{"id":"https://openalex.org/W958323748","doi":"https://doi.org/10.1049/el:19921231","title":"Low noise operation of Er 3+ doped silica fibre amplifier around 1.6 \u03bcm","display_name":"Low noise operation of Er 3+ doped silica fibre amplifier around 1.6 \u03bcm","publication_year":1992,"publication_date":"1992-09-24","ids":{"openalex":"https://openalex.org/W958323748","doi":"https://doi.org/10.1049/el:19921231","mag":"958323748"},"language":"en","primary_location":{"id":"doi:10.1049/el:19921231","doi":"https://doi.org/10.1049/el:19921231","is_oa":false,"landing_page_url":"https://doi.org/10.1049/el:19921231","pdf_url":null,"source":{"id":"https://openalex.org/S149016011","display_name":"Electronics Letters","issn_l":"0013-5194","issn":["0013-5194","1350-911X"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","jufo-1","norway-1","oarl","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310311714","host_organization_name":"Institution of Engineering and Technology","host_organization_lineage":["https://openalex.org/P4310311714"],"host_organization_lineage_names":["Institution of Engineering and Technology"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Electronics Letters","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"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/A5010928564","display_name":"Jennifer F. Massicott","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1332878012","display_name":"BT Group (United Kingdom)","ror":"https://ror.org/00kv9pj15","country_code":"GB","type":"company","lineage":["https://openalex.org/I1332878012"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"J.F. Massicott","raw_affiliation_strings":["British Telecom Laboratories, Martlesham Heath, Ipswich, Suffolk IP5 7RE, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"British Telecom Laboratories, Martlesham Heath, Ipswich, Suffolk IP5 7RE, UK","institution_ids":["https://openalex.org/I1332878012"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026437887","display_name":"Richard R. Wyatt","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1332878012","display_name":"BT Group (United Kingdom)","ror":"https://ror.org/00kv9pj15","country_code":"GB","type":"company","lineage":["https://openalex.org/I1332878012"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"R. Wyatt","raw_affiliation_strings":["British Telecom Laboratories, Martlesham Heath, Ipswich, Suffolk IP5 7RE, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"British Telecom Laboratories, Martlesham Heath, Ipswich, Suffolk IP5 7RE, UK","institution_ids":["https://openalex.org/I1332878012"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5070797840","display_name":"B. James Ainslie","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1332878012","display_name":"BT Group (United Kingdom)","ror":"https://ror.org/00kv9pj15","country_code":"GB","type":"company","lineage":["https://openalex.org/I1332878012"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"B.J. Ainslie","raw_affiliation_strings":["British Telecom Laboratories, Martlesham Heath, Ipswich, Suffolk IP5 7RE, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"British Telecom Laboratories, Martlesham Heath, Ipswich, Suffolk IP5 7RE, UK","institution_ids":["https://openalex.org/I1332878012"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I1332878012"],"apc_list":{"value":2590,"currency":"USD","value_usd":2590},"apc_paid":null,"fwci":0.4636,"has_fulltext":false,"cited_by_count":87,"citation_normalized_percentile":{"value":0.58388036,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"28","issue":"20","first_page":"1924","last_page":"1925"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10232","display_name":"Optical Network Technologies","score":0.8720999956130981,"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":0.8720999956130981,"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/T10846","display_name":"Photonic Crystal and Fiber Optics","score":0.08739999681711197,"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/T10988","display_name":"Advanced Fiber Laser Technologies","score":0.004800000227987766,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/erbium-doped-fiber-amplifier","display_name":"erbium-doped fiber amplifier","score":0.9210000038146973},{"id":"https://openalex.org/keywords/1-6-mum-wavelength","display_name":"1.6 \u03bcm wavelength","score":0.7860000133514404},{"id":"https://openalex.org/keywords/noise-figure","display_name":"noise