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Journal articles on the topic 'Integrated Bragg Gratings'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Bartelt, Hartmut. "Trends in Bragg Grating Technology for Optical Fiber Sensor Applications." Key Engineering Materials 437 (May 2010): 304–8. http://dx.doi.org/10.4028/www.scientific.net/kem.437.304.

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Fiber Bragg gratings have found widespread and successful applications in optical sensor systems, e. g. for temperature, strain or refractive index measurements. Such sensor elements are fiber integrated, are applicable under harsh environmental conditions, and can be easily multiplexed. In order to further extend the field of applications, there is a great interest in specifically adapted Bragg gratings, in Bragg grating structures with increased stability, or in the use of special fiber types for grating inscription. The paper discusses such specific concepts for grating inscription, covers

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2

Praena, José Ángel, and Alejandro Carballar. "Chirped Integrated Bragg Grating Design." Photonics 11, no. 5 (2024): 476. http://dx.doi.org/10.3390/photonics11050476.

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We analyze the two classic methods for chirped Integrated Bragg Gratings (IBGs) in Silicon-on-Insulator technology using the transfer matrix method based on the effective refractive index (neff) technique, which translates the geometry of an IBG into a matrix of neff depending on the wavelength. We also implement a procedure that allows engineering of the chirped IBG parameters, given a required bandwidth (BW) and group delay (GD). Finally, a complementary method for designing chirped IBG is proposed, showing a significant improvement in the bandwidth of the device or a moderation in the varia

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Simard, Alexandre D., Yves Painchaud, and Sophie LaRochelle. "Integrated Bragg gratings in spiral waveguides." Optics Express 21, no. 7 (2013): 8953. http://dx.doi.org/10.1364/oe.21.008953.

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Kalizhanova, Aliya, Ainur Kozbakova, Murat Kunelbayev, Zhalau Aitkulov, Anar Utegenova, and Ulzhan Imanbekova. "Sensor Systems for Measuring Force and Temperature with Fiber-Optic Bragg Gratings Embedded in Composite Materials." Journal of Composites Science 8, no. 8 (2024): 321. http://dx.doi.org/10.3390/jcs8080321.

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Currently, there is a lot of interest in smart sensors and integrated composite materials in various industries such as construction, aviation, automobile, medical, information technology, communication, and manufacturing. Here, a new conceptual design for a force and temperature sensor system is developed using fiber-optic Bragg grating sensors embedded within composite materials, and a mathematical model is proposed that allows one to estimate strain and temperature based on signals obtained from the optical Bragg gratings. This is important for understanding the behaviors of sensors under d

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Munster, Petr, and Tomas Horvath. "Intelligent Technical Textiles Based on Fiber Bragg Gratings for Strain Monitoring." Sensors 20, no. 10 (2020): 2951. http://dx.doi.org/10.3390/s20102951.

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In this paper, the concept design of intelligent technical textile blocks implemented with optical fibers that include fiber Bragg gratings for strain and temperature sensing is briefly introduced. In addition to the main design of the system, a design of measurement blocks with integrated fiber Bragg grating elements for strain measurement is also presented. In the basic measurement, the created textile block was tested for deformation sensitivity when a load was applied. Moreover, a unique robust and low profile connector was designed, created and verified. The fibers are terminated with GRI

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6

Dhavamani, Vigneshwar, Srijani Chakraborty, S. Ramya, and Somesh Nandi. "Design and Simulation of Waveguide Bragg Grating based Temperature Sensor in COMSOL." Journal of Physics: Conference Series 2161, no. 1 (2022): 012047. http://dx.doi.org/10.1088/1742-6596/2161/1/012047.

