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Laser gyro at quantum limit

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TLDR
In this article, it was shown that a certain fundamental limit applies to the accuracy of all optical rotation sensors which use laser light as a probe, and the same relationship is obtained from a spontaneous-emission noise formulation.
Abstract
We show that a certain fundamental limit applies to the accuracy of all optical rotation sensors which use laser light as a probe. We derive this fundamental rotation-rate uncertainty from the Heisenberg uncertainty relations and Glauber's minimum uncertainty states. The same relationship is obtained from a spontaneous-emission noise formulation. We present experimental data on a (nondithered) four-frequency ring laser gyroscope for which this limit is attained.

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Ring-laser tests of fundamental physics and geophysics

TL;DR: In this article, the capability of ring-laser gyros for measurements of geodesic interest, including seismometry and earth tides, and for detection of other sources of non-reciprocal refractive indices, including axions and CP violation, are discussed.
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Preparation, measurement and information capacity of optical quantum states

TL;DR: In this paper, the quantum noise is evaluated for various simultaneous measurements of two quadrature components: heterodyning, the beam splitter followed by two single quadratures measurements, the parametric amplifier, the (degenerate and/or nondegenerate) four-wave mixer, the Brillouin and Raman amplifiers, and the laser amplifier.
Journal ArticleDOI

Sub-Poissonian processes in quantum optics

TL;DR: In this article, a review of methods for generating sub-Poissonian light and related concepts is presented. But the authors focus on the conceptual foundations and developments in laser theory that lead to the possibility, already demonstrated experimentally, of linewidth narrowing and sub-poissonic light generation in lasers and masers.
Journal ArticleDOI

Ultrahigh enhancement in absolute and relative rotation sensing using fast and slow light

TL;DR: In this paper, the authors describe a resonator-based optical gyroscope whose sensitivity for measuring absolute rotation is enhanced via use of the anomalous dispersion characteristic of superluminal light propagation.
Journal ArticleDOI

Photonic technologies for angular velocity sensing

TL;DR: In this article, the role of integrated optics and photonic integrated circuit technology in the enhancement of gyroscope performance and compactness is broadly discussed, and the architecture of new slow-light integrated angular rate sensors is described.
References
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Dissertation

Dynamique et estimation paramétrique pour les gyroscopes laser à milieu amplificateur gazeux

Noad Badaoui
TL;DR: In this paper, the gyroscopes laser a gaz constituent a solution technique de haute performances dans les problematiques de navigation inertielle, i.e., they are used to provide a solution for haute performance dans the problem of haute solutions.
Proceedings ArticleDOI

Brillouin fast-light fiber laser super-sensor

TL;DR: In this article, the properties of a superluminal fiber laser based super-sensor employing Brillouin gain are analyzed. But the tradeoffs between the attainable sensitivity enhancement, the attainability of the attainably sensitivity enhancement and the cavity dimension are studied in detail.
Book ChapterDOI

Large Enhancement of the Sagnac Effect in a Nonlinear Ring Resonator and Related Effects

TL;DR: In this paper, a novel way is discussed to enhance the Sagnac effect and to obtain directionally asymmetric bistability by using a nonlinear ring resonator, which is based on nonlinear nonreciprocity induced by coun-terpropagating waves due to formation of nonlinear index grating.
Journal ArticleDOI

Rotation Sensing Lasers in General Relativity: Some Technical Notes and Current Advances

TL;DR: In this article, the authors review the current status of large ring laser gyroscopes having the potential to contribute to terrestrial measurements of general relativistic precessions and show that although these devices possess the raw sensitivity for such a measurement, they remain limited by long-term geometric instability, detection noise and imperfections in the physical models required to isolate geophysical effects.
Book ChapterDOI

He–Ne and Solid-State Ring Laser Gyroscopes

TL;DR: The commercial success of the He-Ne Ring Laser Gyroscope (RLG) began in the late 1980s and early 1990s as discussed by the authors, and it has become a widely diffused commercial device.