Bernd Ozygus
Technical University of Berlin
14 Papers
214 Citations
Bernd Ozygus is an academic researcher from Technical University of Berlin. The author has contributed to research in topics: Q-switching & Laser. The author has an hindex of 8, co-authored 14 publications.
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Papers
Modeling of passively Q-switched lasers
TL;DR: In this paper, a group of general Gaussian spatial distribution curves are generated to show the dependence of the pulse characteristics on the pump-to-laser-mode size ratio and the parameters of the gain medium, the saturable absorber, and the resonator.
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Improvement of passive Q-switching performance reached with a new Nd-doped mixed vanadate crystal Nd:Gd0.64Y0.36VO4.
TL;DR: Passive Q-switching performance was found to be greatly improved by use of a new Nd-doped mixed vanadate crystal Nd:Gd0.64Y0.36VO4, and the resulting pulse energy, peak power, and pulse width were 181 microJ, 26 kW, and 6.8 ns, respectively.
116
Pulse energy enhancement in passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals
TL;DR: In this paper, a passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals has been demonstrated, where the pulse energy, peak power, and pulse repetition frequency were obtained.
95
Efficient passive Q-switching operation of a diode-pumped Nd:GdVO 4 laser with a Cr 4+ :YAG saturable absorber
Junhai Liu,Bernd Ozygus,Suhui Yang,Jürgen Erhard,Ute Seelig,Adalbert Ding,Horst Weber,Xianlin Meng,Li Zhu,L. J. Qin,Chenlin Du,Xinguang Xu,Zongshu Shao +12 more
TL;DR: In this article, a diode-pumped highly efficient Cr4+:YAG passively Q-switched Nd:GdVO4 laser formed by a plano-concave resonator has been demonstrated.
82
Modeling of diode-pumped actively Q-switched lasers
TL;DR: In this paper, the intracavity photon density and initial population inversion density in the diode-pumped actively Q-switched laser rate equations are assumed to be Gaussian distributions.
72