{"id":"https://openalex.org/W7206206168","doi":"https://doi.org/10.48550/arxiv.2609.00260","title":"Simulation and development of astrophotonic H-band nulling beam combiner for the CHARA Array","display_name":"Simulation and development of astrophotonic H-band nulling beam combiner for the CHARA Array","publication_year":2026,"publication_date":"2026-08-31","ids":{"openalex":"https://openalex.org/W7206206168","doi":"https://doi.org/10.48550/arxiv.2609.00260"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2609.00260","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.00260","pdf_url":"https://arxiv.org/pdf/2609.00260","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2609.00260","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5071182192","display_name":"Samantha G. Morrison","orcid":"https://orcid.org/0009-0003-6656-7827","observed_orcids":["https://orcid.org/0009-0003-6656-7827"]},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Morrison, Samantha G.","raw_affiliation_strings":["Department of Physics and Astronomy , University of California , Los Angeles , 475 Portola Plaza , Los Angeles , USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Astronomy , University of California , Los Angeles , 475 Portola Plaza , Los Angeles , USA","institution_ids":["https://openalex.org/I161318765"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066623199","display_name":"Pradip R. Gatkine","orcid":"https://orcid.org/0000-0002-1955-2230","observed_orcids":["https://orcid.org/0000-0002-1955-2230"]},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Gatkine, Pradip","raw_affiliation_strings":["Department of Physics and Astronomy , University of California , Los Angeles , 475 Portola Plaza , Los Angeles , USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Astronomy , University of California , Los Angeles , 475 Portola Plaza , Los Angeles , USA","institution_ids":["https://openalex.org/I161318765"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5125676542","display_name":"Michael P. Fitzgerald","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Fitzgerald, Michael P.","raw_affiliation_strings":["Department of Physics and Astronomy , University of California , Los Angeles , 475 Portola Plaza , Los Angeles , USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Astronomy , University of California , Los Angeles , 475 Portola Plaza , Los Angeles , USA","institution_ids":["https://openalex.org/I161318765"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I161318765"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11484","display_name":"Adaptive optics and wavefront sensing","score":0.7851999998092651,"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/T11484","display_name":"Adaptive optics and wavefront sensing","score":0.7851999998092651,"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/T12917","display_name":"Astronomy and Astrophysical Research","score":0.20469999313354492,"subfield":{"id":"https://openalex.org/subfields/3105","display_name":"Instrumentation"},"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/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.004000000189989805,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"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/nulling-interferometry","display_name":"nulling interferometry","score":0.9440000057220459},{"id":"https://openalex.org/keywords/chara-array","display_name":"CHARA Array","score":0.953000009059906},{"id":"https://openalex.org/keywords/active-phase-control","display_name":"active phase control","score":0.8270000219345093},{"id":"https://openalex.org/keywords/mach-zehnder-interferometer","display_name":"Mach-Zehnder interferometer","score":0.8989999890327454},{"id":"https://openalex.org/keywords/direct-imaging-of-exoplanets","display_name":"exoplanet direct imaging","score":0.6679999828338623},{"id":"https://openalex.org/keywords/stellar-companions","display_name":"stellar companions","score":0.6740000247955322},{"id":"https://openalex.org/keywords/near-infrared-interferometry","display_name":"near-infrared interferometry","score":0.6959999799728394},{"id":"https://openalex.org/keywords/instrument-simulation","display_name":"instrument simulation","score":0.5720000267028809},{"id":"https://openalex.org/keywords/habitable-worlds-observatory","display_name":"Habitable Worlds Observatory","score":0.7139999866485596}],"concepts":[{"id":"https://openalex.org/C163479331","wikidata":"https://www.wikidata.org/wiki/Q44559","display_name":"Exoplanet","level":3,"score":0.8669000267982483},{"id":"https://openalex.org/C166689943","wikidata":"https://www.wikidata.org/wiki/Q850283","display_name":"Interferometry","level":2,"score":0.6324999928474426},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.5914000272750854},{"id":"https://openalex.org/C23576306","wikidata":"https://www.wikidata.org/wiki/Q17004698","display_name":"Astronomical interferometer","level":3,"score":0.5799000263214111},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.5629000067710876},{"id":"https://openalex.org/C133848361","wikidata":"https://www.wikidata.org/wiki/Q4764027","display_name":"Angular resolution (graph drawing)","level":2,"score":0.4147999882698059},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.4032999873161316},{"id":"https://openalex.org/C168834538","wikidata":"https://www.wikidata.org/wiki/Q3705329","display_name":"Beam (structure)","level":2,"score":0.4025000035762787},{"id":"https://openalex.org/C2775920969","wikidata":"https://www.wikidata.org/wiki/Q860112","display_name":"Chara","level":2,"score":0.3531999886035919},{"id":"https://openalex.org/C44280652","wikidata":"https://www.wikidata.org/wiki/Q104837","display_name":"Phase (matter)","level":2,"score":0.3172999918460846},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.2989000082015991},{"id":"https://openalex.org/C509933004","wikidata":"https://www.wikidata.org/wiki/Q194163","display_name":"Broadband","level":2,"score":0.2858999967575073},{"id":"https://openalex.org/C31872934","wikidata":"https://www.wikidata.org/wiki/Q1417028","display_name":"Optical path","level":2,"score":0.2840999960899353},{"id":"https://openalex.org/C2780056265","wikidata":"https://www.wikidata.org/wiki/Q106239881","display_name":"High dynamic range","level":3,"score":0.2809999883174896},{"id":"https://openalex.org/C102290492","wikidata":"https://www.wikidata.org/wiki/Q7575045","display_name":"Speckle pattern","level":2,"score":0.2768999934196472},{"id":"https://openalex.org/C20788544","wikidata":"https://www.wikidata.org/wiki/Q467054","display_name":"Photonics","level":2,"score":0.27549999952316284},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.2736999988555908},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.271699994802475},{"id":"https://openalex.org/C73329638","wikidata":"https://www.wikidata.org/wiki/Q527","display_name":"Sky","level":2,"score":0.2639999985694885}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2609.00260","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.00260","pdf_url":"https://arxiv.org/pdf/2609.00260","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2609.00260","doi":"https://doi.org/10.48550/arxiv.2609.00260","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2609.00260","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2609.00260","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.00260","pdf_url":"https://arxiv.org/pdf/2609.00260","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7206206168.pdf","grobid_xml":"https://content.openalex.org/works/W7206206168.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4414326145","https://openalex.org/W4399658130","https://openalex.org/W30383880","https://openalex.org/W7203951627","https://openalex.org/W3197854104","https://openalex.org/W7166810734","https://openalex.org/W4298864575","https://openalex.org/W4413459391","https://openalex.org/W7202060990","https://openalex.org/W7077450947"],"abstract_inverted_index":{"Nulling":[0],"interferometry":[1],"is":[2,28,108,162,193,209],"a":[3,44,86,141,156,210,266],"promising":[4,87],"method":[5],"for":[6,89,101,146,160,199,205,226,246],"direct":[7],"detection":[8],"and":[9,18,35,47,149,167,264],"characterization":[10],"of":[11,43,74,80,214,240,269],"faint":[12,19],"stellar":[13,271],"companions":[14],"such":[15,92,179],"as":[16,93],"exoplanets":[17],"binary":[20],"sources.":[21,38],"The":[22,77,99,151,187],"dominant":[23],"constraint":[24],"on":[25,237],"instrument":[26,206],"performance":[27],"instability":[29],"noise":[30],"from":[31,252],"vibrations,":[32],"thermal":[33],"expansions,":[34],"other":[36],"systematic":[37],"Photonic":[39],"instruments":[40],"have":[41,138],"footprints":[42],"few":[45],"centimeters":[46],"enable":[48],"advanced":[49],"light":[50],"control":[51,59,225],"architectures.":[52],"Astrophotonic":[53],"implementations":[54],"can":[55],"include":[56,249],"active":[57,223],"phase":[58,224],"via":[60],"Mach-Zehnder":[61],"interferometers":[62],"(MZIs)":[63],"to":[64,140,163,177,262],"actively":[65],"minimize":[66],"residual":[67],"optical":[68],"path":[69],"errors":[70],"at":[71,118,135],"the":[72,94,111,116,125,131,174,194,227,238,256,260],"location":[73],"beam":[75,158,220,244],"combination.":[76],"compact":[78],"size":[79],"photonic":[81,242,257],"chips":[82],"also":[83],"makes":[84],"them":[85],"solution":[88],"space-based":[90],"applications":[91],"upcoming":[95],"Habitable":[96],"Worlds":[97],"Observatory.":[98],"Center":[100],"High":[102],"Angular":[103],"Resolution":[104],"Astronomy":[105],"(CHARA)":[106],"Array":[107,189],"equipped":[109],"with":[110,222],"world's":[112],"longest":[113],"baseline":[114],"in":[115,130,154,182],"near-infrared":[117],"330":[119],"meters":[120],"long.":[121],"CHARA":[122,136,161,188,228],"therefore":[123],"has":[124,259],"most":[126],"sensitive":[127],"angular":[128],"resolution":[129],"near-infrared.":[132],"A":[133],"nuller":[134,258],"would":[137],"access":[139],"novel":[142],"parameter":[143],"space":[144],"essential":[145],"exoplanet":[147],"discovery":[148],"characterization.":[150],"first":[152],"step":[153],"preparing":[155],"nulling":[157,219,243],"combiner":[159,221,245],"develop":[164],"compelling,":[165],"realistic,":[166],"well-defined":[168],"science":[169,180],"cases.":[170],"Simulation":[171],"suites":[172],"quantify":[173],"technical":[175],"requirements":[176],"reach":[178],"goals":[181],"their":[183],"respective":[184],"complex":[185],"systems.":[186,273],"Response":[190],"Model":[191],"(CHARM)":[192],"first-ever":[195],"simulator":[196],"built":[197],"specifically":[198],"CHARA,":[200],"opening":[201],"up":[202],"new":[203],"pathways":[204],"simulation.":[207],"CHARM":[208],"flexible":[211],"simulation":[212],"tool":[213],"an":[215,235],"H-band,":[216],"self-calibrated":[217],"astrophotonic":[218],"Array.":[229],"In":[230],"this":[231],"paper,":[232],"we":[233],"present":[234],"update":[236],"development":[239],"our":[241],"CHARA.":[247],"We":[248],"early":[250],"results":[251],"CHARM,":[253],"demonstrating":[254],"that":[255],"potential":[261],"detect":[263],"characterize":[265],"wide":[267],"range":[268],"bright":[270],"companion":[272]},"counts_by_year":[],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2026-09-03T00:00:00"}