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Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):

F. Bammer:
"Q-switching with photo-elastic modulators";
Vortrag: GCL HPL 2006, Gmunden; 04.09.2006 - 08.09.2006; in: "Proceedings of GCL 06, XVI International Symposium on Gas Flow, Chemical Lasers and High-Power Lasers", D. Schuöcker (Hrg.); SPIE, 6346 (2007), ISSN: 0277-786x; S. 634611-1 - 634611-5.



Kurzfassung deutsch:
Gürteschalten von Lasern mittels photoelastischer Modulatoren

Kurzfassung englisch:
We describe a new method for Q-switching. It uses a polarizer together with a photo-elastic modulator, i.e. a transmissive optical element, which oscillates in a longitudinal eigenmode. This induces due to the photo-elastic effect a modulated artificial birefringence which modulates the polarization of passing light and hence the transmission through the polarizer. With a proper choice of eigenmodes and corresponding phases and amplitudes the times of high transmission are short enough to act as a Q-switch in a laser cavity. The voltage amplitude of the excitation is in the order of 10 V. Hence a simple and robust pulsed laser with constant pulse repetition frequency can be built.

Schlagworte:
Q-switching, photo-elastic modulators


Elektronische Version der Publikation:
http://publik.tuwien.ac.at/files/pub-mb_5209.pdf


Erstellt aus der Publikationsdatenbank der Technischen Universitšt Wien.