High-sensitivity high-resolution refractometry with twin turn-around-point long-period gratings in a photonic crystal fiber

Kód výsledku v IS VaVaI

RIV/67985882:_____/13:00396688 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1117/12.2017335

DOI - Digital Object Identifier

10.1117/12.2017335

Jazyk výsledku

angličtina

Název v původním jazyce

High-sensitivity high-resolution refractometry with twin turn-around-point long-period gratings in a photonic crystal fiber

Popis výsledku v původním jazyce

We present the numerical design of a turn-around-point long-period grating in a photonic crystal fiber (TAP PCF-LPG) for high-sensitivity, high-resolution refractometry of gases. High refractive-index sensitivity is achieved by operating LPGs in the vicinity of the dispersion turning point of the optimized PCF. Despite the resonant wavelength of the optimized PCF-LPG is highly sensitive to the refractive index of analytes, its large shifts could be monitored with a reduced resolution because the resonance dip in the TAP LPG transmission spectrum is broad. To provide also high refractive-index resolution, twin TAP-LPGs have been proposed to be used as 3 dB broadband mode converters in the interferometric scheme. The first LPG couples a portion of the light in the core mode to a forward propagating cladding mode and the second LPG couples the light back to the core mode. The resulting interference fringes within the envelope of LPG attenuation dip provide a means for higher resolution se

Název v anglickém jazyce

High-sensitivity high-resolution refractometry with twin turn-around-point long-period gratings in a photonic crystal fiber

Popis výsledku anglicky

We present the numerical design of a turn-around-point long-period grating in a photonic crystal fiber (TAP PCF-LPG) for high-sensitivity, high-resolution refractometry of gases. High refractive-index sensitivity is achieved by operating LPGs in the vicinity of the dispersion turning point of the optimized PCF. Despite the resonant wavelength of the optimized PCF-LPG is highly sensitive to the refractive index of analytes, its large shifts could be monitored with a reduced resolution because the resonance dip in the TAP LPG transmission spectrum is broad. To provide also high refractive-index resolution, twin TAP-LPGs have been proposed to be used as 3 dB broadband mode converters in the interferometric scheme. The first LPG couples a portion of the light in the core mode to a forward propagating cladding mode and the second LPG couples the light back to the core mode. The resulting interference fringes within the envelope of LPG attenuation dip provide a means for higher resolution se

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

—

Projekt

LD11030: Modelování, návrh a charakterizace mikrostrukturních vláken pro optické senzory

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

MICRO-STRUCTURED AND SPECIALTY OPTICAL FIBRES II

ISBN

978-0-8194-9577-8

ISSN

0277-786X

e-ISSN

—

Počet stran výsledku

9

Strana od-do

—

Název nakladatele

SPIE-INT SOC OPTICAL ENGINEERING

Místo vydání

BELLINGHAM

Místo konání akce

Prague

Datum konání akce

15. 4. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000323548700020