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Abstract With the advancements in the domain of photonics and optical sensors, Fibre Bragg Grating (FBG) sensors, owing to their increased advantages, have been researched widely and have proved to be useful in sensing applications. Moreover, the advent of Photonic Integrated Circuits (PICs) demands the incorporation of optical sensing in waveguides, which can be integrated on silicon photonic chips. In this paper, the design of a sub-micron range Waveguide Bragg Grating (WBG) based temperature sensor with high peak reflectivity and thermal sensitivity is proposed. The flexibility of COMSOL Mu

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Tu, Donghe, Xingrui Huang, Yuxiang Yin, et al. "Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium Niobate." Photonics 9, no. 11 (2022): 828. http://dx.doi.org/10.3390/photonics9110828.

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In this work, we propose a mode-conversion-based chirped Bragg grating on thin-film lithium niobate (TFLN). The device is mainly composed of a 4.7-mm long chirped asymmetric Bragg grating and an adiabatic directional coupler (ADC). The mode conversion introduced by the ADC allows the chirped Bragg grating operates in reflection without using an off-chip circulator. The proposed device has experimentally achieved a total time delay of 73.4 ps over an operating bandwidth of 15 nm. This mode-conversion-based chirped Bragg grating shows excellent compatibility with other devices on TFLN, making it

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8

Sanz-Felipe, Ángel, and Juan A. Vallés. "Critical Design and Operating Parameters of Active Waveguide Bragg Gratings for Laser Performance." Micromachines 15, no. 12 (2024): 1468. https://doi.org/10.3390/mi15121468.

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Active waveguide Bragg gratings (AWBGs) are promising photonic structures that combine the very efficient reflective properties of a Bragg grating with the power amplification character of rare earths. This combination may lead to a potential monolithic laser under the proper conditions. However, the photonic response of these structures highly depends on the grating design and operating parameters, so modeling its response for their laser performance is a must. In this work, a numerical method is employed to calculate the optical power propagation along an Er/Yb-codoped integrated AWBG. A com

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9

Fedotov, M. Yu, and S. A. Vasiliev. "METHODICAL ASPECTS OF EVALUATING THE SENSITIVITY OF FIBER BRAGG GRATINGS TO MECHANICAL AND THERMAL EFFECTS FOR OPTICAL TESTING SYSTEMS OF POLYMER COMPOSITES." Kontrol'. Diagnostika, no. 306 (December 2023): 13–23. http://dx.doi.org/10.14489/td.2023.12.pp.013-023.

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The physical principles of optical non-destructive testing using fiber-optic sensors based on fiber Bragg gratings are considered using two experimental methods. For free fiber Bragg gratings recorded in optical fiber, two new experimental techniques have been developed to determine the linear and nonlinear strain and temperature sensitivity coefficients, as well as the cross sensitivity coefficient, which must also be taken into account when using a quadratic optical control model. Using the developed methods, which take into account the quadratic model of the optical non-destructive testing

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10

Kaur, Manjinder, and Sanjeev Dewra. "Investigation of Photonic Integrated Circuits with Low-Loss Bragg Gratings." Journal of Optical Communications 41, no. 3 (2020): 229–33. http://dx.doi.org/10.1515/joc-2017-0177.

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AbstractThe impact of physical parameters of uniform fiber Bragg grating (U-FBG) like grating period, length of grating, and width of grating on the performance of U-FBG fiber by using finite differences time domain (FDTD) based on surface plasmon polaritons (SPP) is evaluated. An FBG is similar to a distributed Bragg reflector created in a small segment of optical fiber that reflects some particular wavelengths of light and transmits the other wavelengths. It is observed that the maximum received optical power at the reflected port achieved is −1.67×10-6 w/m2 with silver (Ag) profile material

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11

Tang, Mingyuan, Changli Sun, Qian Chen, et al. "20‐2: Broadband Achromatic Templated‐Cholesteric Liquid Crystals Grating." SID Symposium Digest of Technical Papers 55, S1 (2024): 174–76. http://dx.doi.org/10.1002/sdtp.17030.

