{"id":"https://openalex.org/W3040755487","doi":"https://doi.org/10.3390/s20143834","title":"A Novel Method of Measuring Instantaneous Frequency of an Ultrafast Frequency Modulated Continuous-Wave Laser","display_name":"A Novel Method of Measuring Instantaneous Frequency of an Ultrafast Frequency Modulated Continuous-Wave Laser","publication_year":2020,"publication_date":"2020-07-09","ids":{"openalex":"https://openalex.org/W3040755487","doi":"https://doi.org/10.3390/s20143834","mag":"3040755487","pmid":"https://pubmed.ncbi.nlm.nih.gov/32660043"},"language":"en","primary_location":{"id":"doi:10.3390/s20143834","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20143834","pdf_url":"https://www.mdpi.com/1424-8220/20/14/3834/pdf?version=1594294516","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/20/14/3834/pdf?version=1594294516","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5053434584","display_name":"Jiewei Yang","orcid":"https://orcid.org/0000-0001-5264-1393"},"institutions":[{"id":"https://openalex.org/I162868743","display_name":"Tianjin University","ror":"https://ror.org/012tb2g32","country_code":"CN","type":"education","lineage":["https://openalex.org/I162868743"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiewei Yang","raw_affiliation_strings":["Key Laboratory of the Ministry of Education on Optoelectronic Information Technology, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China"],"raw_orcid":"https://orcid.org/0000-0001-5264-1393","affiliations":[{"raw_affiliation_string":"Key Laboratory of the Ministry of Education on Optoelectronic Information Technology, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China","institution_ids":["https://openalex.org/I162868743"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030754680","display_name":"Tianxin Yang","orcid":"https://orcid.org/0000-0002-8495-9344"},"institutions":[{"id":"https://openalex.org/I162868743","display_name":"Tianjin University","ror":"https://ror.org/012tb2g32","country_code":"CN","type":"education","lineage":["https://openalex.org/I162868743"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Tianxin Yang","raw_affiliation_strings":["Key Laboratory of the Ministry of Education on Optoelectronic Information Technology, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Key Laboratory of the Ministry of Education on Optoelectronic Information Technology, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China","institution_ids":["https://openalex.org/I162868743"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005951282","display_name":"Zhaoying Wang","orcid":"https://orcid.org/0000-0002-3608-9508"},"institutions":[{"id":"https://openalex.org/I162868743","display_name":"Tianjin University","ror":"https://ror.org/012tb2g32","country_code":"CN","type":"education","lineage":["https://openalex.org/I162868743"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhaoying Wang","raw_affiliation_strings":["Key Laboratory of the Ministry of Education on Optoelectronic Information Technology, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Key Laboratory of the Ministry of Education on Optoelectronic Information Technology, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China","institution_ids":["https://openalex.org/I162868743"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101419027","display_name":"Dongfang Jia","orcid":null},"institutions":[{"id":"https://openalex.org/I162868743","display_name":"Tianjin University","ror":"https://ror.org/012tb2g32","country_code":"CN","type":"education","lineage":["https://openalex.org/I162868743"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dongfang Jia","raw_affiliation_strings":["Key Laboratory of the Ministry of Education on Optoelectronic Information Technology, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Key Laboratory of the Ministry of Education on Optoelectronic Information Technology, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China","institution_ids":["https://openalex.org/I162868743"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5090903147","display_name":"Chunfeng Ge","orcid":"https://orcid.org/0000-0001-8654-0566"},"institutions":[{"id":"https://openalex.org/I162868743","display_name":"Tianjin University","ror":"https://ror.org/012tb2g32","country_code":"CN","type":"education","lineage":["https://openalex.org/I162868743"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chunfeng Ge","raw_affiliation_strings":["Key Laboratory of the Ministry of Education on Optoelectronic Information Technology, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Key Laboratory of the Ministry of Education on Optoelectronic Information Technology, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China","institution_ids":["https://openalex.org/I162868743"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5030754680"],"corresponding_institution_ids":["https://openalex.org/I162868743"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2673},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2673},"fwci":0.8025,"has_fulltext":true,"cited_by_count":11,"citation_normalized_percentile":{"value":0.69652185,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"20","issue":"14","first_page":"3834","last_page":"3834"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10988","display_name":"Advanced