Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 45 for “"High Repetition Rate"”.
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High repetition rate fiber lasers
This thesis reports work in high repetition rate femtosecond fiber lasers. Driven by the applications including optical arbitrary waveform generation, high speed optical sampling, frequency metrology, and timing and frequency distribution via fiber links, low noise fiber laser sources operating at …
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Analysis of high repetition rate thyratrons
Not available
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High repetition rate Ti:Sapphire modelocked laser
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
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High repetition rate fiber and integrated waveguide femtosecond lasers
… of astronomical spectrographs, multi-GHz repetition rate femtosecond lasers with robust performance metrics, low cost, and a compact footprint are highly desirable. In this thesis, different approaches to develop GHz mode-locked laser systems at telecommunication wavelengths are discussed …
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Integrated high-repetition-rate femtosecond lasers at 1.55 [mu]m
… and require precisely adjustable mounts and high-quality optical components. To realize the possibility of femtosecond lasers replacing current electronics for unprecedented performance in the future, these lasers must be as compact, robust, and affordable as electronic circuits. A …
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Applications and noise properties of high repetition rate : TiSapphire frequency combs
… both the broadest optical spectrum and highest fundamental pulse repetition rates directly from the laser cavity. Recent advances in laser diode technology have reduced the cost of pump lasers for Ti:Sapphire based frequency combs considerably, and the recent demonstration of direct …
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Development of a High Repetition Rate, Electro-optically Q-switched Ho:YAG Laser
… the aim of this research was to develop a high repetition rate, electro-optically Q-switched Ho:YAG laser capable of meeting the requirements for these applications, and as a result, investigate if it is theoretically capable of pumping an optical parametric oscillator. The basis of the …
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Laser Diagnostic Techniques with Ultra-High Repetition Rate for Studies in Combustion Environments
… an engine cycle. A multi-YAG laser cluster and a high-speed framing camera capable of recording sequences of up to eight image frames, and having a framing rate up to the megahertz range were originally set up for these types of studies. Within the framework of this thesis, further developments of …
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Stabilization techniques and silicon-germanium saturable absorbers for high repetition rate mode-locked lasers
… of passively mode-locked solid-state lasers at highest repetition rates has been prevented by Q-switching instabilities and the lack of integrable saturable absorbers to date. In this thesis we demonstrate in theory and experiment that active feedback electronics controlling the intracavity loss …
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High repetition rate mode-locked erbium-doped fiber lasers with complete electric field control
… this thesis work, we describe the development of high repetition-rate fiber laser-based systems for the realization of these applications at 1550 nm wavelengths. To realize these systems, frequency comb sources are needed that are compatible with electric field stabilization techniques, are …
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Novel broadband light sources and pulse generation techniques at 1.5 [mu]m
… mirrors - one device was developed for low-repetition-rate sub-100-fs ultrafast lasers and the other for high-repetition- rate femtosecond lasers. The third device bypasses generating broadband light directly from a laser altogether through the use of extra-cavity spectral broadening in a …
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Attosecond timing jitter modelocked lasers and ultralow phase noise photonic microwave oscillators
… represents the state-of-the-art solution to generate X-band microwaves of ultralow phase noise. Such high-quality microwave source enables a range of applications in which frequency stability and timing accuracy are essential to performance. Wide use of this technology, however, requires compact …
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Weak Shock Waves on a Chip: Generation and Applications
… of the experiment. Motivated by the need to generate large-amplitude transient strain waves at a high repetition rate, this thesis introduces a novel platform for the non-destructive generation and amplification of acoustic waves with associated strain levels in the percent range — up to the …
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EMP mitigation and novel detection strategies for laser-plasma experiments
… Many laser-driven sources have been demonstrated, including x-rays, protons, electrons and positrons. The laser driven production of exotic particles such as muons has been theorised. Proposed applications for some of these novel particle and photon sources include a compact source of ions …
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Point-Spread Function Assessment of SG-DBR Based Swept Source for OCT Imaging
… is a medical imaging technique that requires high repetition rate, widely-tunable coherent laser sources. Sampled grating distributed Bragg reflector (SG-DBR) lasers are proven in telecom applications and are expected to fulfill the requirements for SS-OCT at a significantly lower cost than …
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Development of high-speed laser diagnostics for the study of advanced propulsion systems
Combustion in next-generation high-speed propulsion systems involves highly turbulent reactive flow conditions, often beyond the limits of our physicochemical understanding. It is a challenge to produce reliable combustion as localized extinction and instabilities are highly transient in nature. It …
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Volumetric creation of ultra-high-energy-density plasma by irradiation of ordered nanowire arrays
Creating appreciable volumes of Ultra-High-Energy Density (UHED) matter in the laboratory is a challenge. Recent developments in the fabrication of vertically aligned nanowire array targets, in coordination with ultra-high-contrast femtosecond laser pulses focused to relativistic intensity, have …
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Swept-Frequency Sampled Grating Distributed Bragg Reflector Lasers Optimized for Optical Coherence Tomography Applications
… Optical Coherence Tomography (OCT) requires high repetition rate and wide spectral width wavelength tunable sources at a low cost. The sampled grating distributed Bragg reflector (SG-DBR) laser provides wide wavelength tuning range while exhibiting a wavelength switching speed that is among …
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Fundamental aspects of imaging matrix assisted laser desorption ionisation mass spectrometry.
… in this thesis was to assess the use of a high repetition rate laser for MALDI-MS image analysis by developing methodologies for the detection of a number of different compounds from a variety of biological tissues. Additional investigations include and examination of strategies for …
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