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Automatic mode-matching of a Fabry-Perot cavity with a single photodiode and spatial light modulation

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dc.contributor.authorRalph, Tarquin
dc.contributor.authorAltin, Paul
dc.contributor.authorRabeling, David
dc.contributor.authorMcClelland, David
dc.contributor.authorShaddock, Daniel
dc.date.accessioned2022-10-06T04:23:08Z
dc.date.issued2020
dc.date.updated2021-11-28T07:21:27Z
dc.description.abstractConventional cavity alignment sensing uses multi-element photodiodes to sense the matching of a laser beam to the mode of a cavity. We present a new approach that uses a single-element photodiode combined with deformable mirrors to modulate orthogonal codes across distinct spatial regions of the laser wavefront. By decoding the photodiode signal it is possible to map the mode mismatch and produce error signals for feedback to the mirrors to optimize the coupling of the laser to the cavity. We characterise this sensing and control system experimentally and demonstrate closed-loop enhancement of cavity alignment and mode matching.en_AU
dc.description.sponsorshipThis research was supported by the Australian Research Council under the Centre of Excellence for Gravitational Wave Discovery (Grant No. CE170100004) and the Centre of Excellence for Engineered Quantum Systems (Grant No. CE170100009).en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn2040-8986en_AU
dc.identifier.urihttp://hdl.handle.net/1885/274325
dc.language.isoen_AUen_AU
dc.publisherInstitute of Physics Publishingen_AU
dc.relationhttp://purl.org/au-research/grants/arc/CE170100004en_AU
dc.relationhttp://purl.org/au-research/grants/arc/CE170100009en_AU
dc.rights© 2020 IOP Publishing Ltd Printed in the UKen_AU
dc.sourceJournal of Opticsen_AU
dc.subjectoptical cavityen_AU
dc.subjectmode-matchingen_AU
dc.subjectspatial light modulatoren_AU
dc.titleAutomatic mode-matching of a Fabry-Perot cavity with a single photodiode and spatial light modulationen_AU
dc.typeJournal articleen_AU
local.bibliographicCitation.issue10en_AU
local.bibliographicCitation.lastpage6en_AU
local.bibliographicCitation.startpage1en_AU
local.contributor.affiliationRalph, Tarquin, College of Science, ANUen_AU
local.contributor.affiliationAltin, Paul, College of Science, ANUen_AU
local.contributor.affiliationRabeling, David, College of Science, ANUen_AU
local.contributor.affiliationMcClelland, David, College of Science, ANUen_AU
local.contributor.affiliationShaddock, Daniel, College of Science, ANUen_AU
local.contributor.authoruidRalph, Tarquin, u5301852en_AU
local.contributor.authoruidAltin, Paul, u4103634en_AU
local.contributor.authoruidRabeling, David, u4074112en_AU
local.contributor.authoruidMcClelland, David, u8802403en_AU
local.contributor.authoruidShaddock, Daniel, u9701638en_AU
local.description.embargo2099-12-31
local.description.notesImported from ARIESen_AU
local.identifier.absfor510804 - Quantum optics and quantum optomechanicsen_AU
local.identifier.ariespublicationa383154xPUB15500en_AU
local.identifier.citationvolume22en_AU
local.identifier.doi10.1088/2040-8986/abb3a8en_AU
local.identifier.scopusID2-s2.0-85092573849
local.publisher.urlhttps://iopscience.iop.org/en_AU
local.type.statusPublished Versionen_AU

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