Regensburg 2013 – wissenschaftliches Programm

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MI: Fachverband Mikrosonden

MI 9: Poster: Microanalysis and Microscopy

MI 9.2: Poster

Mittwoch, 13. März 2013, 15:00–17:00, Poster B2

Ring Laser Gyroscope with Varying Arm Lengths — •Kathrin Schaller and Lothar Kador — University of Bayreuth, Institute of Physics and Bayreuther Institut für Makromolekülforschung (BIMF), Bayreuth, Germany

Variations of the lock-in threshold of a ring laser gyroscope upon slight changes of its arm lengths have been investigated. The setup features a HeNe discharge tube and a rectangular ring cavity encompassing about 0.2 square-meters and is built on a precision rotating stage. Two of the cavity mirrors are mounted on piezo translators, so that their positions can be changed in the range of a few micrometers with or without varying the total cavity length. The influence of variations of the arm lengths on the lock-in threshold was studied in the regime of single-mode and dual-mode operation of the laser and for different rotation rates.