Interferometry in a passive Fabry-Perot cavity with the detection of a standing wave

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00434228" target="_blank" >RIV/68378271:_____/14:00434228 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081731:_____/14:00434228

Výsledek na webu

<a href="http://dx.doi.org/10.1109/URSIGASS.2014.6929045" target="_blank" >http://dx.doi.org/10.1109/URSIGASS.2014.6929045</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/URSIGASS.2014.6929045" target="_blank" >10.1109/URSIGASS.2014.6929045</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Interferometry in a passive Fabry-Perot cavity with the detection of a standing wave

Popis výsledku v původním jazyce

We present a measuring technique for displacement and position sensing over a limited range with detection of standing-wave pattern inside of a passive Fabry-Perot cavity. The concept considers locking of the laser optical frequency and the length of theFabry-Perot cavity in resonance. Fixing the length of the cavity to e.g. a highly stable mechanical reference allows to stabilize wavelength of the laser in air and thus to eliminate especially the faster fluctuations of refractive index of air due to air flow and inhomogeneities. Sensing of the interference maxima and minima within the cavity along the beam axis has been tested and proven with a low loss photoresistive photodetector based on a thin polycrystalline silicon layer. Reduction of losses was achieved thanks to a design as an optimized set of interference layers acting as an antireflection coating. The principle is demonstrated on an experimental setup.

Název v anglickém jazyce

Interferometry in a passive Fabry-Perot cavity with the detection of a standing wave

Popis výsledku anglicky

We present a measuring technique for displacement and position sensing over a limited range with detection of standing-wave pattern inside of a passive Fabry-Perot cavity. The concept considers locking of the laser optical frequency and the length of theFabry-Perot cavity in resonance. Fixing the length of the cavity to e.g. a highly stable mechanical reference allows to stabilize wavelength of the laser in air and thus to eliminate especially the faster fluctuations of refractive index of air due to air flow and inhomogeneities. Sensing of the interference maxima and minima within the cavity along the beam axis has been tested and proven with a low loss photoresistive photodetector based on a thin polycrystalline silicon layer. Reduction of losses was achieved thanks to a design as an optimized set of interference layers acting as an antireflection coating. The principle is demonstrated on an experimental setup.

Druh

D - Stať ve sborníku

CEP obor

BH - Optika, masery a lasery

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

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI (Proceedings IEEE)

ISBN

978-1-4673-5225-3

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

IEEE

Místo vydání

Piscataway

Místo konání akce

Beijing

Datum konání akce

16. 8. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—