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Liquid crystal (LC) gratings have played important roles in light field control for the advantages of light weight, low cost, no moving parts, and low power consumption. However, the chromatic aberration limits the bandwidth of LC device and affects the efficiency of grating. To solve the chromatic aberration issue, a broadband wavelengths designable achromatic grating is proposed. Different grating structures are integrated into a single‐layer templated cholesteric liquid crystal (CLC) device and the achromatic diffraction wavelengths of the grating can be freely designed from the visible spe

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12

Zhong, Huajian, Xueya Liu, Cailing Fu, et al. "Quasi-Distributed Temperature and Strain Sensors Based on Series-Integrated Fiber Bragg Gratings." Nanomaterials 12, no. 9 (2022): 1540. http://dx.doi.org/10.3390/nano12091540.

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Two types of series-integrated fiber Bragg gratings (SI-FBGs), i.e., strong and weak SI-FBGs, were inscribed in a standard single-mode fiber (SMF) using the femtosecond laser point-by-point technology. In the SI-FBGs inscribing system, the grating pitch of each FBG and the distance between the two adjacent FBGs in the SI-FBGs can be flexibly controlled by adjusting the inscription parameters. The strong SI-FBGs with different grating pitches and the weak SI-FBGs with an identical grating pitch were employed to successfully measure the temperature distribution in a tube furnace and the strain d

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13

Thursby, G., B. Sorazu, D. Betz, M. Staszewski, and B. Culshaw. "The Use of Fibre Optic Sensors for Damage Detection and Location in Structural Materials." Applied Mechanics and Materials 1-2 (September 2004): 191–96. http://dx.doi.org/10.4028/www.scientific.net/amm.1-2.191.

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The measurement of changes in the properties of ultrasonic Lamb waves propagating through structural material has frequently been proposed as a method for the detection of damage. In this paper we describe work that uses optical fibre sensors to detect the Lamb waves and show that the directional properties of these sensors allow us to not only detect damage, but also to locate it. We look at two types of optical fibre sensor, a polarimetric sensor and the fibre Bragg grating. The polarimetric sensor measures the change in birefringence of a fibre caused by the pressure wave of the ultrasound

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14

Field, James W., Sam A. Berry, Rex H. S. Bannerman, et al. "Highly-chirped Bragg gratings for integrated silica spectrometers." Optics Express 28, no. 14 (2020): 21247. http://dx.doi.org/10.1364/oe.389211.

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15

Simard, A. D., N. Ayotte, Y. Painchaud, S. Bedard, and S. LaRochelle. "Impact of Sidewall Roughness on Integrated Bragg Gratings." Journal of Lightwave Technology 29, no. 24 (2011): 3693–704. http://dx.doi.org/10.1109/jlt.2011.2173556.

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16

Ayotte, Nicolas, Alexandre D. Simard, and Sophie LaRochelle. "Long Integrated Bragg Gratings for SoI Wafer Metrology." IEEE Photonics Technology Letters 27, no. 7 (2015): 755–58. http://dx.doi.org/10.1109/lpt.2015.2391174.

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17

Shishova, Maria, Alexander Zherdev, Dmitrii Lushnikov, and Sergey Odinokov. "Recording of the Multiplexed Bragg Diffraction Gratings for Waveguides Using Phase Mask." Photonics 7, no. 4 (2020): 97. http://dx.doi.org/10.3390/photonics7040097.

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The paper describes a stable method for multiplexed recording of the Bragg diffraction gratings for waveguides using a phase mask. Diffraction waveguides in this experiment were made of photo-thermo-refractive glass. Two types of the phase mask are considered: surface and volume. Their comparison is based on diffraction characteristics of manufactured single and multiplexed Bragg gratings. The experimental results showed the advantage of surface phase mask application. To confirm the efficiency of the proposed method, diffraction waveguides was successfully fabricated and integrated in see-thr

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18

Kefer, Stefan, Gian-Luca Roth, Julian Zettl, Bernhard Schmauss, and Ralf Hellmann. "Sapphire Photonic Crystal Waveguides with Integrated Bragg Grating Structure." Photonics 9, no. 4 (2022): 234. http://dx.doi.org/10.3390/photonics9040234.

