In this paper we show that spectra can be acquired for each pixel in a confocal spatial scan by using a fast spectrometer based on an array of strong, broadband visible fiber Bragg gratings. The coupled mode theory is a ...
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The paper investigates the impact of strain gradient on the reflected spectrum of fiber Bragg gratings (FBGs) of varying lengths (5, 10, and 15 mm), inscribed using two techniques: phase
Despite the fact that the index modulation of the vast majority of fiber-based gratings is essentially sinusoidal. There are several FBG structures; however, in this work, an experiment and analysis
The purpose of this paper is to simulate and analyze the spectral characteristics of the fiber Bragg grating (FBG) to obtain narrow bandwidth and minimization side lobes in reflectivity.
In this paper, we studied the basic characteristics of tilted fiber Bragg gratings (TFBGs), inscribed line-by-line. Experimental results showed that if the TFBGs were located within different
In this work, we investigate the sensing performance of Fiber Bragg Gratings (FBGs) engineered to operate near EPs through precise structural tuning. By aligning the reflection spectrum edges with
Based on the coupled mode theory of fiber Bragg grating, OptiGrating software was used to simulate the main factors affecting the reflection spectrum of fiber B
Abstract—An ultra-short fiber Bragg grating with a grating length of 0.2 mm and constant grating period (uniform FBG) is proposed as an integrated dispersive element for spectral analysis in a single-mode
ABSTRACT: The spectral response of the uniform FBG with different grating parameters such as grating length and index change are provided and discussed. The coupled mode theory is a suitable tool for
1. Introduction Fiber Bragg Grating (FBGs) are widely recognized as pivotal elements within the domain of optical sensing because of their miniature footprint, inherent immunity to
The focus of this paper is on interferometric systems that utilize spectral interferometry based on minimum-phase functions (MPFs) to fully characterize any fiber-Bragg-grating (FBG) spectra without
The proposed Fiber Bragg Grating (FBG) sensor investigated spectral features applying finite element numerical (FEM) analysis method. The wave optics module applied the Maxwell''s