Wavelength modulation-based method for interference phase detection with reduced optical complexity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F13%3A00421239" target="_blank" >RIV/68081731:_____/13:00421239 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2020678" target="_blank" >http://dx.doi.org/10.1117/12.2020678</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2020678" target="_blank" >10.1117/12.2020678</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Wavelength modulation-based method for interference phase detection with reduced optical complexity

Popis výsledku v původním jazyce

Although the laser interferometry represents the most precise class of techniques in the field of precise measurement of geometrical quantities, its wide use in measurement systems is still accompanied by many unresolved challenges. One of these challenges is the complexity of underlying optical systems. We present a novel approach to the interference phase detection - fringe subdivision - in the homodyne laser interferometry that aims at reduction of the optical complexity while the resolution is preserved. Our method employs a series of computational steps to infer a pair of signals in quadrature that allows to determine the interference phase with a sub-nanometre resolution from an interference signal from a non-polarising interferometer sampled bya single photodetector. The complexity trade-off is the use of laser beam with frequency modulation capability. The method was experimentally evaluated on a Michelson interferometer-based free-space setup and its performance has been comp

Název v anglickém jazyce

Wavelength modulation-based method for interference phase detection with reduced optical complexity

Popis výsledku anglicky

Although the laser interferometry represents the most precise class of techniques in the field of precise measurement of geometrical quantities, its wide use in measurement systems is still accompanied by many unresolved challenges. One of these challenges is the complexity of underlying optical systems. We present a novel approach to the interference phase detection - fringe subdivision - in the homodyne laser interferometry that aims at reduction of the optical complexity while the resolution is preserved. Our method employs a series of computational steps to infer a pair of signals in quadrature that allows to determine the interference phase with a sub-nanometre resolution from an interference signal from a non-polarising interferometer sampled bya single photodetector. The complexity trade-off is the use of laser beam with frequency modulation capability. The method was experimentally evaluated on a Michelson interferometer-based free-space setup and its performance has been comp

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Optical Measurement Systems for Industrial Inspection VIII (Proceedings of SPIE Vol. 8788)

ISBN

978-0-8194-9604-1

ISSN

—

e-ISSN

—

Počet stran výsledku

9

Strana od-do

"87883C:1"-"9"

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Munich

Datum konání akce

13. 5. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000323493700108