Zang, Zihan Xu, Yunpeng Wang, Haoqiang Li, Zhi Han, Yanjun Li, Hongtao Fu, H. Y. Luo, Yi |
| description | Spectral scan, or beam steering by only wavelength tuning enables inertia-less fast-scanning LiDAR, while the field of view is fundamentally limited by the total available wavelength range and the dispersion ability of common gratings. Here, we propose to relieve the restriction by combining a diffraction grating and a low-cost diffractive element, which enables wide-angle two-dimensional beam steering. An FoV far beyond the reach of other spectral scan methods can be achieved. Several diffractive elements samples are fabricated to demonstrate spectrally scanning field of views of 7.7^{\circ } \times 10^{\circ } and 7.7^{\circ } \times 29^{\circ } from an 100-nm wavelength tuning range. Also, to show the potential to further extend the spectral scan range, blazed diffractive elements are fabricated with high diffraction efficiency, which corresponds to a spectral scan range up to 40.3°. Based on the structure, a solid-state coherent LiDAR system is built. Three-dimensional imaging with mm-level range resolution is demonstrated. |
| doi_str_mv | 10.1109/LPT.2022.3190072 |
| format | Article |
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Y. ; Luo, Yi</creator><creatorcontrib>Zang, Zihan ; Xu, Yunpeng ; Wang, Haoqiang ; Li, Zhi ; Han, Yanjun ; Li, Hongtao ; Fu, H. Y. ; Luo, Yi</creatorcontrib><description><![CDATA[Spectral scan, or beam steering by only wavelength tuning enables inertia-less fast-scanning LiDAR, while the field of view is fundamentally limited by the total available wavelength range and the dispersion ability of common gratings. Here, we propose to relieve the restriction by combining a diffraction grating and a low-cost diffractive element, which enables wide-angle two-dimensional beam steering. An FoV far beyond the reach of other spectral scan methods can be achieved. Several diffractive elements samples are fabricated to demonstrate spectrally scanning field of views of <inline-formula> <tex-math notation="LaTeX">7.7^{\circ } \times 10^{\circ } </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">7.7^{\circ } \times 29^{\circ } </tex-math></inline-formula> from an 100-nm wavelength tuning range. Also, to show the potential to further extend the spectral scan range, blazed diffractive elements are fabricated with high diffraction efficiency, which corresponds to a spectral scan range up to 40.3°. Based on the structure, a solid-state coherent LiDAR system is built. Three-dimensional imaging with mm-level range resolution is demonstrated.]]></description><identifier>ISSN: 1041-1135</identifier><identifier>EISSN: 1941-0174</identifier><identifier>DOI: 10.1109/LPT.2022.3190072</identifier><identifier>CODEN: IPTLEL</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Beam steering ; Diffraction ; Diffraction efficiency ; Diffraction gratings ; diffractive optical element ; Gratings ; Gratings (spectra) ; Laser beams ; Laser radar ; Lenses ; LiDAR ; Scanning ; spectral scan ; Tuning</subject><ispartof>IEEE photonics technology letters, 2022-08, Vol.34 (16), p.850-853</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2022</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c291t-e68ff56ad1478151e7c7dc3194da883846f2261a9bffb48bc1035d7f8ae502a33</citedby><cites>FETCH-LOGICAL-c291t-e68ff56ad1478151e7c7dc3194da883846f2261a9bffb48bc1035d7f8ae502a33</cites><orcidid>0000-0002-5015-9330 ; 0000-0002-0230-9584 ; 0000-0002-4276-0011</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9826837$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9826837$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Zang, Zihan</creatorcontrib><creatorcontrib>Xu, Yunpeng</creatorcontrib><creatorcontrib>Wang, Haoqiang</creatorcontrib><creatorcontrib>Li, Zhi</creatorcontrib><creatorcontrib>Han, Yanjun</creatorcontrib><creatorcontrib>Li, Hongtao</creatorcontrib><creatorcontrib>Fu, H. Y.</creatorcontrib><creatorcontrib>Luo, Yi</creatorcontrib><title>Spectrally Scanning LiDAR Based on Wide-Angle Agile Diffractive Beam Steering</title><title>IEEE photonics technology letters</title><addtitle>LPT</addtitle><description><![CDATA[Spectral scan, or beam steering by only wavelength tuning enables inertia-less fast-scanning LiDAR, while the field of view is fundamentally limited by the total available wavelength range and the dispersion ability of common gratings. Here, we propose to relieve the restriction by combining a diffraction grating and a low-cost diffractive element, which enables wide-angle two-dimensional beam steering. An FoV far beyond the reach of other spectral scan methods can be achieved. Several diffractive elements samples are fabricated to demonstrate spectrally scanning field of views of <inline-formula> <tex-math notation="LaTeX">7.7^{\circ } \times 10^{\circ } </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">7.7^{\circ } \times 29^{\circ } </tex-math></inline-formula> from an 100-nm wavelength tuning range. Also, to show the potential to further extend the spectral scan range, blazed diffractive elements are fabricated with high diffraction efficiency, which corresponds to a spectral scan range up to 40.3°. Based on the structure, a solid-state coherent LiDAR system is built. Three-dimensional imaging with mm-level range resolution is demonstrated.]]