Cryogenic fibre-fed laser metrology

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dc.contributor.authorChristiansen, Adam J.
dc.contributor.supervisorNaylor, David A.
dc.date.accessioned2020-10-16T15:20:46Z
dc.date.available2020-10-16T15:20:46Z
dc.date.issued2020
dc.degree.levelMastersen_US
dc.description.abstractCryogenic cooling is a fundamental requirement for broadband far-infrared spectroscopic instrumentation to benefit from state-of-the-art far-infrared detectors. The precision to which the moving cryogenic components of the instrument can be measured and controlled affects its ability to recover the spectrum and exacts a low power robust position metrology system. This thesis explores a number of laser-based position metrology solutions and shows that a fibre-fed range-resolved interferometer meets the stringent precision and low power requirements of a metrology system for future space missions. Two cryogenic fibre-fed range-resoled interferometers are theoretically discussed and subsequently constructed; the first using the Clarke transform to decode three-phase signals, and the second based on sinusoidal laser frequency modulation. Experimental results of room and cryogenic (<4 K) temperature testing for both systems are presented. Lessons learned, suggested improvements, and the employment of a range-resolved interferometer for cryogenic accelerometry, lunar seismology, and other applications are discussed.en_US
dc.identifier.urihttps://hdl.handle.net/10133/5792
dc.language.isoen_USen_US
dc.proquest.subject0606en_US
dc.proquest.subject0752en_US
dc.proquest.subject0544en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Department of Physics and Astronomyen_US
dc.publisher.departmentDepartment of Physics and Astronomyen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectCryogenicen_US
dc.subjectElectronicsen_US
dc.subjectInterferometryen_US
dc.subjectLaseren_US
dc.subjectMetrologyen_US
dc.subjectPhotonicsen_US
dc.subjectPosition metrologyen_US
dc.subjectRange-resolved interferometryen_US
dc.subjectSignal processingen_US
dc.subjectCryoelectronicsen_US
dc.subjectInterferometersen_US
dc.subjectElectronic apparatus and appliances -- Thermal propertiesen_US
dc.subjectElectronic apparatus and appliances -- Temperature controlen_US
dc.subjectMaterials -- Effect of space environment onen_US
dc.subjectLow temperature engineeringen_US
dc.subjectLaser interferometersen_US
dc.subjectDissertations, Academicen_US
dc.titleCryogenic fibre-fed laser metrologyen_US
dc.typeThesisen_US
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