Multifrequency laser gyro and its operation regimes

doi:10.23919/ICINS.2017.7995664

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Multifrequency laser gyro and its operation regimes

Proceedings Article•DOI•

Multifrequency laser gyro and its operation regimes

Yu. Yu. Broslavets¹, A.A. Fomichev¹, D.M. Ambartsumyan¹, E.A. Polukeev¹•Institutions (1)

Moscow Institute of Physics and Technology¹

01 May 2017-pp 1-3

TL;DR: In this paper, a model of the bi-directional generation dynamics in a gyroscope in the mode-locked for multifrequency generation in a laser was developed, where the loss modulation phase and depth influence on the value of the stable mode synchronization area.

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Abstract: In this article the study of the multifrequency generation regime in a laser gyroscope was undertaken. The study is performed on a laser gyroscope with a broadband solid-state wide-range active medium YAG:Cr4+ and a gyroscope on a semiconductor optical amplifier and with a fiber-optic cavity. Mode-locking was used in order to improve stability and reduce noise. Using Lamb theory-based equations, a mathematical model of the bi-directional generation dynamics in a gyroscope in the mode-locked for multifrequency generation in a laser was developed. The loss modulation phase and depth influence on the value of the stable mode synchronization area, as well as the generation parameters ensuring the registration of the angular quantities with maximum accuracy are defined.

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Journal Article•DOI•

Bidirectional Kerr-lens mode-locked femtosecond ring laser

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Matthew J. Bohn¹, Jean-Claude Diels¹•Institutions (1)

University of New Mexico¹

15 Aug 1997-Optics Communications

TL;DR: In this article, the first bidirectional operation of a Kerr-lens mode-locked femtosecond Ti:sapphire laser was reported, where a simple ABCD matrix method correctly predicts the locations of the apertures to achieve the positive feedback required for continous wave mode-locking and the negative feedback for continuous wave operation.

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33 citations

"Multifrequency laser gyro and its o..." refers background in this paper

...It is also shown that mode synchronization significantly reduces frequency locking and the influence of counterpropagating waves coupling through scattering [5, 6, 15]....
[...]
...A consistent active medium generation line broadening, leading to a counterpropagating waves competition, is the main problem of the solid-state gyros, which can be overcome [5-8] by using the features of the active centers in the matrix of the active medium [9], operation in mode synchronization and other methods....
[...]

Journal Article•DOI•

Ring gas lasers with magneto-optical control for laser gyroscopy (invited paper)

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V V Azarova, Yu D Golyaev, Valentin G Dmitriev

28 Feb 2000-Quantum Electronics

TL;DR: In this article, the main physical principles of the operation of ring gas laser in the laser-gyroscope regime are examined, and the influence of non-reciprocal effects on the operational parameters of the ring gas lasers and the methods of controlling, with the aid of the non-receptive magneto-optical Zeeman effect, the parameters of these lasers used in gyroscopes are discussed.

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Abstract: The main physical principles of the operation of ring gas lasers in the laser-gyroscope regime are examined. The influence of nonreciprocal effects on the operational parameters of ring gas lasers and the methods of controlling, with the aid of the nonreciprocal magneto-optical Zeeman effect, the parameters of these lasers used in gyroscopes are discussed.

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24 citations

"Multifrequency laser gyro and its o..." refers background in this paper

...The main operation regime of most laser gyroscopes is dual-frequency [1, 2]....
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...In addition, to compare the two-frequency regime with Zeeman dither [2] this four-frequency regime gyroscope provides high accuracy due to simultaneous work on orthogonal circular polarizations, such work makes it possible to subtract the error caused by the influence of external magnetic fields and to approach accuracy to the quantum limit [3]....
[...]
...Resistance to shock and insensitivity to large acceleration requirements for fast maneuvering objects led to four-frequency laser gyroscopes [2, 3], they are sometimes called multifrequency....
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Journal Article•DOI•

Solid-state ring laser gyro behaving like its helium-neon counterpart at low rotation rates

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Sylvain Schwartz¹, François Gutty², G. Feugnet¹, Éric Loil², Jean-Paul Pocholle¹ - Show less +1 more•Institutions (2)

École Polytechnique¹, Thales Group²

15 Dec 2009-Optics Letters

TL;DR: It is shown that the level of angular random-walk noise in the presence of mechanical dithering depends only on the quality of the cavity mirrors, as is the case with typical helium-neon ring laser gyros.

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Abstract: Nonlinear couplings induced by crystal diffusion and spatial inhomogeneities of the gain have been suppressed over a broad range of angular velocities in a solid-state ring laser gyro by vibrating the gain crystal at 168 kHz and 0.4 microm along the laser cavity axis. This device behaves in the same way as a typical helium-neon ring laser gyro, with a zone of frequency lock-in (or dead band) resulting from the backscattering of light on the cavity mirrors. Furthermore, it is shown that the level of angular random-walk noise in the presence of mechanical dithering depends only on the quality of the cavity mirrors, as is the case with typical helium-neon ring laser gyros.

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19 citations

"Multifrequency laser gyro and its o..." refers background in this paper

...A consistent active medium generation line broadening, leading to a counterpropagating waves competition, is the main problem of the solid-state gyros, which can be overcome [5-8] by using the features of the active centers in the matrix of the active medium [9], operation in mode synchronization and other methods....
[...]

Proceedings Article•DOI•

The solid-state ring laser gyro: current and future trends

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Sylvain Schwartz, T. Lauprêtre¹, F. Goldfarb¹, Fabien Bretenaker¹, Rupamanjari Ghosh², Iacopo Carusotto, G. Feugnet, François Gutty, J.-P. Pocholle - Show less +5 more•Institutions (2)

Centre national de la recherche scientifique¹, Jawaharlal Nehru University²

06 Mar 2013-Proceedings of SPIE

TL;DR: In this paper, the authors report progress towards a high performance solid-state ring laser gyro using a diode-pumped Nd-YAG crystal as the gain medium.

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Abstract: We report our progress towards a high performance solid-state ring laser gyro using a diode-pumped Nd-YAG crystal as the gain medium. We then discuss the possibility of including in this device a highly dispersive medium, which could serve for testing the recent proposal by Shariar and coworkers of a fast-light ring laser gyro. This discussion is supported in particular by the recent results obtained at Laboratoire Aime Cotton with electromagnetically induced transparency in metastable helium

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9 citations

Journal Article•DOI•

Width of the Spectral Lines of an N-Mode System Which Has an Equidistant Spectrum of Natural Frequencies and Operates in a Self-Synchronous Mode

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A. N. Malakhov, A. A. Mal'tsev

01 Aug 1973-Radiophysics and Quantum Electronics

8 citations

"Multifrequency laser gyro and its o..." refers background in this paper

...The studies revealed that using mode synchronization significantly suppresses technical and fundamental noise suppression [4, 15], that allows to improve significantly the accuracy of the characteristics of the gyroscope at the same dimensions of optical ring resonator....
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...The more locked modes there are the less noises we have [4]....
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