Toward a large bandwidth photonic correlator for infrared heterodyne interferometry
Context. Infrared heterodyne interferometry has been proposed as a practical alternative for recombining a large number of telescopes over kilometric baselines in the mid-infrared. However, the current limited correlation capacities impose strong restrictions on the sensitivity of this appealing tec...
Gespeichert in:
Veröffentlicht in: | Astronomy and astrophysics (Berlin) 2020-07, Vol.639 |
---|---|
Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | |
---|---|
container_issue | |
container_start_page | |
container_title | Astronomy and astrophysics (Berlin) |
container_volume | 639 |
creator | Bourdarot, G H. Guillet de Chatellus J-P. Berger |
description | Context. Infrared heterodyne interferometry has been proposed as a practical alternative for recombining a large number of telescopes over kilometric baselines in the mid-infrared. However, the current limited correlation capacities impose strong restrictions on the sensitivity of this appealing technique. Aims. In this paper, we propose to address the problem of transport and correlation of wide-bandwidth signals over kilometric distances by introducing photonic processing in infrared heterodyne interferometry. Methods. We describe the architecture of a photonic double-sideband correlator for two telescopes, along with the experimental demonstration of this concept on a proof-of-principle test bed. Results. We demonstrate the a posteriori correlation of two infrared signals previously generated on a two-telescope simulator in a double-sideband photonic correlator. A degradation of the signal-to-noise ratio of 13%, equivalent to a noise factor NF = 1.15, is obtained through the correlator, and the temporal coherence properties of our input signals are retrieved from these measurements. Conclusions. Our results demonstrate that photonic processing can be used to correlate heterodyne signals with a potentially large increase of detection bandwidth. These developments open the way to photonic processing of wide bandwidth signals for mid-infrared heterodyne interferometry, in particular for a large number of telescopes and for direct imager recombiners. |
doi_str_mv | 10.1051/0004-6361/201937368 |
format | Article |
fullrecord | <record><control><sourceid>proquest</sourceid><recordid>TN_cdi_proquest_journals_2487146581</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2487146581</sourcerecordid><originalsourceid>FETCH-LOGICAL-c1238-d796c0b2d5c72c3091e7bf65688f4f9536713102c628da07cabb46f60c2cc2e33</originalsourceid><addsrcrecordid>eNo9TUtLAzEYDKLgWv0FXgKe1-bLl02yRym-oODBei7ZPNwt66ZmU0r_vQHFwzAPhhlCboHdA2tgyRgTtUQJS86gRYVSn5EKBPKaKSHPSfXfuCRX87wrloPGirxv4tEkRw0dTfr0tDOTOw4u93TfxxynwVIbU_KjyTHRUDBMIZnkHe199im60-RLVmQo7svndLomF8GMs7_54wX5eHrcrF7q9dvz6-phXVvgqGunWmlZx11jFbfIWvCqC7KRWgcR2galAgTGreTaGaas6Tohg2SWW8s94oLc_e7uU_w--Dlvd_GQpnK55UIrELLRgD-pT1Mw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2487146581</pqid></control><display><type>article</type><title>Toward a large bandwidth photonic correlator for infrared heterodyne interferometry</title><source>Bacon EDP Sciences France Licence nationale-ISTEX-PS-Journals-PFISTEX</source><source>EDP Sciences</source><source>EZB-FREE-00999 freely available EZB journals</source><creator>Bourdarot, G ; H. Guillet de Chatellus ; J-P. Berger</creator><creatorcontrib>Bourdarot, G ; H. Guillet de Chatellus ; J-P. Berger</creatorcontrib><description>Context. Infrared heterodyne interferometry has been proposed as a practical alternative for recombining a large number of telescopes over kilometric baselines in the mid-infrared. However, the current limited correlation capacities impose strong restrictions on the sensitivity of this appealing technique. Aims. In this paper, we propose to address the problem of transport and correlation of wide-bandwidth signals over kilometric distances by introducing photonic processing in infrared heterodyne interferometry. Methods. We describe the architecture of a photonic double-sideband correlator for two telescopes, along with the experimental demonstration of this concept on a