Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Richard Wallenstein"'
Autor:
Wataru Kobayashi, Daniel Nürenberg, Richard Wallenstein, Thomas Hamann, Markus Lührmann, Johannes A. L'huillier, Jiaan Zheng, Helmut Zacharias
Publikováno v:
Applied Physics B. 116:549-560
We present a visually intuitive method for higher-order dispersion compensation based on multi-photon interpulse interference pulse scans. The dispersion values obtained from these scans are fed back as a correction to an acousto-optical programmable
Publikováno v:
Applied Physics B. 102:523-528
We report on an experimental study of 888 nm pumped, passively mode-locked, high-power Nd:YVO4 lasers with an enhanced cavity design, involving spatial hole burning (SHB) in the active medium. We observed a significant pulse shortening due to the con
Publikováno v:
Applied Physics B. 92:481-485
This paper reports the generation of fs light pulses by a passively mode-locked InGaAs master oscillator power amplifier (MOPA) system. The laser system generates chirped pulses with 6.2 ps duration, a center wavelength of 922 nm and 4 GHz repetition
Publikováno v:
Applied Physics B. 92:165-174
This paper reports on efficient generation of cw laser radiation at 0.9 and 1.3 μm in different neodymium doped laser hosts. The thermal, mechanical and optical properties as well as the laser performance of Nd:YAG, Nd:YAlO3, Nd:YVO4 and Nd:GdVO4 ar
Publikováno v:
Applied Physics B. 92:175-183
This paper reports on the generation of picosecond (ps) laser pulses by self-phase-adjusting additive-pulse-mode-locking (PSA) at wavelengths of 0.9 and 1.3 μm. The main objective of this work was to investigate and compare the characteristic optica
Publikováno v:
Applied Physics B. 89:377-383
We present an improved Schlieren method to measure the optical quality of crystals, defined by it’s optical homogeneity and the surface roughness of it’s facets. The method is based on a combination of Schlieren, interferometric and tilting angle
Autor:
Thorsten Ulm, O. Casel, Johannes A. L'huillier, D. Woll, Harry Fuchs, M.A. Tremont, Richard Wallenstein
Publikováno v:
Applied Physics B. 87:425-430
This paper reports on a mode-locked InGaAs master oscillator power amplifier (MOPA) system that generates at 920 nm 14-ps-long pulses with a repetition rate of 4.3 GHz and an average power of 2.7 W. Single-pass frequency doubling in a periodically po
Autor:
Richard Wallenstein
Publikováno v:
Laser Technik Journal. 2:72-75
Im Jahre 1962 emittierte der erste Halbleiterlaser auf der Basis eines Gallium-Arsenid-Kristalls koharentes Licht. Seit dieser Zeit haben Generationen von Halbleiterlasern mit immer komplexeren Strukturen und verbesserten Eigenschaften einander abgel
Autor:
Richard Wallenstein, P. Unger, Markus Weyers, D. Woll, Harry Fuchs, Martin Zorn, E. Gerster, O. Casel, M.A. Tremont
Publikováno v:
Applied Physics B. 81:443-446
We report the generation of blue 489-nm picosecond laser pulses by intracavity second-harmonic generation in a mode-locked optically pumped InGaAs vertical-external-cavity surface-emitting laser. Mode locking achieved by a semiconductor saturable abs
Publikováno v:
Applied Physics B. 81:163-166
We report a diode-pumped picosecond Nd:GdVO4 regenerative amplifier system designed for micro-machining applications. Nd:GdVO4 was chosen as gain material because it offers – in comparison to the commonly used Nd:YVO4 – improved thermal propertie