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Core-cladding mode coupling and recoupling in photonic crystal fiber for enhanced overlap of evanescent field using long-period gratings
- 1.0350478 - ÚFE 2011 RIV US eng J - Journal Article
He, Z. - Zhu, Y. - Kaňka, Jiří - Du, H.
Core-cladding mode coupling and recoupling in photonic crystal fiber for enhanced overlap of evanescent field using long-period gratings.
Optics Express. Roč. 18, č. 2 (2010), s. 507-512. ISSN 1094-4087
R&D Projects: GA ČR GA102/08/1719
Institutional research plan: CEZ:AV0Z20670512
Keywords : Photonic crystal fiber * Long-period grating * Fiber-optic evanescent sensor
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering
Impact factor: 3.749, year: 2010
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.
Permanent Link: http://hdl.handle.net/11104/0190477
Number of the records: 1