proof-of-principle test bed. Results. We demonstrate the a posteriori correlation of two infrared signals previously generated on a two-telescope simulator in a double-sideband photonic correlator. A degradation of the signal-to-noise ratio of 13%, equivalent to a noise factor NF = 1.15, is obtained through the correlator, and the temporal coherence properties of our input signals are retrieved from these measurements. Conclusions. Our results demonstrate that photonic processing can be used to correlate heterodyne signals with a potentially large increase of detection bandwidth. These developments open the way to photonic processing of wide bandwidth signals for mid-infrared heterodyne interferometry, in particular for a large number of telescopes and for direct imager recombiners.</description><identifier>ISSN: 0004-6361</identifier><identifier>EISSN: 1432-0746</identifier><identifier>DOI: 10.1051/0004-6361/201937368</identifier><language>eng</language><publisher>Heidelberg: EDP Sciences</publisher><subject>Bandwidths ; Correlation ; Infrared astronomy ; Interferometry ; Noise factor ; Photonics ; Signal processing ; Signal to noise ratio ; Telescopes</subject><ispartof>Astronomy and astrophysics (Berlin), 2020-07, Vol.639</ispartof><rights>2020. This work is licensed under https://creativecommons.org/licenses/by/4.0 (the “License”). Notwithstanding the ProQuest Terms and conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1238-d796c0b2d5c72c3091e7bf65688f4f9536713102c628da07cabb46f60c2cc2e33</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Bourdarot, G</creatorcontrib><creatorcontrib>H. Guillet de Chatellus</creatorcontrib><creatorcontrib>J-P. Berger</creatorcontrib><title>Toward a large bandwidth photonic correlator for infrared heterodyne interferometry</title><title>Astronomy and astrophysics (Berlin)</title><description>Context. Infrared heterodyne interferometry has been proposed as a practical alternative for recombining a large number of telescopes over kilometric baselines in the mid-infrared. However, the current limited correlation capacities impose strong restrictions on the sensitivity of this appealing technique. Aims. In this paper, we propose to address the problem of transport and correlation of wide-bandwidth signals over kilometric distances by introducing photonic processing in infrared heterodyne interferometry. Methods. We describe the architecture of a photonic double-sideband correlator for two telescopes, along with the experimental demonstration of this concept on a proof-of-principle test bed. Results. We demonstrate the a posteriori correlation of two infrared signals previously generated on a two-telescope simulator in a double-sideband photonic correlator. A degradation of the signal-to-noise ratio of 13%, equivalent to a noise factor NF = 1.15, is obtained through the correlator, and the temporal coherence properties of our input signals are retrieved from these measurements. Conclusions. Our results demonstrate that photonic processing can be used to correlate heterodyne signals with a potentially large increase of detection bandwidth. These developments open the way to photonic processing of wide bandwidth signals for mid-infrared heterodyne interferometry, in particular for a large number of telescopes and for direct imager recombiners.</description><subject>Bandwidths</subject><subject>Correlation</subject><subject>Infrared astronomy</subject><subject>Interferometry</subject><subject>Noise factor</subject><subject>Photonics</subject><subject>Signal processing</subject><subject>Signal to noise ratio</subject><subject>Telescopes</subject><issn>0004-6361</issn><issn>1432-0746</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNo9TUtLAzEYDKLgWv0FXgKe1-bLl02yRym-oODBei7ZPNwt66ZmU0r_vQHFwzAPhhlCboHdA2tgyRgTtUQJS86gRYVSn5EKBPKaKSHPSfXfuCRX87wrloPGirxv4tEkRw0dTfr0tDOTOw4u93TfxxynwVIbU_KjyTHRUDBMIZnkHe199im60-RLVmQo7svndLomF8GMs7_54wX5eHrcrF7q9dvz6-phXVvgqGunWmlZx11jFbfIWvCqC7KRWgcR2galAgTGreTaGaas6Tohg2SWW8s94oLc_e7uU_w--Dlvd_GQpnK55UIrELLRgD-pT1Mw</recordid><startdate>20200701</startdate><enddate>20200701</enddate><creator>Bourdarot, G</creator><creator>H. Guillet