About: Detection of interference phase by digital computation of quadrature signals in homodyne laser interferometry

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We have proposed an approach to the interference phase extraction in the homodyne laser interferometry. The method employs a series of computational steps to reconstruct the signals for quadrature detection from an interference signal from a non-polarising interferometer sampled by a simple photodetector. The complexity trade-off is the use of laser beam with frequency modulation capability. It is analytically derived and its validity and performance is experimentally verified. The method has proven to be a feasible alternative for the traditional homodyne detection since it performs with comparable accuracy, especially where the optical setup complexity is principal issue and the modulation of laser beam is not a heavy burden (e.g., in multi-axis sensor or laser diode based systems). We have proposed an approach to the interference phase extraction in the homodyne laser interferometry. The method employs a series of computational steps to reconstruct the signals for quadrature detection from an interference signal from a non-polarising interferometer sampled by a simple photodetector. The complexity trade-off is the use of laser beam with frequency modulation capability. It is analytically derived and its validity and performance is experimentally verified. The method has proven to be a feasible alternative for the traditional homodyne detection since it performs with comparable accuracy, especially where the optical setup complexity is principal issue and the modulation of laser beam is not a heavy burden (e.g., in multi-axis sensor or laser diode based systems). (en)
Title	Detection of interference phase by digital computation of quadrature signals in homodyne laser interferometry Detection of interference phase by digital computation of quadrature signals in homodyne laser interferometry (en)
skos:prefLabel	Detection of interference phase by digital computation of quadrature signals in homodyne laser interferometry Detection of interference phase by digital computation of quadrature signals in homodyne laser interferometry (en)
skos:notation	RIV/68081731:_____/12:00383878!RIV13-GA0-68081731
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED0017/01/01), P(EE2.3.30.0054), P(FR-TI1/241), P(FR-TI2/705), P(GAP102/10/1813)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Buchta, Zdeněk Číp, Ondřej Šarbort, Martin Lazar, Josef Řeřucha, Šimon
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav přístrojové techniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	130441
http://linked.open...ai/riv/idVysledku	RIV/68081731:_____/12:00383878
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	digital signal processing; homodyne detection; laser interferometry; optical metrology (en)
http://linked.open.../riv/klicoveSlovo	laser interferometry digital signal processing homodyne detection optical metrology
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[37D9D4F59C5C]
http://linked.open...i/riv/nazevZdroje	Sensors
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Components for nano-diagnostic of length fluctuations, deviation of shapes and surface faults *Non-contact optical measuring methods and systems for precise engineering Methods for generation of a length etalon by means of stabilized femtosecond mode-locked laser APPLICATION LABORATORIES OF ADVANCED MICROTECHNOLOGIES AND NANOTECHNOLOGIES Personal development of research teams
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	12
http://linked.open...iv/tvurceVysledku	Buchta, Zdeněk Lazar, Josef Číp, Ondřej Šarbort, Martin Řeřucha, Šimon
http://linked.open...ain/vavai/riv/wos	000310507800063
issn	1424-8220
number of pages	16 (xsd:int)
http://bibframe.org/vocab/doi	10.3390/s121014095

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