></description><subject>Beam steering</subject><subject>Diffraction</subject><subject>Diffraction efficiency</subject><subject>Diffraction gratings</subject><subject>diffractive optical element</subject><subject>Gratings</subject><subject>Gratings (spectra)</subject><subject>Laser beams</subject><subject>Laser radar</subject><subject>Lenses</subject><subject>LiDAR</subject><subject>Scanning</subject><subject>spectral scan</subject><subject>Tuning</subject><issn>1041-1135</issn><issn>1941-0174</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kM1LAzEQxYMoWKt3wUvA89ZMks1mj9vWL1hRbMVjSHcnJWW7rdmt0P_elBYvM-_w3szjR8gtsBEAyx_Kj_mIM85HAnLGMn5GBpBLSBhk8jxqFjWASC_JVdetGAOZCjkgb7MtVn2wTbOns8q2rW-XtPTT4pOObYc13bT029eYFO2yQVosfZxT71ywVe9_kY7RrumsRwwxeU0unG06vDntIfl6epxPXpLy_fl1UpRJxXPoE1TauVTZGmSmIQXMqqyuYnFZW62FlspxrsDmC-cWUi8qYCKtM6ctpoxbIYbk_nh3GzY_O-x6s9rsQhtfGq7yLFWKaRld7OiqwqbrAjqzDX5tw94AMwdoJkIzB2jmBC1G7o4Rj4j_9lxzpUUm_gBQ42ZX</recordid><startdate>20220815</startdate><enddate>20220815</enddate><creator>Zang, Zihan</creator><creator>Xu, Yunpeng</creator><creator>Wang, Haoqiang</creator><creator>Li, Zhi</creator><creator>Han, Yanjun</creator><creator>Li, Hongtao</creator><creator>Fu, H. Y.</creator><creator>Luo, Yi</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-5015-9330</orcidid><orcidid>https://orcid.org/0000-0002-0230-9584</orcidid><orcidid>https://orcid.org/0000-0002-4276-0011</orcidid></search><sort><creationdate>20220815</creationdate><title>Spectrally Scanning LiDAR Based on Wide-Angle Agile Diffractive Beam Steering</title><author>Zang, Zihan ; Xu, Yunpeng ; Wang, Haoqiang ; Li, Zhi ; Han, Yanjun ; Li, Hongtao ; Fu, H. Y. ; Luo, Yi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c291t-e68ff56ad1478151e7c7dc3194da883846f2261a9bffb48bc1035d7f8ae502a33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Beam steering</topic><topic>Diffraction</topic><topic>Diffraction efficiency</topic><topic>Diffraction gratings</topic><topic>diffractive optical element</topic><topic>Gratings</topic><topic>Gratings (spectra)</topic><topic>Laser beams</topic><topic>Laser radar</topic><topic>Lenses</topic><topic>LiDAR</topic><topic>Scanning</topic><topic>spectral scan</topic><topic>Tuning</topic><toplevel>online_resources</toplevel><creatorcontrib>Zang, Zihan</creatorcontrib><creatorcontrib>Xu, Yunpeng</creatorcontrib><creatorcontrib>Wang, Haoqiang</creatorcontrib><creatorcontrib>Li, Zhi</creatorcontrib><creatorcontrib>Han, Yanjun</creatorcontrib><creatorcontrib>Li, Hongtao</creatorcontrib><creatorcontrib>Fu, H. Y.</creatorcontrib><creatorcontrib>Luo, Yi</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE photonics technology letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Zang, Zihan</au><au>Xu, Yunpeng</au><au>Wang, Haoqiang</au><au>Li, Zhi</au><au>Han, Yanjun</au><au>Li, Hongtao</au><au>Fu, H. Y.</au><au>Luo, Yi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spectrally Scanning LiDAR Based on Wide-Angle Agile Diffractive Beam Steering</atitle><jtitle>IEEE photonics technology letters</jtitle><stitle>LPT</stitle><date>2022-08-15</date><risdate>2022</risdate><volume>34</volume><issue>16</issue><spage>850</spage><epage>853</epage><pages>850-853</pages><issn>1041-1135</issn><eissn>1941-0174</eissn><coden>IPTLEL</coden><abstract><![CDATA[Spectral scan, or beam steering by only wavelength tuning enables inertia-less fast-scanning LiDAR, while the field of view is fundamentally limited by the total available wavelength range and the dispersion ability of common gratings. Here, we propose to relieve the restriction by combining a diffraction grating and a low-cost diffractive element, which enables wide-angle two-dimensional beam steering. An FoV far beyond the reach of other spectral scan methods can be achieved. Several diffractive elements samples are fabricated to demonstrate spectrally scanning field of views of <inline-formula> <tex-math notation="LaTeX">7.7^{\circ } \times 10^{\circ } </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">7.7^{\circ } \times 29^{\circ } </tex-math></inline-formula> from an 100-nm wavelength tuning range. Also, to show the potential to further extend the spectral scan range, blazed diffractive elements are fabricated with high diffraction efficiency, which corresponds to a spectral scan range up to 40.3°. Based on the structure, a solid-state coherent LiDAR system is built. Three-dimensional imaging with mm-level range resolution is demonstrated.]]></abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/LPT.2022.3190072</doi><tpages>4</tpages><orcidid>https://orcid.org/0000-0002-5015-9330</orcidid><orcidid>https://orcid.org/0000-0002-0230-9584</orcidid><orcidid>https://orcid.org/0000-0002-4276-0011</orcidid></addata></record> |
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| subjects | Beam steering Diffraction Diffraction efficiency Diffraction gratings diffractive optical element Gratings Gratings (spectra) Laser beams Laser radar Lenses LiDAR Scanning spectral scan Tuning |
| title | Spectrally Scanning LiDAR Based on Wide-Angle Agile Diffractive Beam Steering |
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