Fiber Laser Technologies","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10988","display_name":"Advanced Fiber Laser Technologies","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11429","display_name":"Semiconductor Lasers and Optical Devices","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10299","display_name":"Photonic and Optical Devices","score":0.9976000189781189,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/continuous-wave","display_name":"Continuous wave","score":0.7069647312164307},{"id":"https://openalex.org/keywords/laser","display_name":"Laser","score":0.6788482069969177},{"id":"https://openalex.org/keywords/sweep-frequency-response-analysis","display_name":"Sweep frequency response analysis","score":0.6362301707267761},{"id":"https://openalex.org/keywords/ultrashort-pulse","display_name":"Ultrashort pulse","score":0.6084936261177063},{"id":"https://openalex.org/keywords/instantaneous-phase","display_name":"Instantaneous phase","score":0.5898102521896362},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.5355128645896912},{"id":"https://openalex.org/keywords/spectrum-analyzer","display_name":"Spectrum analyzer","score":0.5269777774810791},{"id":"https://openalex.org/keywords/lidar","display_name":"Lidar","score":0.5098266005516052},{"id":"https://openalex.org/keywords/frequency-modulation","display_name":"Frequency modulation","score":0.5008938312530518},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.46775293350219727},{"id":"https://openalex.org/keywords/ranging","display_name":"Ranging","score":0.4449644386768341},{"id":"https://openalex.org/keywords/digital-signal-processing","display_name":"Digital signal processing","score":0.4307863712310791},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3399093747138977},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.27567440271377563},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.2588683068752289},{"id":"https://openalex.org/keywords/radio-frequency","display_name":"Radio frequency","score":0.22566282749176025},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.21327635645866394},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.17959743738174438},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.14957240223884583}],"concepts":[{"id":"https://openalex.org/C99568719","wikidata":"https://www.wikidata.org/wiki/Q1129003","display_name":"Continuous wave","level":3,"score":0.7069647312164307},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.6788482069969177},{"id":"https://openalex.org/C37580369","wikidata":"https://www.wikidata.org/wiki/Q7655123","display_name":"Sweep frequency response analysis","level":2,"score":0.6362301707267761},{"id":"https://openalex.org/C178596936","wikidata":"https://www.wikidata.org/wiki/Q844471","display_name":"Ultrashort pulse","level":3,"score":0.6084936261177063},{"id":"https://openalex.org/C137798554","wikidata":"https://www.wikidata.org/wiki/Q6038852","display_name":"Instantaneous phase","level":3,"score":0.5898102521896362},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.5355128645896912},{"id":"https://openalex.org/C158007255","wikidata":"https://www.wikidata.org/wiki/Q1055222","display_name":"Spectrum analyzer","level":2,"score":0.5269777774810791},{"id":"https://openalex.org/C51399673","wikidata":"https://www.wikidata.org/wiki/Q504027","display_name":"Lidar","level":2,"score":0.5098266005516052},{"id":"https://openalex.org/C11930861","wikidata":"https://www.wikidata.org/wiki/Q181417","display_name":"Frequency modulation","level":3,"score":0.5008938312530518},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.46775293350219727},{"id":"https://openalex.org/C115051666","wikidata":"https://www.wikidata.org/wiki/Q6522493","display_name":"Ranging","level":2,"score":0.4449644386768341},{"id":"https://openalex.org/C84462506","wikidata":"https://www.wikidata.org/wiki/Q173142","display_name":"Digital signal processing","level":2,"score":0.4307863712310791},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3399093747138977},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.27567440271377563},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2588683068752289},{"id":"https://openalex.org/C74064498","wikidata":"https://www.wikidata.org/wiki/Q3396184","display_name":"Radio frequency","level":2,"score":0.22566282749176025},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.21327635645866394},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.17959743738174438},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.14957240223884583}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.3390/s20143834","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20143834","pdf_url":"https://www.mdpi.com/1424-8220/20/14/3834/pdf?version=1594294516","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:32660043","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/32660043","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:5753d8d8b7a94c849c615c42d38c5cd3","is_oa":true,"landing_page_url":"https://doaj.org/article/5753d8d8b7a94c849c615c42d38c5cd3","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 