{"id":"https://openalex.org/W4417053289","doi":"https://doi.org/10.1109/ecoc66593.2025.11263226","title":"Directly Modulated $1.55 \\ \\mu\\text{m}$-Wavelength Photonic-Crystal Surface-Emitting Lasers for Free-Space Optical Communication","display_name":"Directly Modulated $1.55 \\ \\mu\\text{m}$-Wavelength Photonic-Crystal Surface-Emitting Lasers for Free-Space Optical Communication","publication_year":2025,"publication_date":"2025-09-28","ids":{"openalex":"https://openalex.org/W4417053289","doi":"https://doi.org/10.1109/ecoc66593.2025.11263226"},"language":null,"primary_location":{"id":"doi:10.1109/ecoc66593.2025.11263226","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ecoc66593.2025.11263226","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 European Conference on Optical Communications (ECOC)","raw_type":"proceedings-article"},"type":"article","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/A5108476616","display_name":"Takeshi Aoki","orcid":"https://orcid.org/0000-0001-9194-2623"},"institutions":[{"id":"https://openalex.org/I4210166210","display_name":"Sumitomo Electric Industries (Japan)","ror":"https://ror.org/05rnkb382","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210166210"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Takeshi Aoki","raw_affiliation_strings":["Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588"],"affiliations":[{"raw_affiliation_string":"Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588","institution_ids":["https://openalex.org/I4210166210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091906919","display_name":"Shota Ishimura","orcid":null},"institutions":[{"id":"https://openalex.org/I4210164495","display_name":"KDDI Research (Japan)","ror":"https://ror.org/05qsqt662","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210164495"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shota Ishimura","raw_affiliation_strings":["KDDI Research, Inc.,Saitama,Japan,356-8502"],"affiliations":[{"raw_affiliation_string":"KDDI Research, Inc.,Saitama,Japan,356-8502","institution_ids":["https://openalex.org/I4210164495"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5068179878","display_name":"Takuya Inoue","orcid":"https://orcid.org/0000-0002-8206-8206"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takuya Inoue","raw_affiliation_strings":["Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510"],"affiliations":[{"raw_affiliation_string":"Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008253119","display_name":"Hiroyuki Yoshinaga","orcid":"https://orcid.org/0000-0001-5153-4473"},"institutions":[{"id":"https://openalex.org/I4210166210","display_name":"Sumitomo Electric Industries (Japan)","ror":"https://ror.org/05rnkb382","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210166210"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroyuki Yoshinaga","raw_affiliation_strings":["Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588"],"affiliations":[{"raw_affiliation_string":"Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588","institution_ids":["https://openalex.org/I4210166210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001414021","display_name":"Makoto Ogasawara","orcid":"https://orcid.org/0009-0002-5180-6357"},"institutions":[{"id":"https://openalex.org/I4210166210","display_name":"Sumitomo Electric Industries (Japan)","ror":"https://ror.org/05rnkb382","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210166210"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Makoto Ogasawara","raw_affiliation_strings":["Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588"],"affiliations":[{"raw_affiliation_string":"Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588","institution_ids":["https://openalex.org/I4210166210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012350748","display_name":"Yuhki Itoh","orcid":"https://orcid.org/0000-0001-6271-2263"},"institutions":[{"id":"https://openalex.org/I4210166210","display_name":"Sumitomo Electric Industries (Japan)","ror":"https://ror.org/05rnkb382","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210166210"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yuhki Itoh","raw_affiliation_strings":["Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588"],"affiliations":[{"raw_affiliation_string":"Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588","institution_ids":["https://openalex.org/I4210166210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111954564","display_name":"Kosuke Fujii","orcid":null},"institutions":[{"id":"https://openalex.org/I4210166210","display_name":"Sumitomo Electric Industries (Japan)","ror":"https://ror.org/05rnkb382","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210166210"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kosuke Fujii","raw_affiliation_strings":["Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588"],"affiliations":[{"raw_affiliation_string":"Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588","institution_ids":["https://openalex.org/I4210166210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059150802","display_name":"Yusuke Sawada","orcid":"https://orcid.org/0000-0001-6408-4651"},"institutions":[{"id":"https://openalex.org/I4210166210","display_name":"Sumitomo Electric Industries (Japan)","ror":"https://ror.org/05rnkb382","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210166210"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yusuke Sawada","raw_affiliation_strings":["Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588"],"affiliations":[{"raw_affiliation_string":"Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588","institution_ids":["https://openalex.org/I4210166210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056988797","display_name":"Shun Kimura","orcid":"https://orcid.org/0000-0002-3481-2301"},"institutions":[{"id":"https://openalex.org/I4210166210","display_name":"Sumitomo Electric Industries (Japan)","ror":"https://ror.org/05rnkb382","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210166210"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shun Kimura","raw_affiliation_strings":["Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588"],"affiliations":[{"raw_affiliation_string":"Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588","institution_ids":["https://openalex.org/I4210166210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080771084","display_name":"Naoki Fujiwara","orcid":"https://orcid.org/0000-0003-2858-6878"},"institutions":[{"id":"https://openalex.org/I4210166210","display_name":"Sumitomo Electric Industries (Japan)","ror":"https://ror.org/05rnkb382","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210166210"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Naoki Fujiwara","raw_affiliation_strings":["Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588"],"affiliations":[{"raw_affiliation_string":"Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588","institution_ids":["https://openalex.org/I4210166210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101725472","display_name":"Hideki Yagi","orcid":"https://orcid.org/0000-0002-4730-7902"},"institutions":[{"id":"https://openalex.org/I4210166210","display_name":"Sumitomo Electric Industries (Japan)","ror":"https://ror.org/05rnkb382","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210166210"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hideki Yagi","raw_affiliation_strings":["Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588"],"affiliations":[{"raw_affiliation_string":"Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588","institution_ids":["https://openalex.org/I4210166210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053918527","display_name":"Masaki Yanagisawa","orcid":"https://orcid.org/0000-0003-1449-987X"},"institutions":[{"id":"https://openalex.org/I4210166210","display_name":"Sumitomo Electric Industries (Japan)","ror":"https://ror.org/05rnkb382","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210166210"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masaki Yanagisawa","raw_affiliation_strings":["Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588"],"affiliations":[{"raw_affiliation_string":"Sumitomo Electric Industries, Ltd.,Yokohama,Japan,244-8588","institution_ids":["https://openalex.org/I4210166210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083208101","display_name":"Hidenori Takahashi","orcid":"https://orcid.org/0000-0002-7116-9415"},"institutions":[{"id":"https://openalex.org/I4210164495","display_name":"KDDI Research (Japan)","ror":"https://ror.org/05qsqt662","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210164495"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hidenori Takahashi","raw_affiliation_strings":["KDDI Research, Inc.,Saitama,Japan,356-8502"],"affiliations":[{"raw_affiliation_string":"KDDI Research, Inc.,Saitama,Japan,356-8502","institution_ids":["https://openalex.org/I4210164495"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086292750","display_name":"Takehiro Tsuritani","orcid":"https://orcid.org/0000-0002-5209-9650"},"institutions":[{"id":"https://openalex.org/I4210164495","display_name":"KDDI Research (Japan)","ror":"https://ror.org/05qsqt662","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210164495"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takehiro Tsuritani","raw_affiliation_strings":["KDDI Research, Inc.,Saitama,Japan,356-8502"],"affiliations":[{"raw_affiliation_string":"KDDI Research, Inc.,Saitama,Japan,356-8502","institution_ids":["https://openalex.org/I4210164495"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017949529","display_name":"Ryohei Morita","orcid":"https://orcid.org/0009-0008-6612-3237"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ryohei Morita","raw_affiliation_strings":["Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510"],"affiliations":[{"raw_affiliation_string":"Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058351875","display_name":"Masahiro Yoshida","orcid":"https://orcid.org/0000-0003-0653-8189"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masahiro Yoshida","raw_affiliation_strings":["Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510"],"affiliations":[{"raw_affiliation_string":"Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007254034","display_name":"Menaka De Zoysa","orcid":"https://orcid.org/0000-0002-1246-2750"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Menaka De Zoysa","raw_affiliation_strings":["Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510"],"affiliations":[{"raw_affiliation_string":"Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011204734","display_name":"Kenji Ishizaki","orcid":"https://orcid.org/0000-0001-7199-8523"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kenji Ishizaki","raw_affiliation_strings":["Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510"],"affiliations":[{"raw_affiliation_string":"Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5005043325","display_name":"Susumu Noda","orcid":"https://orcid.org/0000-0003-4302-0549"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Susumu Noda","raw_affiliation_strings":["Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510"],"affiliations":[{"raw_affiliation_string":"Kyoto University,Department of Electronics Science and Engineering,Kyoto,Japan,615-8510","institution_ids":["https://openalex.org/I22299242"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":19,"corresponding_author_ids":["https://openalex.org/A5108476616"],"corresponding_institution_ids":["https://openalex.org/I4210166210"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.38061944,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"4"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11429","display_name":"Semiconductor Lasers and Optical