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Open AccessJournal ArticleDOI

Sagnac Effect Compensations and Locked States in a Ring Laser Gyroscope

Woo S. Choi, +5 more
- 01 Feb 2023 - 
- Vol. 23, Iss: 3, pp 1718-1718
TLDR
In this paper , the frequency lock-in phenomenon occurring in the ring laser gyroscopes was successfully investigated by compensating for the Sagnac effect through frequency analysis using a newly defined error function.
Abstract
Frequency lock-in-induced deadband phenomena are major problems of ring laser gyroscopes (RLGs), which deteriorate linear responses to changes in the applied rotation rate. In this work, the frequency lock-in phenomenon occurring in the RLG was successfully investigated by compensating for the Sagnac effect through frequency analysis using a newly defined error function. Integrative and generalized viewpoints from the analyzed results provide new possibilities for relevant performance improvements of optical gyroscopes, as well as a deeper understanding of locked states in principle aspects.

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Citations
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Proceedings ArticleDOI

Dynamical Encircling of a Lock-In Area with a Combination of Fast and Slow Dithering in a Ring Laser Gyroscope

TL;DR: In this paper , a combination of fast and slow dithering in a ring laser gyroscope (RLG) is proposed to improve the performance of the RLG when high static lock-in frequencies are considered.

Dynamical Encircling of a Lock-In Area with a Combination of Fast and Slow Dithering in a Ring Laser Gyroscope

TL;DR: In this article , a combination of fast and slow dithering in a ring laser gyroscope (RLG) was proposed and analyzed through numerical experiments, which can contribute to developing new alternatives for improving RLG performance when high static lock-in frequencies are considered.
References
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Journal ArticleDOI

Real Spectra in Non-Hermitian Hamiltonians Having PT Symmetry

TL;DR: The condition of self-adjointness as discussed by the authors ensures that the eigenvalues of a Hamiltonian are real and bounded below, replacing this condition by the weaker condition of $\mathrm{PT}$ symmetry, one obtains new infinite classes of complex Hamiltonians whose spectra are also real and positive.
Journal ArticleDOI

Making sense of non-Hermitian Hamiltonians

TL;DR: In this article, an alternative formulation of quantum mechanics in which the mathematical axiom of Hermiticity (transpose + complex conjugate) is replaced by the physically transparent condition of space?time reflection ( ) symmetry.
Journal ArticleDOI

Exceptional points in optics and photonics.

TL;DR: The topic of exceptional points in photonics is reviewed and some of the possible exotic behavior that might be expected from engineering such systems are explored, as well as new angle of utilizing gain and loss as new degrees of freedom, in stark contrast with the traditional approach of avoiding these elements.
Journal ArticleDOI

Dynamically encircling an exceptional point for asymmetric mode switching

TL;DR: It is demonstrated that a dynamical encircling of an exceptional point is analogous to the scattering through a two-mode waveguide with suitably designed boundaries and losses, and mode transitions are induced that transform this device into a robust and asymmetric switch between different waveguide modes.
Journal ArticleDOI

The ring laser gyro

TL;DR: A review of active and passive ring laser devices is given in this paper, with special emphasis given to the problems associated with the achievement of greater sensitivity and stability with respect to the ring laser gyroscope.
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