figure","score":0.6840000152587891},{"id":"https://openalex.org/keywords/dual-wavelength-pumping","display_name":"dual-wavelength pumping","score":0.8889999985694885},{"id":"https://openalex.org/keywords/1-48-mum-pumping","display_name":"1.48 \u03bcm pumping","score":0.8999999761581421},{"id":"https://openalex.org/keywords/gain-enhancement","display_name":"gain enhancement","score":0.4169999957084656},{"id":"https://openalex.org/keywords/low-noise-amplification","display_name":"low-noise amplification","score":0.5989999771118164}],"concepts":[{"id":"https://openalex.org/C112806910","wikidata":"https://www.wikidata.org/wiki/Q746825","display_name":"Noise figure","level":4,"score":0.6965345144271851},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.670641303062439},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.618127167224884},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.6039749383926392},{"id":"https://openalex.org/C6260449","wikidata":"https://www.wikidata.org/wiki/Q41364","display_name":"Wavelength","level":2,"score":0.573002815246582},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.5228734016418457},{"id":"https://openalex.org/C57863236","wikidata":"https://www.wikidata.org/wiki/Q1130571","display_name":"Doping","level":2,"score":0.5037094950675964},{"id":"https://openalex.org/C101649071","wikidata":"https://www.wikidata.org/wiki/Q1359305","display_name":"Optical amplifier","level":3,"score":0.45239606499671936},{"id":"https://openalex.org/C160724564","wikidata":"https://www.wikidata.org/wiki/Q1620670","display_name":"Wavelength-division multiplexing","level":3,"score":0.4321900010108948},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.420910120010376},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.3890339136123657},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.20397067070007324},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.20379185676574707},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.1896398961544037},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1512836515903473},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.09858453273773193},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1049/el:19921231","doi":"https://doi.org/10.1049/el:19921231","is_oa":false,"landing_page_url":"https://doi.org/10.1049/el:19921231","pdf_url":null,"source":{"id":"https://openalex.org/S149016011","display_name":"Electronics Letters","issn_l":"0013-5194","issn":["0013-5194","1350-911X"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","jufo-1","norway-1","oarl","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310311714","host_organization_name":"Institution of Engineering and Technology","host_organization_lineage":["https://openalex.org/P4310311714"],"host_organization_lineage_names":["Institution of Engineering and Technology"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Electronics Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":3,"referenced_works":["https://openalex.org/W1969491101","https://openalex.org/W2065598218","https://openalex.org/W2084938872"],"related_works":["https://openalex.org/W2535357837","https://openalex.org/W918308631","https://openalex.org/W2074612222","https://openalex.org/W1971664335","https://openalex.org/W2216735568","https://openalex.org/W2065598218","https://openalex.org/W2200447175","https://openalex.org/W2021352609","https://openalex.org/W2543182777","https://openalex.org/W2321259576"],"abstract_inverted_index":{"A":[0],"novel":[1],"method":[2],"of":[3,30,46,58],"using":[4],"two":[5],"pump":[6],"wavelengths":[7],"to":[8,37,78],"achieve":[9],"high":[10],"gains":[11,55],"and":[12,35,64],"enhanced":[13],"noise":[14,68],"performance":[15],"in":[16,56],"the":[17,79],"1.6":[18],"\u03bcm":[19,34,53,85],"Er3+":[20],"doped":[21],"fibre":[22],"amplifier":[23],"is":[24,49,70],"demonstrated.":[25],"By":[26],"launching":[27],"82":[28],"mW":[29,39],"power":[31],"at":[32,40,51],"1.48":[33,84],"up":[36],"1":[38],"1.555":[41],"\u03bcm,":[42],"a":[43,83],"maximum":[44],"gain":[45],"31":[47],"dB":[48,60],"achieved":[50],"1.57":[52,63],"with":[54],"excess":[57],"24":[59],"available":[61],"between":[62],"1.605":[65],"\u03bcm.":[66],"The":[67],"figure":[69],"maintained":[71],"below":[72],"5dB":[73],"over":[74],"this":[75],"bandwidth,":[76],"close":[77],"theoretical":[80],"minimum":[81],"for":[82],"pumped":[86],"amplifier.":[87]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}