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Despite the improvements in optical fiber manufacturing and advancements in the field in general, basic optical components such as mirrors, wavelength filters, and partial reflectors have been a challenge
A low-cost optical fiber Bragg grating-based microphone is presented. The sensing system makes use of an intensitybased interrogation approach, with a fixed-wavelength laser source
Femtosecond lasers write Bragg gratings as wavelength-selective mirrors in fibers and glasses. Applications range from quantum communication to high-power lasers.
Mathematical models for the realisation, characterization, and simulation of fiber Bragg gratings (FBGs) are required to design gratings for various purposes. In this article, a review of the
Bragg gratings manufactured by several different techniques are compared to demonstrate their suitability for different types of sensing applications. Several application focused examples are also
Here, we describe a method for producing locally micro-structured fiber Bragg gratings (LMFGB) by fs-laser machining. This technique enables the precise and reproducible ablation of cladding material to
In this paper, we present a design framework for micro-engineering the temperature coefficients of FBGs over specified temperature ranges, while maintaining low loss and good spectral
In this paper, a theoretical and numerical analysis of novel in-fiber photonic devices based on a structured chirped fiber Bragg gratings (CFBGs) for sensing and communication
Abstract: Common methods for modeling, analysis, and synthesis of fiber Bragg gratings are reviewed in detail, including coupled-mode theory, transfer matrix methods, and layer-peeling algorithms.
These filters show great promise for applications reliant on high-frequency resolution noise suppression, such as quantum networking, and highlight the opportunities for the versatility,
In this chapter, we introduce and review the technology of Bragg gratings in optical fibres. We detail the aspect of photosensitivity in optical fibres, the properties of Bragg gratings, and the
To fabricate chirped fiber Bragg grating (CFBG) with high reflectivity and accurately controlled chirp profile with low cost, we develop the CFBG fabrication technique based on strain gradient: fabricating
We propose an advanced genetic algorithm (GA) to design fiber Bragg gratings (FBGs) with given fabrication constraints. Our GA is enhanced by a new Fourier-series-based real-valued encoding to
A number of devices have been designed and demonstrated for in-fiber optical signal processing. In this Special Issue, all-optical arbitrary-order Hilbert transformers have been proposed and designed
This section details the process by which three specific fiber Bragg gratings (very important milestones for this efort) were fabricated and characterized. The process featured a back-and-forth relationship
All-fiber filters with multiple narrow, flat-top channels are designed and fabricated, by incorporating both the phase sampling technique and multiple $pi $ phase shifts into a fiber Bragg
Fiber Bragg gratings have attracted extensive attention and research in the field of fiber optic sensors due to their low cost, ease of processing and improvement, and excellent sensing
This paper discusses the role and advancements of fibre Bragg gratings (FBGs) within the field of fibre optics, highlighting their significance in telecommunications
FBG sensors can be successfully employed in structural monitoring for seismic applications and damaging diagnostics. Proper sensor packaging allows embedding in concrete for durable installation.
In this study, we present an AI- powered FLI system that enables automated, stable, and efficient FBG fabrication. By integrating a Multi-Layer Perceptron (MLP) model for real-time fabrication position