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  • 1. Candiani, A
    et al.
    Margulis, Walter
    RISE., Swedish ICT, Acreo.
    Sterner, Carola
    RISE., Swedish ICT, Acreo.
    Konstantaki, M
    Pissadakis, S
    Phase-shifted Bragg microstuctured optical fibre grating utilizing infiltrated ferrofluidics2011Ingår i: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 36, nr 13, s. 2548-50Artikel i tidskrift (Refereegranskat)
  • 2. Drummond, M V
    et al.
    Nogueira, R N
    Violasa, M
     Monteiro, P P
    Sterner, Carola
    RISE., Swedish ICT, Acreo.
    Fonjallaz, P-Y
    All-optical generation of 40 Gb/s single sidebsignals using a fiber Bragg grating2010Ingår i: Optics Communication, Vol. 283, nr 12Artikel i tidskrift (Refereegranskat)
  • 3.
    Noharet, Bertrand
    et al.
    RISE., Swedish ICT, Acreo.
    Sterner, Carola
    RISE., Swedish ICT, Acreo.
    Irebo, Tania
    RISE - Research Institutes of Sweden (2017-2019), Material och produktion, KIMAB.
    Gurell, Jonas
    RISE - Research Institutes of Sweden (2017-2019), Material och produktion, KIMAB.
    Bengtson, Arne
    RISE - Research Institutes of Sweden (2017-2019), Material och produktion, KIMAB.
    Vainik, Rein
    RISE - Research Institutes of Sweden (2017-2019), Material och produktion, KIMAB.
    Karlsson, Håkan
    Cobolt AB, Sweden.
    Illy, Euzabeth
    Cobolt AB, Sweden.
    A compact LIBS system for industrial applications2015Ingår i: Proceedings of SPIE: Photonic Instrumentation Engineering II / [ed] Yakov G. Soskind, Craig Olson, SPIE , 2015, Vol. 9369, artikel-id 936904Konferensbidrag (Refereegranskat)
    Abstract [en]

    In recent years, laser-induced breakdown spectroscopy (LIBS) has been established as a promising analytical tool for online chemical analysis. The emitted light spectrum is analyzed for instantaneous determination of the elemental composition of the sample, enabling on-line classification of materials. Two major strengths of the technique are the possibilities to perform both fast and remote chemical analysis to determine the elemental composition of the samples under test. In order to reduce the size of LIBS systems, the use of a compact Q-switched diode-pumped solid-state laser (DPSSL) in a LIBS system is evaluated for the industrial sorting of aluminium alloys. The DPSSL, which delivers 150μJ pulses of high beam quality at more than 7KHz repetition rate, provides irradiance on the target that is appropriate for LIBS measurements. The experimental results indicate that alloy classification and quantitative analysis are possible on scrap aluminium samples placed 50 cm apart from the focusing and collecting lenses, without sample preparation. Similar calibration curves and limits of detection are obtained for traditional high-energy low-frequency flashlamp-pumped and low-energy high-frequency diode-pumped lasers, showing the applicability of compact diode-pumped lasers for industrial LIBS applications.

  • 4. Pissadakis, S
    et al.
    Candiani, A
    Sterner, Carola
    RISE., Swedish ICT, Acreo.
    Margulis, W
    RISE., Swedish ICT, Viktoria.
    Microstructured optical fiber gratings for magnetofluidic sensors and actuators2011Övrigt (Övrigt vetenskapligt)
    Abstract [en]

    The infiltration of ferrofluids inside microstructured optical fiber Bragg gratings enables photonic devices with spectral behavior that can be stimulated by external magnetic fields.

