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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Effect of irradiation symmetry of CO2 laser on mode coupling in long-period gratings inscribed in photonic crystal fiber
Original language description
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
Czech name
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Czech description
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Project
<a href="/en/project/LD11030" target="_blank" >LD11030: Modelling, design and characterization of microstructured fibers for optical sensors</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
FIBER OPTIC SENSORS AND APPLICATIONS X (Proceedings of SPIE 8722)
ISBN
978-0-8194-9513-6
ISSN
0277-786X
e-ISSN
—
Number of pages
8
Pages from-to
—
Publisher name
SPIE
Place of publication
BELLINGHAM
Event location
Baltimore
Event date
May 2, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000323340200012

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