Results 31 to 40 of about 15,067 (255)
Photonic integrated circuits for terahertz source generation
IET Optoelectronics, 2020 The authors introduce four kinds of terahertz photonics components based on photonic integrated circuits (PICs). A PIC‐based integrated optoelectronic synthesiser for THz communications is described, which can be tuned continuously over the range 0.254–2.
Lianping Hou +3 more
doaj +1 more source
Ultra-high-sensitivity two-dimensional bend sensor [PDF]
, 2006 A multicore fibre Fabry-Perot-based strain sensor interrogated with tandem interferometry for bend measurement is described. Curvature in two dimensions is obtained by measuring the difference in strain between three co-located low finesse Fabry-Perot ...
Barton, J S +4 more
core +1 more source
An Optical Fibre Depth (Pressure) Sensor for Remote Operated Vehicles in Underwater Applications
Sensors, 2017 A miniature sensor for accurate measurement of pressure (depth) with temperature compensation in the ocean environment is described. The sensor is based on an optical fibre Extrinsic Fabry-Perot interferometer (EFPI) combined with a Fibre Bragg Grating ...
Dinesh Babu Duraibabu +8 more
doaj +1 more source
Sensors, 2022 In this paper, with the final aim of shape sensing for a morphing aircraft wing section, a developed multimodal shape sensing system is analysed. We utilise the method of interrogating a morphing wing section based on the principles of both hybrid ...
Nakash Nazeer +2 more
doaj +1 more source
Evaluation of the optical switching characteristics of erbium-doped fibres for the development of a fibre Bragg grating sensor interrogator [PDF]
, 2014 A polling topology that employs optical switching based on the properties of erbium-doped fibres (EDFs) is used to interrogate an array of FBGs. The properties of the EDF are investigated in its pumped and un-pumped states and the EDFs’ switching ...
Bhattacharyya, Debabrata +7 more
core +1 more source
Magnetically programmable fibre Bragg gratings
Electronics Letters, 1998 An attractive force between magnetic poles was utilised to produce significant wavelength shifts in fibre Bragg gratings. Programmable magnets were used to controllably strain and shift the wavelength of the grating by more than 15 nm. The wavelength tuning is fast and the device requires no power to maintain the shifted wavelengths.
S. Jin +4 more
openaire +1 more source
RTM production monitoring of the A380 hinge arm droop nose mechanism: a multi-sensor approach [PDF]
, 2016 his research presents a case study of production monitoring on an aerospace composite component: the hinge arm of the droop nose mechanism on the Airbus A380 wing leading edge.
Chiesura, Gabriele +7 more
core +2 more sources
Etched Polymer Fibre Bragg Gratings
Photonics and Fiber Technology 2016 (ACOFT, BGPP, NP), 2016 Recently we initiated a new research direction for high-sensitivity and high-reflectivity Bragg grating fabrication based on etched polymer optical fibre, here we report the recent research developments on etched polymer fibre Bragg gratings.
Kishore Bhowmik +4 more
openaire +2 more sources
Fatigue Crack Propagation Monitoring Using Fibre Bragg Grating Sensors
Vibration, 2021 The paper presents the analysis of the possibility of fatigue crack detection and monitoring its propagation process using fibre Bragg grating (FBG) sensors.
Magdalena Mieloszyk
doaj +1 more source
In situ method for power re-equalization of wavelength pulses inside of OCDMA codes [PDF]
, 2011 A simple in-situ method to equalize power among individual wavelengths pulses representing two-dimensional wavelength-hopping time-spreading OCDMA code originally generated by a fibre Bragg grating-based OCDMA encoder is presented.
Glesk, Ivan +4 more
core +1 more source