de Chatellus</creator><creator>J-P. Berger</creator><general>EDP Sciences</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20200701</creationdate><title>Toward a large bandwidth photonic correlator for infrared heterodyne interferometry</title><author>Bourdarot, G ; H. Guillet de Chatellus ; J-P. Berger</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1238-d796c0b2d5c72c3091e7bf65688f4f9536713102c628da07cabb46f60c2cc2e33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Bandwidths</topic><topic>Correlation</topic><topic>Infrared astronomy</topic><topic>Interferometry</topic><topic>Noise factor</topic><topic>Photonics</topic><topic>Signal processing</topic><topic>Signal to noise ratio</topic><topic>Telescopes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bourdarot, G</creatorcontrib><creatorcontrib>H. Guillet de Chatellus</creatorcontrib><creatorcontrib>J-P. Berger</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Astronomy and astrophysics (Berlin)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bourdarot, G</au><au>H. Guillet de Chatellus</au><au>J-P. Berger</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Toward a large bandwidth photonic correlator for infrared heterodyne interferometry</atitle><jtitle>Astronomy and astrophysics (Berlin)</jtitle><date>2020-07-01</date><risdate>2020</risdate><volume>639</volume><issn>0004-6361</issn><eissn>1432-0746</eissn><abstract>Context. Infrared heterodyne interferometry has been proposed as a practical alternative for recombining a large number of telescopes over kilometric baselines in the mid-infrared. However, the current limited correlation capacities impose strong restrictions on the sensitivity of this appealing technique. Aims. In this paper, we propose to address the problem of transport and correlation of wide-bandwidth signals over kilometric distances by introducing photonic processing in infrared heterodyne interferometry. Methods. We describe the architecture of a photonic double-sideband correlator for two telescopes, along with the experimental demonstration of this concept on a proof-of-principle test bed. Results. We demonstrate the a posteriori correlation of two infrared signals previously generated on a two-telescope simulator in a double-sideband photonic correlator. A degradation of the signal-to-noise ratio of 13%, equivalent to a noise factor NF = 1.15, is obtained through the correlator, and the temporal coherence properties of our input signals are retrieved from these measurements. Conclusions. Our results demonstrate that photonic processing can be used to correlate heterodyne signals with a potentially large increase of detection bandwidth. These developments open the way to photonic processing of wide bandwidth signals for mid-infrared heterodyne interferometry, in particular for a large number of telescopes and for direct imager recombiners.</abstract><cop>Heidelberg</cop><pub>EDP Sciences</pub><doi>10.1051/0004-6361/201937368</doi><oa>free_for_read</oa></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0004-6361 |
ispartof | Astronomy and astrophysics (Berlin), 2020-07, Vol.639 |
issn | 0004-6361 1432-0746 |
language | eng |
recordid | cdi_proquest_journals_2487146581 |
source | Bacon EDP Sciences France Licence nationale-ISTEX-PS-Journals-PFISTEX; EDP Sciences; EZB-FREE-00999 freely available EZB journals |
subjects | Bandwidths Correlation Infrared astronomy Interferometry Noise factor Photonics Signal processing Signal to noise ratio Telescopes |
title | Toward a large bandwidth photonic correlator for infrared heterodyne interferometry |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-27T06%3A09%3A26IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Toward%20a%20large%20bandwidth%20photonic%20correlator%20for%20infrared%20heterodyne%20interferometry&rft.jtitle=Astronomy%20and%20astrophysics%20(Berlin)&rft.au=Bourdarot,%20G&rft.date=2020-07-01&rft.volume=639&rft.issn=0004-6361&rft.eissn=1432-0746&rft_id=info:doi/10.1051/0004-6361/201937368&rft_dat=%3Cproquest%3E2487146581%3C/proquest%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2487146581&rft_id=info:pmid/&rfr_iscdi=true |