Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Thomas Riesbeck"'
Autor:
Hans-Joachim Eichler, Junfan Chen, Stefan Meister, Shenglei Wang, Xin Wang, Thomas Riesbeck, Hanjo Rhee
Publikováno v:
Optics Communications. 283:570-573
An end pumped Nd:YAP laser at 1341 nm is actively mode locked and passively Q-switched. Pumping was done with a pulsed high power laser diode with maximum power 425 W. V 3+ :YAG with 61% initial transmission served as saturable absorber, and an acous
Publikováno v:
Applied Physics B. 99:127-134
The generation of low divergent (M 2≤1.5) first and third Stokes radiation in a barium nitrate Raman laser with average powers of 11 W and 5 W, respectively, was demonstrated. The quantum conversion efficiency was up to 21%. The possibility of ther
Autor:
Thomas Riesbeck, Oliver Lux
Publikováno v:
Optics Communications. 282:3789-3792
We report on a scheme for efficient acousto-optical Q-switching. A flash lamp pumped Nd:YAG oscillator with an acousto-optic modulator (AOM) fourfold pass configuration is presented. The setup combines two important advantages: enhancement of the dif
Autor:
Jian Chen, Jianhong Ge, Thomas Riesbeck, Sha Wang, Hans Joachim Eichler, Frank Kallmeyer, Xin Wang
Publikováno v:
Applied Physics B. 95:721-730
Diode lasers with peak powers in the kW range and pulse durations of micro- to milli-seconds have been available since several years. Pumping solid state lasers with such sources yield high output pulse energies in spiking or Q-switched operation. Th
Publikováno v:
IEEE Journal of Quantum Electronics. 44:1107-1115
An asymmetrical two-rod Nd:YAG laser system was investigated theoretically and experimentally in a cw-operated TEM00-mode cavity. A revised birefringence compensation condition is presented considering the thickness of the 90 deg polarization rotator
Autor:
Chong Liu, Xin Wang, Zhen Xiang, Thomas Riesbeck, Hans Joachim Eichler, Jianhong Ge, Jun Chen
Publikováno v:
Optics Communications. 281:5222-5228
Spherical aberrations of thermal lens of the active media are severe when the solid state lasers are strongly pumped. The aberrations influence the mode profile, the diffraction loss, the output power and other laser beam properties, especially for a
Autor:
Hans Joachim Eichler, Robert G. Harrison, Maxim S. Kuznetsov, H Park, Jonathan Knight, T Hatae, N G Zakharov, Ondrej Slezak, H. Yoshida, Kouji Nawata, N. Shiba, W.M. He, Alexander Sträßer, Shuangyi Wang, Dianyang Lin, N.E. Kotova, Stefan Meister, Milan Kalal, H.J. Kong, C Lim, Hisanori Fujita, Masahiro Nakatsuka, Jae Sung Shin, Martin Ostermeyer, Jin Woo Yoon, Patrice Mégret, Zhiwei Lu, Takashige Omatsu, Yulei Wang, A Scheikh-Obeid, Thomas Riesbeck, D H Beak, Andrei A. Fotiadi, Seong Ku Lee, Oleg L. Antipov, Valerii I Kovalev
Publikováno v:
Laser and Particle Beams. 26:297-362
An overview on current trends in stimulated Brillouin scattering and optical phase conjugation is given. This report is based on the results of the “Second International Workshop on stimulated Brillouin scattering and phase conjugation” held in P
Autor:
H. J. Eichler, Thomas Riesbeck
Publikováno v:
Optics Communications. 275:429-432
We present a novel coupling scheme of two independent amplified beam lines in a Nd:YAP based master oscillator power amplifier (MOPA) system. Second harmonic generation (SHG) with type II phase matching offers the possibility of coupling two perpendi
Publikováno v:
Laser and Particle Beams. 25:15-21
Stimulated Brillouin scattering (SBS) and the laser-induced damage threshold (LIDT) in different multimode glass fibers with a core diameter of 200 μm are determined. Antireflective coatings for fiber end-faces with high LIDT are developed, which en
Autor:
Klaus Ludewigt, Bernd Schünemann, Ramona Eberhardt, Markus Jung, Andreas Tünnermann, Alexander Graf, Th. Schreiber, Thomas Riesbeck
Publikováno v:
High-Power Lasers 2012: Technology and Systems.
The paper will give an overview over the laser weapon activities at RWM (Rheinmetall Waffe Munition) over the last years. Starting from the actual scenarios for laser weapon applications as: CRAM (Counter Rocket Artillery Mortar), Air Defence and UXO