Download or read book Development of Thulium Doped Fluoride Fiber Amplifiers written by Marcin Michał Kożak and published by Cuvillier Verlag. This book was released on 2005-12-26 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is related to the spectroscopic and optical properties of doped optical fibers used as a laser amplifier for short laser pulses at high repetition rates emitting around 2 μm. Therefore short pulses created by a laser diode are amplified in thulium-doped optical fibers combining the benefits of a direct electronic control of the laser diodes' parameters and the robust setup of an optical fiber system that can easily be integrated. After the development of a high-current pulse generator especially adapted to the 2 μm laser diodes used, pulses of > 7 ns with peak powers in the Watt range could be generated. Due to the modal behaviour of these laser diodes only 2 mW of peak power could be launched into a single-mode fiber. By comparing different fiber glasses, a heavy metal fluoride glass could be identified as the optimum host for the ions thulium and holmium emitting around 2 μm. Due to the development of a numerical simulation tool based on rate equations and radiation transport equations the fiber parameters such as core diameter, fiber length etc. could be optimized, minimizing the amplified spontaneous emission (ASE) created inside the fiber. Based on this simulation a laser system consisting of cascaded fiber amplifiers could be realized. I emits short laser pulses (20-30 ns) at high repetition rates (up to 125 kHz) and peak powers of up to 5 kW. In contrast to Q-switched lasers the pulse width created is independent of the repetition rate. By using these pulses at 1.87 μm as an optical pump for a Cr2+:ZnSe laser, efficiencies of up to 22% could be reached at an emission wavelength of 2.5 μm.

Download or read book Heats of Formation of Ytterbium and Thulium Trichlorides written by J. M. Stuve and published by . This book was released on 1967 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Capacity and Magnetic Susceptibility of Thulium Ethylsulfate written by Bernard C. Gerstein and published by . This book was released on 1960 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy information data base written by United States. Dept. of Energy. Technical Information Center and published by . This book was released on 1979 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Subject Indexing and Retrieval Thesaurus written by United States. Energy Research and Development Administration and published by . This book was released on 1975 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thesaurus for use by the Energy Research and Development Administration, allowing consistent cataloging and storage of information.

Download or read book Magnetic Properties of Holmium and Thulium written by B. L. Rhodes and published by . This book was released on 1955 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Subject Headings Used in the Catalogs of the United States Atomic Energy Commission written by and published by . This book was released on 1969 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Subject Headings Used in the Catalogs of the United States Atomic Energy Commission written by U.S. Atomic Energy Commission and published by . This book was released on 1966 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Crystal Data Inorganic compounds written by Joseph Désiré Hubert Donnay and published by . This book was released on 1973 with total page 1780 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book H Z written by Friedrich W. Derz and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-05-18 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt: No detailed description available for "H-Z".

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Subject Headings Used by the USAEC Division of Technical Information written by U.S. Atomic Energy Commission and published by . This book was released on 1969 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Crystal Data Inorganic compounds 1967 1969 written by Joseph Désiré Hubert Donnay and published by . This book was released on 1978 with total page 1328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1964 with total page 1528 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Dictionary of Applied Chemistry written by Thomas Edward Thorpe and published by . This book was released on 1927 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt: