{"id":"https://openalex.org/W2041562002","doi":"https://doi.org/10.1063/1.89759","title":"Fabrication of graded-index fibers without an index dip by chemical vapor deposition method","display_name":"Fabrication of graded-index fibers without an index dip by chemical vapor deposition method","publication_year":1977,"publication_date":"1977-10-15","ids":{"openalex":"https://openalex.org/W2041562002","doi":"https://doi.org/10.1063/1.89759","mag":"2041562002"},"language":"en","primary_location":{"id":"doi:10.1063/1.89759","doi":"https://doi.org/10.1063/1.89759","is_oa":false,"landing_page_url":"https://doi.org/10.1063/1.89759","pdf_url":null,"source":{"id":"https://openalex.org/S105243760","display_name":"Applied Physics Letters","issn_l":"0003-6951","issn":["0003-6951","1077-3118","1520-8842"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-3","ki-jl-1","norway-2","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320257","host_organization_name":"American Institute of Physics","host_organization_lineage":["https://openalex.org/P4310320257"],"host_organization_lineage_names":["American Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Applied Physics Letters","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5072185950","display_name":"Takeshi Akamatsu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takeshi Akamatsu","raw_affiliation_strings":["Fujitsu Laboratories Limited Okubo-cho, Akashi, Area Code 674 Japan Telex (5628)921"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Laboratories Limited Okubo-cho, Akashi, Area Code 674 Japan Telex (5628)921","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5046499169","display_name":"Koji Okamura","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Koji Okamura","raw_affiliation_strings":["Fujitsu Laboratories Limited Okubo-cho, Akashi, Area Code 674 Japan Telex (5628)921"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Laboratories Limited Okubo-cho, Akashi, Area Code 674 Japan Telex (5628)921","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101113849","display_name":"Y\u014dichi Ueda","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yoichi Ueda","raw_affiliation_strings":["Fujitsu Laboratories Limited Okubo-cho, Akashi, Area Code 674 Japan Telex (5628)921"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Laboratories Limited Okubo-cho, Akashi, Area Code 674 Japan Telex (5628)921","institution_ids":["https://openalex.org/I2252096349"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I2252096349"],"apc_list":null,"apc_paid":null,"fwci":1.2718,"has_fulltext":false,"cited_by_count":9,"citation_normalized_percentile":{"value":0.76725573,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"31","issue":"8","first_page":"515","last_page":"517"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10232","display_name":"Optical Network Technologies","score":0.5313000082969666,"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"}},"topics":[{"id":"https://openalex.org/T10232","display_name":"Optical Network Technologies","score":0.5313000082969666,"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/T10544","display_name":"Glass properties and applications","score":0.33079999685287476,"subfield":{"id":"https://openalex.org/subfields/2503","display_name":"Ceramics and Composites"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10846","display_name":"Photonic Crystal and Fiber Optics","score":0.10080000013113022,"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/graded-index-fiber","display_name":"graded-index fiber","score":0.953000009059906},{"id":"https://openalex.org/keywords/chemical-vapor-deposition","display_name":"chemical vapor deposition","score":0.746999979019165},{"id":"https://openalex.org/keywords/bandwidth","display_name":"bandwidth","score":0.503000020980835},{"id":"https://openalex.org/keywords/coupling-efficiency","display_name":"coupling efficiency","score":0.6790000200271606},{"id":"https://openalex.org/keywords/fiber-fabrication","display_name":"fiber fabrication","score":0.5460000038146973}],"concepts":[{"id":"https://openalex.org/C136525101","wikidata":"https://www.wikidata.org/wiki/Q5428139","display_name":"Fabrication","level":3,"score":0.627587080001831},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.5737096667289734},{"id":"https://openalex.org/C57410435","wikidata":"https://www.wikidata.org/wiki/Q505668","display_name":"Chemical vapor deposition","level":2,"score":0.5401811003684998},{"id":"https://openalex.org/C2164484","wikidata":"https://www.wikidata.org/wiki/Q5170150","display_name":"Core (optical fiber)","level":2,"score":0.5270282030105591},{"id":"https://openalex.org/C194232370","wikidata":"https://www.wikidata.org/wiki/Q162","display_name":"Optical fiber","level":2,"score":0.5114747285842896},{"id":"https://openalex.org/C42067758","wikidata":"https://www.wikidata.org/wiki/Q174102","display_name":"Refractive index","level":2,"score":0.4586946368217468},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.4353962540626526},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.4225804805755615},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.35888150334358215},{"id":"https://openalex.org/C199289684","wikidata":"https://www.wikidata.org/wiki/Q83353","display_name":"Mineralogy","level":1,"score":0.33190828561782837},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.3035067915916443},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.27174776792526245},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.11925339698791504},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.08951780200004578},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1063/1.89759","doi":"https://doi.org/10.1063/1.89759","is_oa":false,"landing_page_url":"https://doi.org/10.1063/1.89759","pdf_url":null,"source":{"id":"https://openalex.org/S105243760","display_name":"Applied Physics Letters","issn_l":"0003-6951","issn":["0003-6951","1077-3118","1520-8842"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-3","ki-jl-1","norway-2","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320257","host_organization_name":"American Institute of Physics","host_organization_lineage":["https://openalex.org/P4310320257"],"host_organization_lineage_names":["American Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Applied Physics Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":1,"referenced_works":["https://openalex.org/W1995259870"],"related_works":["https://openalex.org/W1985650250","https://openalex.org/W2080179617","https://openalex.org/W1974980325","https://openalex.org/W1986916605","https://openalex.org/W1995259870","https://openalex.org/W2997578657","https://openalex.org/W4407027134","https://openalex.org/W2324562538","https://openalex.org/W1983639366","https://openalex.org/W2268354972"],"abstract_inverted_index":{"When":[0],"optical":[1,26],"fibers":[2,66],"are":[3],"prepared":[4,70],"by":[5,71,89],"the":[6,15,22,32,39,52,62,86,92,98],"(CVD)":[7],"technique,":[8],"an":[9],"index":[10,19,36,93,99],"dip":[11,20,37,68,100],"often":[12],"appears":[13],"at":[14],"core":[16,40],"center.":[17],"The":[18,64,74],"reduces":[21,31],"coupling":[23,87],"efficiency":[24,88],"to":[25,80],"sources":[27],"and":[28,59,85,97],"also":[29],"it":[30],"transmission":[33],"bandwidth.":[34],"This":[35],"in":[38],"with":[41,48],"germania-doped":[42],"silica":[43],"could":[44],"be":[45],"eliminated":[46],"successfully":[47],"a":[49],"flow":[50],"of":[51,54,57],"vapors":[53],"controlled":[55,96],"proportion":[56],"GeCl4":[58],"O2":[60],"during":[61],"collapse.":[63],"graded-index":[65],"without":[67],"were":[69],"this":[72],"technique.":[73],"bandwidth":[75],"was":[76,95,101],"increased":[77],"from":[78],"500":[79],"800":[81],"MHz":[82],":":[83],"km":[84],"20%":[90],"when":[91],"profile":[94],"eliminated.":[102]},"counts_by_year":[{"year":2020,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2016-06-24T00:00:00"}