Sökning: "disk laser"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden disk laser.

  1. 1. High Power, Long Wavelength Semiconductor Disk Lasers for Continuous and Mode-Locked Operation

    Detta är en avhandling från Chalmers University of Technology

    Författare :Hans Lindberg; Chalmers tekniska högskola.; Chalmers University of Technology.; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fotonik; Photonics; Optisk fysik; Optical physics; Semiconductor laser; disk laser; vertical-external-cavity surface-emitting laser; single frequency; beam quality; spectral properties; optically pumped; thermal management; mode-locking;

    Sammanfattning : The semiconductor disk laser has recently emerged as an attractive alternative to bulky and power consuming gas and solid state lasers. It offers compact, powerful and efficient devices with W level output power and beam properties earlier not achieved with semiconductor lasers. LÄS MER

  2. 2. Optically pumped semiconductor disk lasers for high-power wide wavelength tuning

    Detta är en avhandling från Chalmers University of Technology

    Författare :Carl Borgentun; Chalmers tekniska högskola.; Chalmers University of Technology.; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optik; Optics; Fotonik; Photonics; Semiconductor laser; optically pumped semiconductor disk laser; vertical-external-cavity surface-emitting laser; design; high power; wavelength tuning; beam characterization; gain measurements;

    Sammanfattning : In this work I present and verify a strategy that makes it possible to change the wavelength, or color, of an external cavity semiconductor laser over a very large range. This is achieved by a careful design and thorough optimization of the active component — the gain element of the laser. LÄS MER

  3. 3. Design and Performance of Optically Pumped Semiconductor Disk Lasers with Wide Tuning Ranges

    Detta är en avhandling från Chalmers University of Technology

    Författare :Carl Borgentun; Chalmers tekniska högskola.; Chalmers University of Technology.; [2010]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fotonik; Photonics; Semiconductor laser; optically pumped semiconductor disk laser; vertical-external-cavity surface-emitting laser; design; high power; tuning range; beam characterization;

    Sammanfattning : In this work I present a strategy for providing the possibility to select the wavelength, or color, of a semiconductor laser over a very large range, by cleverly designing the vital part of the laser: the gain element of a so called optically pumped semiconductor disk laser. Optically pumped semiconductor disk lasers (OP-SDLs) are a relatively new class of lasers showing great promise for future applications. LÄS MER

  4. 4. High speed imaging analysis of laser welding

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Ingemar Eriksson; Luleå tekniska universitet.; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science - Other processing assembly; Laser welding; Teknisk materialvetenskap - Övrig bearbetning sammanfogning; Manufacturing Systems Engineering; Produktionsutveckling;

    Sammanfattning : Laser welding is often considered a new and exotic manufacturing method even though it has been used in industrial applications for nearly fifty years. In the early years only a few special applications justified the high investment cost involved, but as the price of the laser sources has reduced, industrial interest in laser welding has increased. LÄS MER

  5. 5. Compact solid-state lasers in the near-infrard and visible spectral range

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Kai Seger; KTH.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; volume Bragg gratings; single-longitudinal-mode laser; laser tuning; Q-switching; mode-locking; carbon nanotubes; semiconductor lasers; neodymium; ytterbium; nonlinear optics; KTP;

    Sammanfattning : The subject of this thesis is the exploration of new concepts for compact solid-state lasers in the visible and near-infrared spectral range using new components such as volume Bragg gratings for wavelength stabilisation and wavelength tuning. Also single-walled carbon nanotubes for mode-locking and Q-switching of lasers have been studied. LÄS MER