Search for dissertations about: "mid-IR lasers"
Showing result 1 - 5 of 6 swedish dissertations containing the words mid-IR lasers.
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1. Highly efficient optical parametric oscillators in the mid-IR
Abstract : This thesis shows how sources of coherent radiation in the mid-infrared (mid-IR) region can be enhanced. To achieve this, optical parametric oscillators (OPOs) employing improved novel materials, new optical elements, and novel cavity designs have been implemented. READ MORE
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2. Novel materials for Yb and Er-Yb doped microchip lasers
Abstract : The objective of this thesis has been to investigate novel host material configurations for high-power end-pumped Er-Yb co-doped, or Yb doped microchip lasers and try to increase their performance. In Er-Yb co-doped systems, the main limitation is the thermal shortcomings of the phosphate glass host material. READ MORE
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3. Quantitative Modeling of Gain in Quantum Cascade Lasers under Operational Intensities
Abstract : This thesis adresses modeling of quantum cascade lasers using non-equilibrium Green’s functions. Focus lies on the quantitative modeling of the gain when the systems are exposed to strong laser fields, as under realistic opertional conditions. READ MORE
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4. Novel on-line mid infrared detection strategies in capillary electrophoretic systems
Abstract : Infrared absorption spectra can provide analytically useful information on a large variety of compounds, ranging from small ions to large biological molecules. In fact, all analytes that possess a dipole moment that changes during vibration are infrared-active. The infrared (IR) spectrum can be subdivided into far-, mid- and near- regions. READ MORE
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5. High-speed optical modulators based on intersubband transitions
Abstract : Optical modulators are essential components in high speedoptical communication. They are employed to circumvent theinherent speed limitations of direct modulated semiconductorlasers, and may also extend the transmission distance onoptical fibers by providing optical pulses with lowerchirp. READ MORE