Sensing earth's rotation with a helium-neon ring laser operating at 1.15 μm

Autor(en)

K. Ulrich Schreiber, Robert J. Thirkettle, Robert B. Hurst, David Follman, Garrett D. Cole, Markus Aspelmeyer, Jon-Paul R. Wells

Abstrakt

We report on the operation of a 2.56 m2 helium-neon based ring laser interferometer at a wavelength of 1.152276 μm using crystalline coated intracavity supermirrors. This work represents the first implementation of crystalline coatings in an active laser system and expands the core application area of these low-thermal-noise cavity end mirrors to inertial sensing systems. Stable gyroscopic behavior can only be obtained with the addition of helium to the gain medium as this quenches the 1.152502 μm (2s

₄→ 2p

₇ ) transition of the neon doublet which otherwise gives rise to mode competition. For the first time at this wavelength, the ring laser is observed to readily unlock on the bias provided by the earth's rotation alone, yielding a Sagnac frequency of approximately 59 Hz.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Technische Universität München, University of Canterbury, Thorlabs Crystalline Solutions

Journal

Optics Letters

Band

40

Seiten

1705-1708

Anzahl der Seiten

4

ISSN

0146-9592

DOI

https://doi.org/10.1364/OL.40.001705

Publikationsdatum

04-2015

Peer-reviewed

Ja

ÖFOS 2012

103026 Quantenoptik

Schlagwörter

ASJC Scopus Sachgebiete

Atomic and Molecular Physics, and Optics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/b719f79d-38ed-42a4-a72a-d1c97a180e9f