Results 21 to 30 of about 58,600 (289)
High-temperature type IIa gratings in 12-ring photonic crystal fibre with germanosilicate core [PDF]
Journal of the European Optical Society-Rapid Publications, 2008 The inscription of efficient Bragg gratings (> 20 dB) in 12-ring photonic crystal fibre with a germanosilicate doped core without the need for hydrogen loading using 193 nm is demonstrated.
Cook K., Pohl A.A.P., Canning J.
doaj +1 more source
Sensors, 2021 This work presents an extensive, comparative study of the gamma and electron radiation effects on the behaviour of femtosecond laser-inscribed fibre Bragg gratings (FBGs) using the point-by-point and plane-by-plane inscription methods.
Antreas Theodosiou +10 more
doaj +1 more source
3D printed FBG based sensor for vital signal monitoring – Influence of the infill printing parameters [PDF]
EPJ Web of Conferences, 2022 The fused deposition modelling technique has been used in the production of strain sensors in which fibre Bragg gratings (FBGs) are encapsulated during the 3D printing process.
Ferreira Alexandra +7 more
doaj +1 more source
Review on Strain Monitoring of Aircraft Using Optical Fibre Sensor [PDF]
International Journal of Electronics and Telecommunications, 2022 Structural health monitoring of aircraft assures safety, integrity and reduces cost-related concerns by reducing the number of times maintenance is required. Under aerodynamic loading, aircraft is subjected to strain, in turn causing damage and breakdown.
Monica Murthy N, Priyanka Desai Kakade
doaj +1 more source
A simple method for fabricating phase-shifted fibre Bragg gratings with flexible choice of centre wavelength [PDF]
, 2009 A simple technique for fabricating phase-shifted fibre Bragg gratings (PSFBGs) without the use of a phase-shifted phase mask is presented. Two, 3-mm long, standard fibre Bragg gratings (FBGs) were inscribed sequentially in singlemode fibre at the same
Chehura, Edmon +2 more
core +1 more source
Regenerated Fibre Bragg Gratings [PDF]
, 2010 Strong regenerated gratings (~18dB, L = 5cm) that can withstand temperatures in excess of 1200°C have been produced. These gratings have a number of potential applications from monitoring furnace temperatures in various fields, to high intensity optical field-resistant gratings for high peak power fibre lasers.
Canning, John +5 more
openaire +2 more sources
A High-Temperature Fiber Sensor Using a Low Cost Interrogation Scheme
Sensors, 2013 Regenerated Fibre Bragg Gratings have the potential for high-temperature monitoring. In this paper, the inscription of Fibre Bragg Gratings (FBGs) and the later regeneration process to obtain Regenerated Fiber Bragg Gratings (RFBGs) in high-birefringence
Salvador Sales, David Barrera
doaj +1 more source
Grating formation in BGG31 glass by UV exposure [PDF]
, 1999 A three-dimensional index variation grating in bulk BGG31 glass written using neither hydrogen loading nor germanium doping is demonstrated. This material is useful for fabricating ion-exchanged waveguides, and its photosensitivity to ultraviolet (UV ...
Geraghty, D. F. +5 more
core +1 more source
Nonlinear switching in fibre Bragg gratings
Optics Express, 1998 We report on our recent experiments on nonlinear switching in fibre Bragg gratings. Using an all-fibre source we show an increase in transmission of a FBG from 4% to 40% at high powers. This switching is associated with the formation of gap solitons inside the grating.
Broderick, N.G.R. +2 more
openaire +3 more sources
Journal of Physics: Photonics, 2019 In this paper, various types of high temperature fibre Bragg gratings (FBGs) are reviewed, including recent results and advancements in the field. The main motivation of this review is to highlight the potential of fabricating thermally stable refractive
M. Cavillon +8 more
semanticscholar +1 more source