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This contribution demonstrates photonic crystal waveguides generated within bulk planar sapphire substrates. A femtosecond laser is used to modify the refractive index in a hexagonal pattern around the pristine waveguide core. Near-field measurements reveal single-mode behavior at a wavelength of 1550 nm and the possibility to adapt the mode-field diameter. Based on far-field examinations, the effective refractive index contrast between the pristine waveguide core and depressed cladding is estimated to 3·10−4. Additionally, Bragg gratings are generated within the waveguide core. Due to the inh

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19

Butt, Muhammad Ali. "Numerical investigation of a small footprint plasmonic Bragg grating structure with a high extinction ratio." Photonics Letters of Poland 12, no. 3 (2020): 82. http://dx.doi.org/10.4302/plp.v12i3.1042.

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In this paper, miniaturized design of a plasmonic Bragg grating filter is investigated via the finite element method (FEM). The filter is based on a plasmonic metal-insulator-metal waveguide deposited on a quartz substrate. The corrugated Bragg grating designed for near-infrared wavelength range is structured on both sides of the waveguide. The spectral characteristics of the filter are studied by varying the geometric parameters of the filter design. As a result, the maximum ER and bandwidth of 36.2 dB and 173 nm is obtained at λBragg=976 nm with a filter footprint of as small as 1.0 x 8.75 µ

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20

Que, Yufei, and Jin Li. "Region-Selective Corrosion for the Fabrication of Tilted Microfiber Bragg Gratings: A Candidate for the Monitoring of Buildings’ Health." Applied Sciences 14, no. 11 (2024): 4707. http://dx.doi.org/10.3390/app14114707.

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Optical fiber gratings can be appropriately packaged and integrated for the real-time monitoring of the structural health of buildings or composite-material films. In this work, a tilted fiber Bragg grating at the micron scale was proposed, designed, and optimized via simulation model analysis using OptiFDTD software. The effects of the grating inclination, grating period, and grating length on the transmission spectrum of the tilted microfiber Bragg grating (TMFBG) were studied. The transmission spectrum’s responses to different refractive indices were simulated and compared. A TFBG was unifo

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21

Burla, Maurizio, Luis Romero Cortés, Ming Li, Xu Wang, Lukas Chrostowski, and José Azaña. "Integrated waveguide Bragg gratings for microwave photonics signal processing." Optics Express 21, no. 21 (2013): 25120. http://dx.doi.org/10.1364/oe.21.025120.

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22

Giuntoni, Ivano, David Stolarek, Jurgen Bruns, Lars Zimmermann, Bernd Tillack, and Klaus Petermann. "Integrated Dispersion Compensator Based on Apodized SOI Bragg Gratings." IEEE Photonics Technology Letters 25, no. 14 (2013): 1313–16. http://dx.doi.org/10.1109/lpt.2013.2264050.

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23

Yorke, Isaac, Peter David Girouard, and Michael Galili. "Analytical model for dispersion measurement in integrated waveguides using michelson interferometry effects." EPJ Web of Conferences 309 (2024): 03006. http://dx.doi.org/10.1051/epjconf/202430903006.

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We present an analytical model for measuring the dispersion of integrated waveguides, leveraging the Michelson interferometry effects observed in devices with chirped Bragg gratings. Building on our previous experimental work, we derived a theoretical framework that simulates the group delay and subsequent dispersion values from the reflected spectrum of a device under test (DUT) which is a linearly chirped Bragg grating fabricated on a silicon-on-insulator (SOI) platform. This model incorporates the principles of interference fringes generated by reflections within the waveguide, enabling a p

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24

Xiao, Jing. "Phase-Shifted Bragg Gratings Based on Hybrid Plasmonics Structure." Advanced Materials Research 901 (February 2014): 21–23. http://dx.doi.org/10.4028/www.scientific.net/amr.901.21.