20, Iss 14, p 3834 (2020)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/20/14/3834/","is_oa":true,"landing_page_url":"http://dx.doi.org/10.3390/s20143834","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:7412386","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7412386","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s20143834","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20143834","pdf_url":"https://www.mdpi.com/1424-8220/20/14/3834/pdf?version=1594294516","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.46000000834465027}],"awards":[{"id":"https://openalex.org/G5681842792","display_name":null,"funder_award_id":"19JCZDJC32500 and 18JCYBJC16800","funder_id":"https://openalex.org/F4320323993","funder_display_name":"Natural Science Foundation of Tianjin City"},{"id":"https://openalex.org/G8049076177","display_name":null,"funder_award_id":"61975145","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320316520","display_name":"Keysight Technologies","ror":"https://ror.org/02903cd17"},{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320323993","display_name":"Natural Science Foundation of Tianjin City","ror":null}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3040755487.pdf","grobid_xml":"https://content.openalex.org/works/W3040755487.grobid-xml"},"referenced_works_count":31,"referenced_works":["https://openalex.org/W1967402262","https://openalex.org/W1978715391","https://openalex.org/W1991299733","https://openalex.org/W2015978929","https://openalex.org/W2037928928","https://openalex.org/W2040384722","https://openalex.org/W2061586657","https://openalex.org/W2072480369","https://openalex.org/W2074092686","https://openalex.org/W2074133231","https://openalex.org/W2077102730","https://openalex.org/W2112390114","https://openalex.org/W2112814200","https://openalex.org/W2125860093","https://openalex.org/W2144889495","https://openalex.org/W2162269128","https://openalex.org/W2221853554","https://openalex.org/W2267996924","https://openalex.org/W2297740899","https://openalex.org/W2742361312","https://openalex.org/W2766577018","https://openalex.org/W2773410389","https://openalex.org/W2784869896","https://openalex.org/W2794572158","https://openalex.org/W2888177534","https://openalex.org/W2925191964","https://openalex.org/W2964036900","https://openalex.org/W2972380308","https://openalex.org/W2980169513","https://openalex.org/W3015714209","https://openalex.org/W3098740411"],"related_works":["https://openalex.org/W2521670658","https://openalex.org/W2021616674","https://openalex.org/W167203484","https://openalex.org/W2075690439","https://openalex.org/W2392998294","https://openalex.org/W3090990883","https://openalex.org/W3047733170","https://openalex.org/W4254896584","https://openalex.org/W2010071327","https://openalex.org/W2387201694"],"abstract_inverted_index":{"Ultrafast":[0],"linear":[1,15,41,63],"frequency":[2,92,123,185],"modulated":[3],"continuous-wave":[4],"(FMCW)":[5],"lasers":[6],"are":[7,44],"a":[8,57,82,96,101,125,147,151,184],"special":[9],"category":[10],"of":[11,38,50,59,95,124,156,170],"CW":[12,195],"lasers.":[13],"The":[14],"FMCW":[16,42,64,97,126,148],"laser":[17,98,127,149],"is":[18,67,173,189],"the":[19,36,73,77,87,117,121,168,193],"light":[20,28,43],"source":[21],"for":[22,27,35,62,85],"many":[23],"sensing":[24],"applications,":[25],"especially":[26],"detection":[29],"and":[30,46,53,71,93,108,162,178],"ranging":[31],"(LiDAR).":[32],"However,":[33],"systems":[34,75],"generation":[37,74],"high":[39],"quality":[40],"limited":[45],"diverse":[47],"in":[48,76],"terms":[49],"technical":[51],"approaches":[52],"mechanisms.":[54],"Due":[55],"to":[56,69,119,139,144,191],"lack":[58],"characterization":[60],"methods":[61],"lasers,":[65],"it":[66],"difficult":[68],"compare":[70],"judge":[72],"same":[78],"category.":[79],"We":[80,164],"propose":[81],"novel":[83],"scheme":[84],"measuring":[86],"mapping":[88],"relationship":[89],"between":[90],"instantaneous":[91,122],"time":[94],"based":[99],"on":[100],"modified":[102],"coherent":[103],"optical":[104],"spectrum":[105],"analyzer":[106],"(COSA)":[107],"digital":[109],"signal":[110],"processing":[111],"(DSP)":[112],"method.":[113],"Our":[114],"method":[115,143,172],"has":[116],"potential":[118],"measure":[120,146],"at":[128,150],"an":[129],"unlimited":[130],"sweep":[131,154],"rate.":[132],"In":[133],"this":[134,141,171],"paper,":[135],"we":[136],"demonstrate":[137],"how":[138],"use":[140],"new":[142],"precisely":[145],"large":[152],"fast":[153],"rate":[155],"5000":[157],"THz/s":[158],"by":[159],"both":[160],"simulation":[161],"experiments.":[163],"find":[165],"experimentally":[166],"that":[167],"uncertainty":[169],"less":[174],"than":[175],"100":[176],"kHz":[177],"can":[179],"be":[180],"improved":[181],"further":[182],"if":[183],"feedback":[186],"servo":[187],"system":[188],"introduced":[190],"stabilize":[192],"local":[194],"laser.":[196]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":3}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}