  • 5. Rugeland, P
    et al.
    Sterner, Carola
    RISE., Swedish ICT, Acreo.
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Monolithic Interferometers Using Gemini Fiber2011Ingår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 23, nr 14, s. 1001-Artikel i tidskrift (Refereegranskat)
  • 6. Rugeland, P
    et al.
    Yu, Z
    RISE., Swedish ICT, Acreo.
    Sterner, Carola
    RISE., Swedish ICT, Acreo.
    Tarasenko, O
    RISE., Swedish ICT, Acreo.
    Tengstrand, G
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Photonic Scanning Receiver Using Electrically Tuned FBG2009Ingår i: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 34, nr 24, s. 3794-96Artikel i tidskrift (Refereegranskat)
  • 7.
    Rugeland, Patrik
    et al.
    RISE., Swedish ICT, Acreo, Fiber Optics.
    Sterner, Carola
    RISE., Swedish ICT, Acreo, Fiber Optics.
    Margulis, Walter
    RISE., Swedish ICT, Acreo, Fiber Optics.
    Visible light guidance in silica capillaries by antiresonant reflection2013Ingår i: Optics Express, E-ISSN 1094-4087, Vol. 21, nr 24, s. 29217-29222Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Hollow silica capillaries are examined as optical waveguides evaluating the antiresonant reflecting optical waveguide (ARROW) effect by sequentially reducing the wall thickness through etching and measuring the optical transmission. It is found that the periodicity of the transmission bands is proportional to the wall thickness and that the propagation loss is of the order of a few dB/m.

  • 8.
    Strömberg, Karl-Otto
    et al.
    Flexprop AB, Sweden.
    Borgenvall, Stefan
    SAAB Aeronautics, Sweden.
    Loukil, Mohamed
    RISE - Research Institutes of Sweden (2017-2019), Material och produktion, SICOMP.
    Noharet, Bertrand
    RISE., Swedish ICT, Acreo.
    Sterner, Carola
    RISE., Swedish ICT, Acreo.
    Lindblom, Magnus
    RISE., Swedish ICT, Acreo.
    Festin, Örjan
    RISE - Research Institutes of Sweden (2017-2019), Material och produktion, IVF.
    Next Generation Manufacturing Fixtures: CFRP Structures Using "in Situ" Health Monitoring2015Ingår i: SAE technical paper series, ISSN 0148-7191, Vol. 2015-September, nr SeptemberArtikel i tidskrift (Refereegranskat)
    Abstract [en]

    Lightweight Production Technology (LWPT) is today a well-established technology in the automotive industry. By introducing light weight fixtures manufactured from Carbon Fiber Reinforced Plastics (CFRP) in aeronautical applications, new challenges as well as possibilities of in-situ health monitoring emerges. The present paper present results from experimental investigations using optical fibers with multiplex Bragg gratings (FBG) as strain gauges in an industrial CFRP fixture. Fixtures were manufactured of laminates made from CFRP. Measurements have been performed on a single CFRP beam with dimensions (8000 × 500 × 500 mm), used as a structural part in a larger assembly (9000 × 4000mm). The optical fibers were placed in between two laminates on two sides of the beam. The measurement data from the FBGs were compared and correlated to the measured displacements of the beam and the applied loads. The results show that for an eight meter long CFRP beam, it is possible to measure and detect displacements of 0.12 mm (load = 36kg), and resolve a displacement of 0.02 mm (Δload = 4.75kg). The experimental results were also compared to FEM calculations on the displacement of the beams when subject to the same load. Here measurements and calculations showed very good agreement. Overall the results imply that FBGs show a high potential as a suitable in-situ health monitoring of lightweight fixtures for the aeronautic industry as well as other applications.

  • 9.
    Yu, Z
    et al.
    RISE., Swedish ICT, Acreo.
    Malmström, M
    Sterner, Carola
    RISE., Swedish ICT, Acreo.
    Tarasenko, O
    RISE., Swedish ICT, Acreo.
    Margulis, W
    RISE., Swedish ICT, Acreo.
    Fonjallaz, P-Y
    Dynamics of long-period gratings tuned with internal fiber electrodes2011Ingår i: Optics Express, E-ISSN 1094-4087, Vol. 36, nr 5Artikel i tidskrift (Refereegranskat)
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