Search for dissertations about: "fiber laser"

Showing result 21 - 25 of 130 swedish dissertations containing the words fiber laser.

  2. 21. Laser doppler tissue flowmetry : fiberoptic methods in microvascular research

    Author : Göran Salerud; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : Laser Doppler flowmetry (LDF) constitutes a method for measuring the flux of blood cells in the microcirculatory bed. Photons are scattered in the moving blood cells, where they undergo a frequency shift according to the Doppler principle. READ MORE

  4. 22. Quantitative Laser Doppler Flowmetry

    Author : Ingemar Fredriksson; Tomas Strömberg; Marcus Larsson; Weindelt Stenbergen; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Medical engineering; Medicinsk teknik;

    Abstract : Laser Doppler flowmetry (LDF) is virtually the only non-invasive technique, except for other laser speckle based techniques, that enables estimation of the microcirculatory blood flow. The technique was introduced into the field of biomedical engineering in the 1970s, and a rapid evolvement followed during the 1980s with fiber based systems and improved signal analysis. READ MORE

  5. 23. Generation of optical pulses from Erbium-doped fiber ring lasers and their applications in soliton transmission and all-optical sampling

    Author : Jie Li; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dispersion-management; pulse generation; temporal resolution; super-mode noise; parametric amplification; timing jitter; mode-locking; fiber ring laser; eye-diagram; soliton robustness; polarization-mode dispersion; all-optical sampling; highly nonlinear fiber;

    Abstract : .... READ MORE

  6. 24. Optical fiber scattering and biological electromagnetic effects

    Author : Sheila Galt; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; diatom motility; ornithine decarboxylase ODC ; magnetic fields; transmembrane channels; stimulated Raman scattering SRS ; cyclotrone resonance; chromosome aberrations; Optical fibres; diffusive light scattering; laser safety;

    Abstract : .... READ MORE

  7. 25. High Speed Vertical Cavity Surface Emitting Lasers for Short Reach Communication

    Author : Petter Westbergh; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high speed modulation; GaAs; Semiconductor laser; InGaAs; vertical cavity surface emitting laser VCSEL ; laser dynamics; fabrication;

    Abstract : The vertical cavity surface emitting laser (VCSEL) is a low cost light source with attractive performance characteristics such as low power consumption, high speed capabilities at low currents, and a circular output beam. These features have made the VCSEL an established component in digital communication networks, particularly in short reach optical data transmission applications where links consisting of GaAs-based 850nm VCSELs and multimode fiber have become the standard solution. READ MORE