Sökning: "Fiber Laser"

Visar resultat 1 - 5 av 130 avhandlingar innehållade orden Fiber Laser.

  1. 1. Hybrid fiber preform fabrication using CO laser heating

    Författare :Taras Oriekhov; Michael Fokine; Cruz José; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Preform; CO laser; silicon-core fiber; semiconductor-core fiber; specialty fiber; optical fiber.; Optik och fotonik; Optics and Photonics;

    Sammanfattning : This thesis describes the development of a new prototyping technique for specialty optical fibers and covers all the fabrication steps from preform to fiber. The technique allows to produce fibers of a custom core structure and material composition, mainly focusing on semiconductor core fibers. LÄS MER

  3. 2. Erbium fiber ring lasers and their applications in ultrahigh speed fiber-optic transmission

    Författare :Bamdad Bakhshi; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; installed optical fiber; solition interaction; optical pulse chirp; fiber; polarization mode dispersion; dual-drive modulator; dispersion- management; optical solition transmission; polarization-maintaining; field transmission experiment; active mode-locking; high speed fiber-optic communication; erbium fiber laser; multiwavelength optical source; nonlinear optics;

    Sammanfattning : .... LÄS MER

  4. 3. Applications of monolithic fiber interferometers and actively controlled fibers

    Författare :Patrik Rugeland; Fredrik Laurell; Walter Margulis; Miguel Andrés; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fiber; fiber Bragg grating; micro-structured fiber; add drop multiplexer; fiber interferometer; microwave photonics; temperature sensor;

    Sammanfattning : The objective of this thesis was to develop applications of monolithic fiber devices and actively controlled fibers. A special twin-core fiber known as a ‘Gemini’ fiber was used to construct equal arm-length fiber interferometers, impervious to temperature and mechanical perturbations. LÄS MER

  5. 4. All-fiber modulators for laser applications

    Författare :Mikael Malmström; Fredrik Laurell; Simon Fleming; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; All-fiber; fiber optics; modulation; q-switching; mode-locking;

    Sammanfattning : The objective of this thesis was to explore the usefulness of all-fiber modulators for laser applications. The modulators were all based on refractive index change achieved in the core of the studied fiber- components, exploiting either the elasto-optic effect or the electro-optic effect. LÄS MER

  7. 5. Laser-based absorption spectrometry : development of NICE-OHMS towards ultra-sensitive trace species detection

    Författare :Florian Schmidt; Ove Axner; Livio Gianfrani; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; absorption spectrometry; trace species detection; fiber laser; modulation; cavity-enhanced spectroscopy; optical saturation; laser frequency stabilization; free-spectral-range; Physics; Fysik;

    Sammanfattning : Laser-based absorption spectroscopy (AS) is a powerful technique for qualitative and quantitative studies of atoms and molecules. An important field of use of AS is the detection of species in trace concentrations, which has applications not only in physics and chemistry but also in biology and medicine, encompassing environmental monitoring, regulation of industrial processes and breath analysis. LÄS MER