Devices","score":0.36160001158714294,"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/T11429","display_name":"Semiconductor Lasers and Optical Devices","score":0.36160001158714294,"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/T10666","display_name":"Photonic Crystals and Applications","score":0.16850000619888306,"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/T10299","display_name":"Photonic and Optical Devices","score":0.1492999941110611,"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/optical-communication","display_name":"Optical communication","score":0.6230999827384949},{"id":"https://openalex.org/keywords/modulation","display_name":"Modulation (music)","score":0.5332000255584717},{"id":"https://openalex.org/keywords/laser","display_name":"Laser","score":0.490200012922287},{"id":"https://openalex.org/keywords/intensity-modulation","display_name":"Intensity modulation","score":0.46470001339912415},{"id":"https://openalex.org/keywords/phase-modulation","display_name":"Phase modulation","score":0.4268999993801117},{"id":"https://openalex.org/keywords/semiconductor-laser-theory","display_name":"Semiconductor laser theory","score":0.397599995136261},{"id":"https://openalex.org/keywords/intensity","display_name":"Intensity (physics)","score":0.37560001015663147},{"id":"https://openalex.org/keywords/frequency-modulation","display_name":"Frequency modulation","score":0.3662000000476837}],"concepts":[{"id":"https://openalex.org/C129404179","wikidata":"https://www.wikidata.org/wiki/Q1469765","display_name":"Optical communication","level":2,"score":0.6230999827384949},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.5759999752044678},{"id":"https://openalex.org/C123079801","wikidata":"https://www.wikidata.org/wiki/Q750240","display_name":"Modulation (music)","level":2,"score":0.5332000255584717},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.490200012922287},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.4805000126361847},{"id":"https://openalex.org/C48925448","wikidata":"https://www.wikidata.org/wiki/Q6044344","display_name":"Intensity modulation","level":4,"score":0.46470001339912415},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.45910000801086426},{"id":"https://openalex.org/C96834759","wikidata":"https://www.wikidata.org/wiki/Q750463","display_name":"Phase modulation","level":3,"score":0.4268999993801117},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.40799999237060547},{"id":"https://openalex.org/C121477167","wikidata":"https://www.wikidata.org/wiki/Q17154002","display_name":"Semiconductor laser theory","level":3,"score":0.397599995136261},{"id":"https://openalex.org/C93038891","wikidata":"https://www.wikidata.org/wiki/Q1061524","display_name":"Intensity (physics)","level":2,"score":0.37560001015663147},{"id":"https://openalex.org/C11930861","wikidata":"https://www.wikidata.org/wiki/Q181417","display_name":"Frequency modulation","level":3,"score":0.3662000000476837},{"id":"https://openalex.org/C197000039","wikidata":"https://www.wikidata.org/wiki/Q2027432","display_name":"Free-space optical communication","level":3,"score":0.3402999937534332},{"id":"https://openalex.org/C204517386","wikidata":"https://www.wikidata.org/wiki/Q7310795","display_name":"Relative intensity noise","level":4,"score":0.3391000032424927},{"id":"https://openalex.org/C201905106","wikidata":"https://www.wikidata.org/wiki/Q183755","display_name":"Amplitude modulation","level":4,"score":0.3138999938964844},{"id":"https://openalex.org/C45613198","wikidata":"https://www.wikidata.org/wiki/Q1134091","display_name":"Optical filter","level":2,"score":0.2973000109195709},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.2928999960422516},{"id":"https://openalex.org/C194232370","wikidata":"https://www.wikidata.org/wiki/Q162","display_name":"Optical fiber","level":2,"score":0.2858999967575073},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.28279998898506165},{"id":"https://openalex.org/C50831002","wikidata":"https://www.wikidata.org/wiki/Q7098873","display_name":"Optical modulation amplitude","level":4,"score":0.26109999418258667},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.259799987077713}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/ecoc66593.2025.11263226","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ecoc66593.2025.11263226","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 European Conference on Optical Communications (ECOC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G625200956","display_name":null,"funder_award_id":"22H04915,24H00430","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W2047005436","https://openalex.org/W2083368971","https://openalex.org/W2493691256","https://openalex.org/W2592623756","https://openalex.org/W2739800045","https://openalex.org/W2772574868","https://openalex.org/W2903351511","https://openalex.org/W2963360098","https://openalex.org/W4283792708","https://openalex.org/W4381624687","https://openalex.org/W4388266097","https://openalex.org/W4392717500","https://openalex.org/W4393174554","https://openalex.org/W4394623518","https://openalex.org/W4399664544","https://openalex.org/W4404821607","https://openalex.org/W4406015352"],"related_works":[],"abstract_inverted_index":{"We":[0],"demonstrate,":[1],"for":[2],"the":[3],"first":[4],"time,":[5],"directly":[6],"modulated":[7],"high-power":[8],"<tex":[9],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[10],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$1.55-\\mu":[11],"m$</tex>":[12],"-wavelength":[13],"PCSELs":[14],"featuring":[15],"a":[16,32],"narrow":[17],"divergence":[18],"angle.":[19],"Lens-free":[20],"FSO":[21],"communication":[22],"using":[23],"intensity":[24],"modulation":[25],"at":[26],"up":[27],"to":[28],"3":[29],"Gbaud":[30],"with":[31],"link":[33],"budget":[34],"exceeding":[35],"43":[36],"dB":[37],"is":[38],"achieved.":[39],"\u00a92025":[40],"The":[41],"Author(s)":[42]},"counts_by_year":[],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-12-05T00:00:00"}
