Computational approach to homodyne detection of interference phase

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F12%3A00388093" target="_blank" >RIV/68081731:_____/12:00388093 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2010514" target="_blank" >http://dx.doi.org/10.1117/12.2010514</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2010514" target="_blank" >10.1117/12.2010514</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Computational approach to homodyne detection of interference phase

Popis výsledku v původním jazyce

Determination of the interference phase, i.e. the mutual phase shift between interfering waves is a principal issue in the interferometric measurement, especially on the nanometre scale. Our goal was to develop a novel interference phase detection technique that employs a computational approach and a frequency modulation of the laser source to achieve comparable performance with a homodyne detection with an optical phase shift generation. We have used a Michelson setup with polarizing optics that allowed to compare both the homodyne detection method and our novel method side by side while both methods shared the optical setup. Our method also comprises error compensation that deals e.g. with residual amplitude modulation and the scale non-linearities.The experiments revealed that the novel method achieves a periodic error less than 0.16 angular degrees and a standard deviation of less than 1.5 degrees, compared against the reference. The operational distance was 600mm. The method had

Název v anglickém jazyce

Computational approach to homodyne detection of interference phase

Popis výsledku anglicky

Determination of the interference phase, i.e. the mutual phase shift between interfering waves is a principal issue in the interferometric measurement, especially on the nanometre scale. Our goal was to develop a novel interference phase detection technique that employs a computational approach and a frequency modulation of the laser source to achieve comparable performance with a homodyne detection with an optical phase shift generation. We have used a Michelson setup with polarizing optics that allowed to compare both the homodyne detection method and our novel method side by side while both methods shared the optical setup. Our method also comprises error compensation that deals e.g. with residual amplitude modulation and the scale non-linearities.The experiments revealed that the novel method achieves a periodic error less than 0.16 angular degrees and a standard deviation of less than 1.5 degrees, compared against the reference. The operational distance was 600mm. The method had

Druh

D - Stať ve sborníku

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

CPS 2012. 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics (Proceedings of SPIE Vol.8697)

ISBN

978-0-8194-9481-8

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

"869707:1"-"9"

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Ostravice

Datum konání akce

3. 9. 2012

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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