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An ultra-compact Bragg grating based on hybrid plasmonics is presented to achieve efficient wavelength selection by a resonate cavity, which is promising for many applications in integrated telecommunications systems.

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Cao, Juntian, Chengao Yang, Yihang Chen, et al. "High Performance GaSb-Based DBR Laser with On-Chip Integrated Power Amplifier via Gain-Match Design." Applied Sciences 15, no. 1 (2024): 41. https://doi.org/10.3390/app15010041.

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We reported on a single-longitudinal-mode operated distributed Bragg reflector laser diode emitting at 1950 nm with an on-chip integrated power amplifier. Second-order Chromium–Bragg gratings are carefully designed and fabricated at the end of the ridge waveguide. Achieving a stable single-mode operation with a large injecting current range of 800 mA from 15 °C to 40 °C. The maximum side-mode suppression ratio (SMSR) is up to 42 dB. To increase the output power, an on-chip integrated master oscillator power amplifier (MOPA) is also introduced. MOPA-DBR lasers with different matching configurat

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Cheng, Rui, and Lukas Chrostowski. "Apodization of Silicon Integrated Bragg Gratings Through Periodic Phase Modulation." IEEE Journal of Selected Topics in Quantum Electronics 26, no. 2 (2020): 1–15. http://dx.doi.org/10.1109/jstqe.2019.2929698.

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Jiang, Lingjun, and Zhaoran Rena Huang. "Integrated Cascaded Bragg Gratings for On-Chip Optical Delay Lines." IEEE Photonics Technology Letters 30, no. 5 (2018): 499–502. http://dx.doi.org/10.1109/lpt.2018.2801026.

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Fedotov, M. Yu. "THEORETICAL RESEARCHES OF THE EMBEDDED FIBER-OPTIC SYSTEM OF TESTING DEFORMATION AND TEMPERATURE OF POLYMER COMPOSITES." Kontrol'. Diagnostika, no. 299 (May 2023): 14–25. http://dx.doi.org/10.14489/td.2023.05.pp.014-025.

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This article describes the results of theoretical researches of the system of optical testing of polymer composites by the method of two optical fibers with different sensitivity to deformation and temperature, using integrated arrays of fiber Bragg gratings. The features of the primary data processing from the optical testing system embedded into the composite are considered by the methods of weighted arithmetic mean and approximation by the Gaussian function. The basic relations for calculating the error in determining the temperature and strain with the help of fiber-optic embedded testing

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29

Kalizhanova, Aliya, Ainur Kozbakova, Murat Kunelbayev, Beibut Amirgaliyev, and Zhalau Aitkulov. "Experimental studies of sensors based on fiber Bragg gratings embedded in the internal structure of composite plates." International Journal of Innovative Research and Scientific Studies 8, no. 1 (2024): 81–93. http://dx.doi.org/10.53894/ijirss.v8i1.3574.

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The main purpose of this article is to study the structural characteristics of carbon fiber samples printed on a 3D printer, including embedded sensors, during 3D printing, through numerical and experimental studies. There is a widespread tendency to replace metals with modern composite materials. Various methods can be used to measure the destruction of the composite structure. Fiber Bragg array sensors are known as intelligent localized and global structural condition prediction devices for all kinds of structural applications, especially those using composite materials. In this work, we cre

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Budadin, O. N., W. Yu Kutyurin, A. N. Rykov, and P. I. Gnusin. "MEASUREMENT OF STRAINS IN CARBON-REINFORCED POLYMER COMPOSITE PRODUCTS AT ELEVATED TEMPERATURES USING FIBER-OPTIC SENSORS." Kontrol'. Diagnostika, no. 255 (2019): 14–19. http://dx.doi.org/10.14489/td.2019.09.pp.014-019.

