High-precision point-by-point fiber Bragg grating inscription

Przhiialkovskii, Dmitrii; Butov, Oleg V.

doi:10.1016/j.rinp.2021.104902

Cited by 17 publications

(3 citation statements)

References 40 publications

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“…This disadvantage is devoid of the method of femtosecond inscribing by laser radiation in the visible, or IR, range. In this case, the removal of the coating is not required, which is noted in [7,8]. However, both methods for manufacturing large FBG arrays require significant, often unjustified data, labor costs.…”

Section: Introductionmentioning

confidence: 99%

High Efficient Random Laser with Cavity Based on the Erbium-Doped Germanophosphosilicate Artificial Rayleigh Fiber

et al. 2023

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The Erbium “random” laser, based on the artificial Rayleigh fiber, has been comparatively studied in detail under two different pump conditions: 974.5 and 1485 nm pumping wavelengths. The artificial Rayleigh 7-m-long fiber was used as a laser cavity, it was formed by the ultraviolet (UV) inscription of the uniform array of the weakly reflective fiber Bragg grating (FBG) during the fiber drawing process. The UV photosensitivity of the Erbium-doped fiber originated from the specially developed (germanophosphosilicate) core glass composition. The emission spectrum of the fabricated “random” fiber laser had a single narrow peak at the 1548 nm wavelength. It was clearly revealed that the extension of the laser cavity by the separate wavelength-matched 90%-reflective FBG resulted in a significant laser efficiency growth. The highest laser slope efficiency of 33% and the laser output power of 80 mW were reached in the FBG-modified cavity at the 974.5-nm-wavelength pumping. The continuous-wave operation mode of this laser has been confirmed. The laser linewidth value measured by the delayed self-heterodyne technique was about 550 Hz.

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Section: Introductionmentioning

confidence: 99%

High Efficient Random Laser with Cavity Based on the Erbium-Doped Germanophosphosilicate Artificial Rayleigh Fiber

et al. 2023

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“…The wavelength reflected in the fiber core is called the Bragg wavelength (𝜆𝜆 𝐵𝐵 ) [6]. The value of the wavelength can change due to temperature fluctuations, deformation, and vibration [5], [7], [8]. Changes in wavelength are used for the basic principle of using FBG sensor technology.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Fiber Bragg Grating (FBG) for Weight Measurement System

Fatimah

Hanto²,

Nugroho

et al. 2023

AMM

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Currently, FBG sensor has been developed in many applications due to its wavelength is sensitive to pressure change. This study aims to analyze the FBG wavelength shifting due to an applied load. In this research, the FBG was placed transversely right in the middle of the specimen that was made by using silicon rubber with thicknesses of 7 mm and 14 mm. The FBG wavelength in the two specimens was investigated by an interrogator when the load is put on to the specimens in three variations: without load, 5 kg, and 10 kg. The result show that the shift of FBG wavelength in specimen with the same thickness is proportional to load increasing. Furthermore, the test specimen with a thickness of 7 mm is more sensitive than 14 mm. Accordingly, the specimen with a thickness of 7 mm is a good option to be used as a weight measurement system.

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“…Within this context, the irradiation of the fiber in discrete and periodic areas with UV light generates permanent changes in the chemical structure of the core material that results in an increment of the refractive index. 180 These periodic modulations are known as fiber Bragg gratings (FBGs) and present two main advantages compared to geometrically-modified fibers: the mechanical resistance of the fiber is minimally altered, and the redirection of light to the cladding becomes a resonant effect that only takes place at certain wavelengths. In the next section, different evanescentwave biosensing configurations are presented with special emphasis on FBGs, since they are a particularly relevant background for this thesis.…”

Section: Principles Of Waveguide-based Sensingmentioning

confidence: 99%

Biogratings: Diffractive Transducers for Biosensing in Photonic Platforms

Juste Dolz

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High-precision point-by-point fiber Bragg grating inscription

Cited by 17 publications

References 40 publications

High Efficient Random Laser with Cavity Based on the Erbium-Doped Germanophosphosilicate Artificial Rayleigh Fiber

High Efficient Random Laser with Cavity Based on the Erbium-Doped Germanophosphosilicate Artificial Rayleigh Fiber

Characterization of Fiber Bragg Grating (FBG) for Weight Measurement System

Biogratings: Diffractive Transducers for Biosensing in Photonic Platforms

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