Resonances in coated long period fiber gratings and cladding removed multimode optical fibers: a comparative study

被引：30
|
作者：
Del Villar, Ignacio [1 ]
Zamarreno, Carlos R. [1 ]
Hernaez, Miguel [1 ]
Arregui, Francisco J. [1 ]
Matias, Ignacio R. [1 ]
机构：
[1] Univ Publ Navarra, Dept Ingn Elect & Elect, Pamplona 31006, Spain
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 19期
关键词：
SURFACE-PLASMON RESONANCE; OVERLAY DEPOSITION; REFRACTIVE-INDEX; PH-SENSORS; SENSITIVITY; LAYER; FILMS;
D O I：
10.1364/OE.18.020183
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Two optical fiber devices have been coated in parallel: a long period fiber grating (LPFG) and a cladding-removed multimode optical fiber (CRMOF). The progressive coating of the LPFG by means of the layer-by-layer electrostatic-self-assembly, permits to observe a resonance wavelength shift of the attenuation bands in the transmission spectrum. The cause of this wavelength shift is the reorganization of the cladding mode effective indices. The cause of this modal reorganization can be understood with the results observed in the CRMOF coated in parallel. A lossy-mode-resonance (LMR) is generated in the same wavelength range of the LPFG attenuation bands analyzed. Moreover, the thickness range where the wavelength shift of the LPFG attenuation bands occurs coincides exactly with the thickness range where the LMR can be visualized in the transmission spectrum. These phenomena are analyzed theoretically and corroborated experimentally. The advantages and disadvantages of both optical fiber devices are explained. (C) 2010 Optical Society of America
引用
收藏
页码：20183 / 20189
页数：7
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