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A New Generation of Ultrafast Oscillators for Mid-Infrared Applications
Nathalie Nagl
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Springer International Publishing 
Naturwissenschaften, Medizin, Informatik, Technik / Elektrizität, Magnetismus, Optik
Beschreibung
This thesis presents the first successful realization of a compact, low-noise, and few-cycle light source in the mid-infrared wavelength region. By developing the technology of pumping femtosecond chromium-doped II-VI laser oscillators directly with the emission of broad-stripe single-emitter laser diodes, coherent light was generated with exceptionally low amplitude noise — crucial for numerous applications including spectroscopy at high sensitivities. Other key parameters of the oscillator's output, such as pulse duration and output power, matched and even surpassed previous state-of-the-art systems. As a demonstration of its unique capabilities, the oscillator's powerful output was used to drive — without further amplification — the nonlinear generation of coherent mid-infrared light spanning multiple octaves. The resulting table-top system uniquely combines high brilliance and ultrabroad spectral bandwidth in the important mid-infrared spectral range.
The rapid development of this technology is comprehensively and lucidly documented in this PhD thesis. Together with a thorough review of literature and applications, and an extensive analysis of the theoretical foundations behind ultrafast laser oscillators, the thesis will serve as a valuable reference for the construction of a new generation of mid-infrared light sources.
Kundenbewertungen
Ultrafast Laser Oscillators, Ultrashort Pulse Generation, Single-Emitter Laser Diodes, Diode-Pumping, Coherent Mid-Infrared Sources, Intra-Pulse Difference Frequency Generation, Soliton Mode-Locking, Chromium-Doped II-VI Lasers, Few-Cycle Pulses, Femtosecond Lasers, Broadband Light Sources, Kerr-Lens Mode-Locking, Dispersion Management