optical fiber gratings–short-period and long-period gratingszero-dispersion wavelengthThis chapter reviews the theory of fiber Bragg gratings. A fiber Bragg grating of a constant refractive index modulation and period therefore has an analytical solution. A complex grating is considered to be a ...
FiberThis chapter reviews the theory of fiber Bragg gratings. A fiber Bragg grating of a constant refractive index modulation and period therefore has an analytical solution. A complex grating is considered to be a concatenation of several small sections, each of constant period and unique ...
obtained,via using the coupled-mode theory of optical guidance and considering the direct increase of fiber refractive index of fiber core after UV exposure.When the new coupled-mode equations are solved,a more accurate result of the Bragg wavelength is obtained,which is coincided with experimental...
In order to analysis the structure of fiber bragg grating(FBG) vibration sensor,a physical model was established and it was equivalent to a simple spring-mass system by doing equivalent transform of stiffness to it.This model was equivalent to a string vibration model of a single particle accord...
Algorithm of modal theory of anisotropic medium gratings 各向异性介质光栅的模式理论算法 www.ilib.cn 4. Modal Theory and Its Applications 模态理论及其应用振动和模态 wenku.baidu.com 5. Fiber Bragg Grating Sensor and Recognition of Structural Damage Based on Strain Modal Theory 光纤布拉格光栅传感器与基...
The coupling-mode theory is deeply studied, and the application of series of fiber gratings in smoothing optic fiber source is analysed. 本文深入研究了光纤光栅的耦合模理论,并分析研究了级联光纤光栅作为增益平坦滤波器件,在光纤光源平坦化中的应用,主要工作如下: 1。 更多例句>> 5...
devices,fiber Bragggratings (FBGs) andlongperiodfiber gratings(LPFGs)arewidelyusedinthefiberoptical communication and sensing fields [1—6]. Correspondingly,manyinvestigationsaremadeon them[7—13].Recently,thetitledfibergratings, especiallythetiltedfiberBragggratings(TFBGs) ...
Translating expertise into effective instruction: The impacts of cognitive task analysis (CTA) on lab report quality and student retention in the biologica... Poor instruction has been cited as a primary cause of attrition from STEM majors and a major obstacle to learning for those who stay [...
On the Application of Coupled Mode Theory for Modeling Fiber Bragg Gratings We remove some ambiguities associated with the coupled mode description of light propagation in fiber Bragg gratings (FBG's). We show, in particular, that ... Martin,McCall - 《Journal of Lightwave Technology》 被引量:...
Thecoupling-mode theoryis deeply studied, and the application of series of fiber gratings in smoothing optic fiber source is analysed. 本文深入研究了光纤光栅的耦合模理论,并分析研究了级联光纤光栅作为增益平坦滤波器件,在光纤光源平坦化中的应用,主要工作如下: 1。