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The main task of the contribution was the estimation of the possibility of using Fiber Bragg Gratings as a mean of measuring the deformation in standard carbon fiber samples at elevated temperatures. The article presents the results of experiments on the measurement of deformations in a carbon sample using Fiber Bragg Gratings on an optical fiber. Deformations were measured in the process of stretching the sample at different temperatures (range from 20 to 140 °C). It is shown that FBGs integrated into the sample material give more stable, reproducible readings, unlike to inlay on the outer su

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Kalizhanova, Aliya, Ainur Kozbakova, Murat Kunelbayev, Timur Kartbayev, and Gulzhan Kashaganova. "Research on the Relative Displacement Distribution of a Composite Plate with Built-In FBG Sensors." Journal of Composites Science 9, no. 5 (2025): 198. https://doi.org/10.3390/jcs9050198.

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The paper studies the distribution of relative displacement of a composite plate with integrated fiber Bragg gratings. The analysis of the methods for manufacturing composite plates with embedded optical fibers containing FBG sensors, as well as the spectral characteristics of the gratings under various bending conditions, are performed. The effect of sensor arrangement on the accuracy of determining stresses and relative elongations of the material is experimentally studied. The features of spectral shifts that occur under non-uniform stresses are revealed, which can reduce the accuracy of me

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Čehovski, Marko, Jing Becker, Ouacef Charfi, Hans-Hermann Johannes, Claas Müller, and Wolfgang Kowalsky. "Single-Mode Polymer Ridge Waveguide Integration of Organic Thin-Film Laser." Applied Sciences 10, no. 8 (2020): 2805. http://dx.doi.org/10.3390/app10082805.

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Organic thin-film lasers (OLAS) are promising optical sources when it comes to flexibility and small-scale manufacturing. These properties are required especially for integrating organic thin-film lasers into single-mode waveguides. Optical sensors based on single-mode ridge waveguide systems, especially for Lab-on-a-chip (LoC) applications, usually need external laser sources, free-space optics, and coupling structures, which suffer from coupling losses and mechanical stabilization problems. In this paper, we report on the first successful integration of organic thin-film lasers directly into

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Sun, Hao, Yue Wang, and Lawrence R. Chen. "Integrated Discretely Tunable Optical Delay Line Based on Step-Chirped Subwavelength Grating Waveguide Bragg Gratings." Journal of Lightwave Technology 38, no. 19 (2020): 5551–60. http://dx.doi.org/10.1109/jlt.2020.3017496.

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Hruschka, Crassen, Udo Barabas, and Lutz Gohler. "Optical narrow band filter without resonance's." Facta universitatis - series: Electronics and Energetics 17, no. 2 (2004): 209–17. http://dx.doi.org/10.2298/fuee0402209h.

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This paper introduces an optical wave filter, which uses gratings at 45? or 135? inclined grating lines that avoid any resonance's. Therefore, many more options to form the filter shape exist. In general, the filter design can be traced to that of transversal filters (finite impulse response filter, FIR filter). Such an integrated optical wave filter is characterized by steep filter slopes and a narrow pass band (less then 01nm) combined with a high stop band attenuation (more than 40dB) and a linear phase response in the pass band. Compared to conventional Bragg grating filters, the inclined

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Kefer, Stefan, Theresia Sauer, Steffen Hessler, Michael Kaloudis, and Ralf Hellmann. "Microstructure-Based Fiber-To-Chip Coupling of Polymer Planar Bragg Gratings for Harsh Environment Applications." Sensors 20, no. 19 (2020): 5452. http://dx.doi.org/10.3390/s20195452.

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This article proposes and demonstrates a robust microstructure-based fiber-to-chip coupling scheme for planar Bragg grating devices. A polymer planar Bragg grating substrate is manufactured and microstructured by means of a micromilling process, while the respective photonic structures are generated by employing a sophisticated single-writing UV-exposure method. A stripped standard single-mode fiber is inserted into the microstructure, which is filled with a UV-curable adhesive, and aligned with the integrated waveguide. After curing, final sensor assembly and thermal treatment, the proposed c

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Cheng, Rui, and Lukas Chrostowski. "Multichannel photonic Hilbert transformers based on complex modulated integrated Bragg gratings." Optics Letters 43, no. 5 (2018): 1031. http://dx.doi.org/10.1364/ol.43.001031.

