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 40 for “"fiber lasers"”.
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High repetition rate fiber lasers
… 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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High-Energy YB-Doped Femtosecond Fiber Lasers
… bandwidth of the mode-locked femtosecond fiber lasers. I have focused on studying the impact of the parameters of the saturable absorber and the bandwidth of the lumped spectral filter on the temporal and spectral profiles of the pulse. Therefore, I developed two models that can help us to …
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Timing jitter studies in modelocked fiber lasers
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
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Additive pulse mode-locked erbium-doped fiber lasers
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Noise and stability of actively modelocked fiber lasers
… and stability in actively modelocked soliton fiber lasers. The main achievements reported here are: the development of a theory for quantum-limited timing jitter for the cases of amplitude and phase modulation (AM and PM, respectively); identification of a set of characteristic coefficients …
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Thermal management of ytterbium-doped high-power fiber lasers
This Thesis was approved for publication on 2019-12-05 at 12:54.
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Mode-locking of thulium-doped and Erbium-doped fiber lasers
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Development of ultrashort pulse fiber lasers for optical communication utilizing semiconductor devices
… repetition rate active harmonically mode-locked fiber laser, improving supermode suppression by eliminating pulse dropouts.
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Femtosecond fiber lasers at 1550 nm for high repetition rates and low timing jitter
Femtosecond fiber lasers have become an important enabling technology for advances in many areas including: frequency combs, precise timing distribution, optical arbitrary waveform generation, and high bit rate sampling for analog to digital conversion. Experiments and applications like these put …
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High repetition rate mode-locked erbium-doped fiber lasers with complete electric field control
… 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 compatible with integrated …
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BEAM COMBINING OF FIBER LASERS AND VERTICAL EXTERNAL CAVITY SURFACE EMITTING LASERS USING VOLUME BRAGG GRATINGS
… gratings, for combining the high brightness lasers sources. First, we theoretically study the performance of the beam combiners using the coupled wave equations. Then we conduct beam combining experimental demonstrations of high brightness fiber lasers in both active and passive coherent beam …
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Photosensitivity and Photodarkening of UV-induced Phosphate Glass Fiber Bragg Gratings and Application in Short Fiber Lasers
Phosphate glass fiber is an ideal choice for building compact high gain fiber lasers, as the fiber can host high concentrations of rare earth ions. However, the low photosensitivity of phosphate glass fibers prevents the integration of UV-written intra-core fiber Bragg gratings (FBGs) into the …
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Optical Processes and Laser Dynamics in Holmium and Neodymium Upconversion -Pumped Visible and Ultraviolet Fluorozirconate Fiber Lasers
Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
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Optical Processes and Laser Dynamics in Holmium and Neodymium Upconverstion-Pumped Visible and Ultraviolet Fluorozirconate Fiber Lasers
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2012-01-11T17:47:04Z No. of bitstreams: 1 1999_funk.pdf: 6183075 bytes, checksum: 37613374894e707519eef36ff6c08896 (MD5)
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Stable multiwavelength erbium-doped random fiber laser
Multiwavelength fiber lasers which consist of equally-spaced frequency components have found many applications and that includes as light sources for optical communication systems. One of the techniques available to generate such multiple wavelengths is random fiber lasers. Despite simplicity in …
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Generation of pulsed dual wavelength erbium doped fiber laser
Single and dual wavelength fiber lasers and pulsed fiber lasers are well-known to be used for various applications. In the generation of dual wavelength fiber lasers and pulsed fiber lasers, the researchers found the mode competition among the dual wavelength is caused by the cross-gain saturation …
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Generation and storage of ultrashort pulses using optical fiber devices
Three different types of optical fiber devices were investigated for this thesis: actively modelocked fiber lasers, optical fiber ring buffers, and passively mode-locked fiber lasers. Intra-cavity soliton compression was employed in an actively mode-locked fiber laser to reduce the pulse width by a …
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HIGH POWER PULSED FIBER LASER SOURCES AND THEIR USE IN TERAHERTZ GENERATION
… I report the development of high power pulsed fiber laser systems. These systems utilize phosphate glass fiber for active elements, instead of the industry-standard silica fiber. Because the phosphate glass allows for much higher doping of rare-earth ions than silica fibers, much shorter …
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Bidirectional mode-locked fiber ring laser
… At this new scientific frontier, mode-locked lasers, with ultra sensitive phase measurement capabilities, have been playing an increasingly significant role. Among these highly sophisticated systems, mode-locked fiber lasers have been extensively explored in an unidirectional mode, while …
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A Narrow-Linewidth Laser at 1550 nm Using the Pound-Drever-Hall Stabilization Technique
… and it is a defining characteristic of coherent lasers. Narrow linewidth laser technology, particularly in the field of fiber-based infrared lasers, has progressed to the point where highly stable sources are commercially available with linewidths on the order of 1-100 kHz. In order to achieve a …
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