Search for dissertations about: "mode-locked laser"

Showing result 1 - 5 of 9 swedish dissertations containing the words mode-locked laser.

  1. 1. Novel Technologies for Mode-Locking of Solid-State Lasers

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Niels Meiser; KTH.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; laser; mode-locked laser; pulsed laser; quantum dot; carbon nanotube; nonlinear optics; saturable absorber; Kerr-lens mode-locking; ultra-fast laser; picosecond laser; pulsed laser; semiconductor saturable absorber;

    Abstract : The subject of this thesis is the investigation of novel technologies for mode-locking of diode-pumped, solid-state lasers. Novel saturable absorbers are used: quantum dots (QDs) and carbon nanotubes (CNTs), which both are low-dimensional nano-formations. In addition, mode-locking by cascaded nonlinearities is explored. READ MORE

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

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Hans Lindberg; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; mode-locking; thermal management; spectral properties; optically pumped; single frequency; beam quality; vertical-external-cavity surface-emitting laser; disk laser; Semiconductor laser;

    Abstract : The semiconductor disk laser has recentlyemerged 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. READ MORE

  3. 3. Short Pulses in Engineered Nonlinear Media

    University dissertation from Stockholm : KTH

    Author : Stefan Holmgren; KTH.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nonlinear optics; KTiOPO4; frequency conversion; mode-locked lasers; ultra-fast lasers; visible lasers; short pulses; ultrafast nonlinear optics; diagnostic applications of nonlinear optics; nonlinear optical materials; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Abstract : Short optical pulses and engineered nonlinear media is a powerful combination. Mode locked pulses exhibit high peak powers and short pulse duration and the engineered ferro-electric KTiOPO4 facilitates several different nonlinear processes. READ MORE

  4. 4. All-fiber modulators for laser applications

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Mikael Malmström; KTH.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; All-fiber; fiber optics; modulation; q-switching; mode-locking;

    Abstract : 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. READ MORE

  5. 5. Laser-Based Cancer Diagnostics and Therapy - Tissue Optics considerations

    University dissertation from Division of Atomic Physics, Department of Physics, Faculty of Engineering, LTH, Lund University

    Author : Roger Berg; [1995]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:1995:Berg;

    Abstract : Near-IR light penetrates deeply into tissue, but as the scattering coefficient is much larger than the absorption coefficient in this wavelength region, direct viewing through tissue is very difficult. In order to detect and locate inhomogeneities located inside tissue a time-resolved technique was developed, based on gated viewing, i.e. READ MORE