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Rivas, Luis M., Michael J. Strain, David Duchesne, et al. "Picosecond linear optical pulse shapers based on integrated waveguide Bragg gratings." Optics Letters 33, no. 21 (2008): 2425. http://dx.doi.org/10.1364/ol.33.002425.

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38

Kefer, Stefan, Tobias Limbach, Natalie Pape, Kathrin Klamt, Bernhard Schmauss, and Ralf Hellmann. "Birefringence in Injection-Molded Cyclic Olefin Copolymer Substrates and Its Impact on Integrated Photonic Structures." Polymers 16, no. 2 (2024): 168. http://dx.doi.org/10.3390/polym16020168.

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This contribution quantifies the birefringence within injection-molded cyclic olefin copolymer plates and discusses its impact on the mechanical properties of the plates. It also focuses on the impact of birefringence on integrated waveguides and Bragg gratings and provides fabrication guidelines for such structures. The anisotropy in all three dimensions of the workpiece is examined by means of polarimetry and a prism coupler. It is found that the birefringence is inhomogenously distributed within the workpieces, whereas the maximum birefringence not only varies locally, but also depends on t

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Nedjalkov, Antonio, Jan Meyer, Alexander Gräfenstein, et al. "Refractive Index Measurement of Lithium Ion Battery Electrolyte with Etched Surface Cladding Waveguide Bragg Gratings and Cell Electrode State Monitoring by Optical Strain Sensors." Batteries 5, no. 1 (2019): 30. http://dx.doi.org/10.3390/batteries5010030.

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In this scientific publication, a new sensor approach for status monitoring, such as state of charge and state of health, of lithium ion batteries by using special Bragg gratings inscribed into standard optical glass fibers is presented. In addition to well-known core gratings, embedded into the anode of 5 Ah lithium ion pouch cells as a strain monitoring unit, the manufacturing of a surface cladding waveguide Bragg grating sensor incorporated into the cell’s separator, that is sensitive to changes of the refractive index of the surrounding medium, is demonstrated. On the basis of the experime

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Tan, Mengying, Ning Zhou, Yao Cheng, Jiangwen Wang, Weihua Zhang, and Dong Zou. "A temperature-compensated fiber Bragg grating sensor system based on digital filtering for monitoring the pantograph–catenary contact force." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 233, no. 2 (2018): 187–200. http://dx.doi.org/10.1177/0954409718786143.

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Optical sensors based on fiber Bragg gratings have become an important type of sensing element for strain measurements. In this study, fiber Bragg grating strain sensors and corresponding reference temperature sensors were integrated into a pantograph strip. The results of an online test indicated that the temperature of the pantograph strip impacting the strain measurement reaches about 80 ℃ while the vehicle was running. In addition, Fourier analysis showed that the energies of the temperature measurement signals dominated the relatively low-frequency band (less than 0.02 Hz), whereas the st

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Portosi, Vincenza, Dario Laneve, Mario Christian Falconi, and Francesco Prudenzano. "Advances on Photonic Crystal Fiber Sensors and Applications." Sensors 19, no. 8 (2019): 1892. http://dx.doi.org/10.3390/s19081892.

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In this review paper some recent advances on optical sensors based on photonic crystal fibres are reported. The different strategies successfully applied in order to obtain feasible and reliable monitoring systems in several application fields, including medicine, biology, environment sustainability, communications systems are highlighted. Emphasis is given to the exploitation of integrated systems and/or single elements based on photonic crystal fibers employing Bragg gratings (FBGs), long period gratings (LPGs), interferometers, plasmon propagation, off-set spliced fibers, evanescent field a

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Emmerson, G. D., C. B. E. Gawith, S. P. Watts, et al. "All-UV-written integrated planar Bragg gratings and channel waveguides through single-step direct grating writing." IEE Proceedings - Optoelectronics 151, no. 2 (2004): 119. http://dx.doi.org/10.1049/ip-opt:20040182.

