EPJ Web Conf.
Volume 238, 2020EOS Annual Meeting (EOSAM 2020)
|Number of page(s)||2|
|Section||Topical Meeting (TOM) 9- Tapered Optical Fibers, from Fundamental to Applications|
|Published online||20 August 2020|
Transmittance of tapered photonic crystal fibers with absorbing coatings
1 Centro de Investigaciones en Optica, A.C., 37150, Mexico
2 A.A. Kuleshov Mogilev State University, 212009, Mogilev, Belarus
3 Belarussian-Russian University, 212000, Mogilev, Belarus
* Corresponding author: firstname.lastname@example.org
Published online: 20 August 2020
The interaction of the adiabatically tapered photonic crystal fiber fundamental mode with a thin-film absorbing coating, deposited on a surface of a taper waist, on transmission of a tapered fiber is studied. Examples of using this interaction in refractive index sensors and for detection of an adsorption layer with ammonia molecules upon contact of the absorbing coating with a liquid medium are presented. It is obtained that a pronounced sensory effect occurs in the case of a resonant coupling between the fundamental fiber mode and cladding modes localized between photonic crystal fiber air channels and the absorbing coating.
© The Authors, published by EDP Sciences, 2020
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