About: Precise measurement of the length by means of DFB diode and femtosecond laser

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Need of precise definition of the calibrated length is of great importance in industrial application in these days. Found DFB diode laser wavelength transmitted through the Fabry-Perot etalon is measured by wavelengthmeter. Train of femtosecond laser pulses produces an optical frequency spectrum (optical comb) of separate equidistant frequencies with an offset frequency. Stabilized optical comb generates a very precise frequency rule. Frequency beat between DFB laser source and the closest femtosecond laser line is detected to find the exact frequency. This procedure is done in whole DFB laser diode tuning range. Such method produce about hundred of reproductive and well defined measured points in DFB laser diode tuning range. Measured points are treated by computer algorithm. Moreover the Fabry-Perot mirror distance changes could be precisely analyzed by this method. Need of precise definition of the calibrated length is of great importance in industrial application in these days. Found DFB diode laser wavelength transmitted through the Fabry-Perot etalon is measured by wavelengthmeter. Train of femtosecond laser pulses produces an optical frequency spectrum (optical comb) of separate equidistant frequencies with an offset frequency. Stabilized optical comb generates a very precise frequency rule. Frequency beat between DFB laser source and the closest femtosecond laser line is detected to find the exact frequency. This procedure is done in whole DFB laser diode tuning range. Such method produce about hundred of reproductive and well defined measured points in DFB laser diode tuning range. Measured points are treated by computer algorithm. Moreover the Fabry-Perot mirror distance changes could be precisely analyzed by this method. (en)
Title	Precise measurement of the length by means of DFB diode and femtosecond laser Precise measurement of the length by means of DFB diode and femtosecond laser (en)
skos:prefLabel	Precise measurement of the length by means of DFB diode and femtosecond laser Precise measurement of the length by means of DFB diode and femtosecond laser (en)
skos:notation	RIV/68081731:_____/09:00335085!RIV10-MSM-68081731
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(2A-1TP1/127), P(2A-3TP1/113), P(2C06012), P(FT-TA3/133), P(GA102/07/1179), P(GA102/09/1276), P(LC06007), Z(AV0Z20650511)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Ježek, Jan Číp, Ondřej Lazar, Josef Šmíd, Radek Růžička, Bohdan
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
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	335400
http://linked.open...ai/riv/idVysledku	RIV/68081731:_____/09:00335085
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Fabry-Perot; femtosecond laser; length etaloa; frequaicy comb (en)
http://linked.open.../riv/klicoveSlovo	femtosecond laser Fabry-Perot frequaicy comb length etaloa
http://linked.open...ontrolniKodProRIV	[61A2903F83BB]
http://linked.open...v/mistoKonaniAkce	Munich
http://linked.open...i/riv/mistoVydani	Bellingham
http://linked.open...i/riv/nazevZdroje	Optical Measurement Systems for Industrial Inspection VI. (Proceedings of SPIE Vol. 7389)
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	Centre of Modern Optics The research of methods of diagnostics of gauge blocks for precicion engineering *Investigetion of dynamics of the laser welding process and its control Safe optical wireless links for municipal networks System of laser interferometers for nanometrology of lenghts. Methods for determination of the refractive index of air with optical resonators Interferometer with full in-line compensation of the fluctuations of refractive index
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Ježek, Jan Lazar, Josef Číp, Ondřej Šmíd, Radek Růžička, Bohdan
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2009-06-14 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Research into experimental methods for examination of the physical properties of matter and their application in advanced technologies
number of pages	7 (xsd:int)
http://purl.org/ne...btex#hasPublisher	SPIE
https://schema.org/isbn	978-0-8194-7672-2
is http://linked.open...avai/riv/vysledek of	Precise measurement of the length by means of DFB diode and femtosecond laser Precise measurement of the length by means of DFB diode and femtosecond laser Precise measurement of the length by means of DFB diode and femtosecond laser Precise measurement of the length by means of DFB diode and femtosecond laser

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