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43

Noorbahrin, N. A. S., S. N. F. Mohd Asseri, H. Ahmad, et al. "Exploration of Fibre Bragg Grating for Potential Breathing Behaviour Monitoring System." Journal of Physics: Conference Series 2627, no. 1 (2023): 012013. http://dx.doi.org/10.1088/1742-6596/2627/1/012013.

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Abstract An optical-fiber based temperature sensor for the monitoring of breathing behaviour during different physical activities is proposed and demonstrated. The proposed sensor utilizes Fiber Bragg Gratings (FBGs) to detect temperature changes in breath, which are then correlated to the breathing behaviour and thus able to profile the patient for breathing abnormalities. The proposed sensor is cost-effective and light-weight, and can be integrated into wearable devices for real-time monitoring of the patient.

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44

Saghaei, Hamed, Payam Elyasi, and Bhavin J. Shastri. "Sinusoidal and rectangular Bragg grating filters: Design, fabrication, and comparative analysis." Journal of Applied Physics 132, no. 6 (2022): 064501. http://dx.doi.org/10.1063/5.0098923.

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In this paper, we compare the characteristics of several waveguide Bragg gratings (WBGs) with sinusoidal and rectangular corrugated sidewalls in high confinement integrated optics. Our measurements confirm the performance of both the rectangular and sinusoidal grating as band-rejection filters for TE-polarized signals in the telecom C-band. These measurements demonstrate record high extinction ratios of 35 and 28.91 dB for sinusoidal and rectangular WBGs with a rejection bandwidth as narrow as 4.42 and 6.165 nm. The simulation results and measurements show that the filter bandwidth and couplin

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WANG, YiPing, XueYa LIU, Shen LIU, et al. "Temperature-insensitive vector bending sensor based on parallel-integrated fiber Bragg gratings." SCIENTIA SINICA Technologica 51, no. 2 (2020): 241–48. http://dx.doi.org/10.1360/sst-2020-0276.

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46

Guo, Qi, Zong-Da Zhang, Zhong-Ming Zheng, et al. "Parallel-Integrated Sapphire Fiber Bragg Gratings Probe Sensor for High Temperature Sensing." IEEE Sensors Journal 22, no. 6 (2022): 5703–8. http://dx.doi.org/10.1109/jsen.2022.3149508.

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47

Choi, Duk-Yong, Steve Madden, Andrei Rode, et al. "Integrated shadow mask for sampled Bragg gratings in chalcogenide (As_2S_3) planar waveguides." Optics Express 15, no. 12 (2007): 7708. http://dx.doi.org/10.1364/oe.15.007708.

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Cheng, Rui, Han Yun, Stephen Lin, Ya Han, and Lukas Chrostowski. "Apodization profile amplification of silicon integrated Bragg gratings through lateral phase delays." Optics Letters 44, no. 2 (2019): 435. http://dx.doi.org/10.1364/ol.44.000435.

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Weisen, Mathias J., Matthew T. Posner, James C. Gates, Corin B. E. Gawith, Peter G. R. Smith, and Peter Horak. "Low-loss wavelength-selective integrated waveguide coupler based on tilted Bragg gratings." Journal of the Optical Society of America B 36, no. 7 (2019): 1783. http://dx.doi.org/10.1364/josab.36.001783.

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Cheng, Rui, Ya Han, and Lukas Chrostowski. "Characterization and compensation of apodization phase noise in silicon integrated Bragg gratings." Optics Express 27, no. 7 (2019): 9516. http://dx.doi.org/10.1364/oe.27.009516.

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