{"id":"https://openalex.org/A5013829322","orcid":null,"observed_orcids":[],"display_name":"Kristian E. Stubkjaer","raw_author_names":["K. E. STUBKJAER","K. E. Stubkjaer","K. Stubkjaer","K.E Stubkjaer","K.E. Stubkjaer","Kristian E. Stubkjaer","Kristian Stubkjaer","Stubkj\u00e6r, Kristian","Stubkj\u00e6r, Kristian Elmholdt"],"full_name":"Kristian E. Stubkjaer","works_count":194,"cited_by_count":4975,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":34,"i10_index":67},"ids":{"openalex":"https://openalex.org/A5013829322","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I114531698","ror":"https://ror.org/0112mx960","display_name":"Tokyo Institute of Technology","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698","https://openalex.org/I4400009020"]},"years":[1981,1980]},{"institution":{"id":"https://openalex.org/I1322087612","ror":"https://ror.org/00c5mwp75","display_name":"Alcatel Lucent (Germany)","country_code":"DE","type":"company","lineage":["https://openalex.org/I1322087612","https://openalex.org/I2738502077","https://openalex.org/I4210159457"]},"years":[2002]},{"institution":{"id":"https://openalex.org/I4210114115","ror":"https://ror.org/0265w5591","display_name":"IBM Research - Thomas J. Watson Research Center","country_code":"US","type":"facility","lineage":["https://openalex.org/I1341412227","https://openalex.org/I4210114115"]},"years":[1984,1983]},{"institution":{"id":"https://openalex.org/I96673099","ror":"https://ror.org/04qtj9h94","display_name":"Technical University of Denmark","country_code":"DK","type":"education","lineage":["https://openalex.org/I96673099"]},"years":[2008,2005,2004,2003,2002,2000,1999,1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988,1987,1984,1981,1980,1979]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10232","display_name":"Optical Network Technologies","count":146,"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/T11429","display_name":"Semiconductor Lasers and Optical Devices","count":133,"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/T10767","display_name":"Advanced Photonic Communication Systems","count":117,"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","count":69,"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/T10847","display_name":"Advanced Optical Network Technologies","count":48,"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"}}],"topic_share":[{"id":"https://openalex.org/T10232","display_name":"Optical Network Technologies","value":0.0005618,"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/T10767","display_name":"Advanced Photonic Communication Systems","value":0.0005585,"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/T11429","display_name":"Semiconductor Lasers and Optical Devices","value":0.0003336,"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/T10847","display_name":"Advanced Optical Network Technologies","value":0.0003282,"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","value":0.000226,"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"}}],"x_concepts":[{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.8985528945922852},{"id":"520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","score":0.7503905892372131},{"id":"49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","score":0.7256855964660645},{"id":"120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","score":0.7147440910339355},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.5435100197792053}],"counts_by_year":[{"year":1979,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1980,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1981,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1984,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1989,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1990,"works_count":6,"oa_works_count":1,"cited_by_count":0},{"year":1991,"works_count":10,"oa_works_count":4,"cited_by_count":0},{"year":1992,"works_count":14,"oa_works_count":6,"cited_by_count":0},{"year":1993,"works_count":17,"oa_works_count":4,"cited_by_count":0},{"year":1994,"works_count":14,"oa_works_count":5,"cited_by_count":0},{"year":1995,"works_count":9,"oa_works_count":1,"cited_by_count":0},{"year":1996,"works_count":24,"oa_works_count":6,"cited_by_count":0},{"year":1997,"works_count":15,"oa_works_count":3,"cited_by_count":0},{"year":1998,"works_count":18,"oa_works_count":4,"cited_by_count":0},{"year":1999,"works_count":8,"oa_works_count":1,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":24,"oa_works_count":22,"cited_by_count":0},{"year":2003,"works_count":5,"oa_works_count":4,"cited_by_count":0},{"year":2004,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2005,"works_count":8,"oa_works_count":5,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":111},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":104},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":93},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":68},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":70},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":68},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":64},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":67},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":49},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":69},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":47},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":59},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":54},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":29},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":27}],"display_name_alternatives":["K. E. STUBKJAER","K. E. Stubkjaer","K. Stubkjaer","K.E Stubkjaer","K.E. Stubkjaer","Kristian E. Stubkjaer","Kristian Stubkjaer","Stubkj\u00e6r, Kristian","Stubkj\u00e6r, Kristian Elmholdt"],"block_key":"k stubkjaer","works_api_url":"https://api.openalex.org/works?filter=author.id:A5013829322","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}
