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K: Fachverband Kurzzeit- und angewandte Laserphysik

K 6: Poster

K 6.4: Poster

Dienstag, 11. März 2025, 14:00–16:00, Tent

A passive laser gyroscope for Earth rotation monitoring — •Tessa Koch, Jannik Zenner, and Simon Stellmer — Physikalisches Institut, Rheinische Friedrich-Wilhelms-Universität, Bonn, Germany

Active ring lasers have been the leading variant in detecting subtle earth rotation variations influenced by diverse geophysical processes across a wide spectrum of frequencies. On the other hand, passive laser gyroscopes are still a far less advanced concept. By placing the gain medium outside of the optical resonator, the passive variant removes many of the systematic limitations of active gyroscopes, and holds the potential to increase sensitivity. We will report on the current status of a unique setup that can be operated both actively and passively, with the goal of characterizing both operation concepts.

Keywords: laser gyroscope; ring laser; geodesy; seismology