Sagnac effect in ring lasers and ring resonators. How does the refractive index of the optical medium influence the sensitivity to rotation?

Malykin, G. B.

doi:10.3367/ufne.0184.201407g.0775

Cited by 26 publications

(3 citation statements)

References 62 publications

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“…For testing the existence of the optical effect it is sufficient to perform, for example, measurements at

0

and

2

. The measurable difference

in (6) represents the prediction of standard special relativity based on the LT.

may be measured with standard interferometry or by means of ring laser techniques [8] , [30] , [31] . With standard interferometry there could be some problems of stability because of the change of speed of the contour.…”

Section: Contour In Variable Motionmentioning

confidence: 99%

The One-Way Linear Effect, a first order optical effect

Spavieri,

Haug

2023

Heliyon

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“…For testing the existence of the optical effect it is sufficient to perform, for example, measurements at

0

and

2

. The measurable difference

in (6) represents the prediction of standard special relativity based on the LT.

Section: Contour In Variable Motionmentioning

confidence: 99%

The One-Way Linear Effect, a first order optical effect

Spavieri,

Haug

2023

Heliyon

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“…A gyroscope is a sensor able to measure the angular velocity of its frame with respect to an inertial system. According to the Sagnac effect, the resonance frequency shift of a single isolated rotating optical ring resonator with respect to a rest condition is [ 79 ]

where λ is the wavelength in vacuum, R i the radius of the i -th ring resonator, n eff is the effective index of the optical waveguides and Ω is the angular velocity of the frame. The minus or plus sign is chosen if the mechanical rotation is in the same or opposite sense, respectively, of the rotation of the optical beam in the resonator.…”

Section: Sensing Applications Of Non-hermitian Photonicsmentioning

confidence: 99%

Non-Hermitian Sensing in Photonics and Electronics: A Review

Carlo

Leonardis

Soref

et al. 2022

Sensors

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Recently, non-Hermitian Hamiltonians have gained a lot of interest, especially in optics and electronics. In particular, the existence of real eigenvalues of non-Hermitian systems has opened a wide set of possibilities, especially, but not only, for sensing applications, exploiting the physics of exceptional points. In particular, the square root dependence of the eigenvalue splitting on different design parameters, exhibited by 2 × 2 non-Hermitian Hamiltonian matrices at the exceptional point, paved the way to the integration of high-performance sensors. The square root dependence of the eigenfrequencies on the design parameters is the reason for a theoretically infinite sensitivity in the proximity of the exceptional point. Recently, higher-order exceptional points have demonstrated the possibility of achieving the nth root dependence of the eigenfrequency splitting on perturbations. However, the exceptional sensitivity to external parameters is, at the same time, the major drawback of non-Hermitian configurations, leading to the high influence of noise. In this review, the basic principles of PT-symmetric and anti-PT-symmetric Hamiltonians will be shown, both in photonics and in electronics. The influence of noise on non-Hermitian configurations will be investigated and the newest solutions to overcome these problems will be illustrated. Finally, an overview of the newest outstanding results in sensing applications of non-Hermitian photonics and electronics will be provided.

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“…In ring-resonator based designs (Fig. 4), the resonance peaks in the transmission spectra for the counter-propagating optical signals incur equal and opposite shifts by ∆ν [13]:…”

Section: A Working Principle Of Resonant Gyroscopementioning

confidence: 99%

Design and Fabrication of a Ring-Coupled Mach-Zehnder Interferometer Gyroscope

Kempf

Labeye

Grosse

et al. 2021

ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference (ESSCIRC)

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In this paper, we present a CMOScompatible integrated photonics resonant gyroscope incorporating active Si&Ge components with low-loss SiN waveguiding structures for the first time. The gyroscope design is based on a ring-coupled Mach-Zehnder interferometer (19.2 mm ring length). Based on numerical modelling, the estimated resolution is 1.08 deg/s, representing a 1.56-times improvement over a single ring all-pass design with the same footprint. Further improvement afforded by the MZI-based design is expected under Kerr effet limited conditions. Devices were fabricated with the STMicroelectronics DAPHNE (Datacom Advanced Photonics Nanoscale Environment) 300 mm Photonic R&D platform. Experimental measurements under static (nonrotating) conditions confirm the numerical modelling results.

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Sagnac effect in ring lasers and ring resonators. How does the refractive index of the optical medium influence the sensitivity to rotation?

Cited by 26 publications

References 62 publications

The One-Way Linear Effect, a first order optical effect

The One-Way Linear Effect, a first order optical effect

Non-Hermitian Sensing in Photonics and Electronics: A Review

Design and Fabrication of a Ring-Coupled Mach-Zehnder Interferometer Gyroscope

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