Effect of irradiation symmetry of CO2 laser on mode coupling in long-period gratings inscribed in photonic crystal fiber

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F13%3A00396748" target="_blank" >RIV/67985882:_____/13:00396748 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2016194" target="_blank" >http://dx.doi.org/10.1117/12.2016194</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2016194" target="_blank" >10.1117/12.2016194</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of irradiation symmetry of CO2 laser on mode coupling in long-period gratings inscribed in photonic crystal fiber

Popis výsledku v původním jazyce

Long-period gratings (LPG) are inscribed in endlessly single mode (ESM) photonic crystal fiber (PCF) and conventional single mode fiber (SMF) with symmetric and asymmetric CO2 laser irradiation. Transmission measurements and near-field imaging indicate that symmetric index perturbation induced by laser irradiation with the aid of a 120 degrees gold-coated reflecting mirror results in LP0n symmetric mode coupling, while asymmetric irradiation without using the mirror leads to LP1n asymmetric mode coupling for both fiber types. Symmetric irradiation yields far more reproducible LPG in PCF than asymmetric irradiation. On the other hand, the irradiation symmetry has little effect on the reproducibility of LPG inscribed in SMF due to the isotropy of its all-solid cladding structure. The removal of the outer solid cladding of PCF-LPG results in a significant change in its transmission characteristics, which provides rich information on the refractive index perturbation and mode field distrib

Název v anglickém jazyce

Effect of irradiation symmetry of CO2 laser on mode coupling in long-period gratings inscribed in photonic crystal fiber

Popis výsledku anglicky

Long-period gratings (LPG) are inscribed in endlessly single mode (ESM) photonic crystal fiber (PCF) and conventional single mode fiber (SMF) with symmetric and asymmetric CO2 laser irradiation. Transmission measurements and near-field imaging indicate that symmetric index perturbation induced by laser irradiation with the aid of a 120 degrees gold-coated reflecting mirror results in LP0n symmetric mode coupling, while asymmetric irradiation without using the mirror leads to LP1n asymmetric mode coupling for both fiber types. Symmetric irradiation yields far more reproducible LPG in PCF than asymmetric irradiation. On the other hand, the irradiation symmetry has little effect on the reproducibility of LPG inscribed in SMF due to the isotropy of its all-solid cladding structure. The removal of the outer solid cladding of PCF-LPG results in a significant change in its transmission characteristics, which provides rich information on the refractive index perturbation and mode field distrib

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

—

Projekt

<a href="/cs/project/LD11030" target="_blank" >LD11030: Modelování, návrh a charakterizace mikrostrukturních vláken pro optické senzory</a><br>

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

FIBER OPTIC SENSORS AND APPLICATIONS X (Proceedings of SPIE 8722)

ISBN

978-0-8194-9513-6

ISSN

0277-786X

e-ISSN

—

Počet stran výsledku

8

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

BELLINGHAM

Místo konání akce

Baltimore

Datum konání akce

2. 5. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000323340200012