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Core-cladding mode coupling and recoupling in photonic crystal fiber for enhanced overlap of evanescent field using long-period gratings
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SYSNO ASEP 0350478 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Core-cladding mode coupling and recoupling in photonic crystal fiber for enhanced overlap of evanescent field using long-period gratings Author(s) He, Z. (US)
Zhu, Y. (US)
Kaňka, Jiří (URE-Y)
Du, H. (US)Number of authors 4 Source Title Optics Express. - : Optical Society of America - ISSN 1094-4087
Roč. 18, č. 2 (2010), s. 507-512Number of pages 6 s. Language eng - English Country US - United States Keywords Photonic crystal fiber ; Long-period grating ; Fiber-optic evanescent sensor Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering R&D Projects GA102/08/1719 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20670512 - URE-Y (2005-2011) UT WOS 000273860400012 DOI 10.1364/OE.18.000507 Annotation Excitation of cladding modes was achieved using long period gratings (LPGs) inscribed in a photonic crystal fiber (PCF) by CO2 laser irradiation. Core-cladding mode coupling and recoupling resulted in marked improvement in the evanescent field overlap throughout the air channels in the PCF-LPG. Our numerical simulation has shown that design optimization of the PCF-LPG configuration can lead to a field power overlap as high as 22% with a confinement loss of less than 1 dB/m in the cladding mode. Workplace Institute of Radio Engineering and Electronics Contact Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Year of Publishing 2011
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