Tilted Waveguide Gratings and Implications for Optical Waveguide-Ring Resonator

Ma, Huilian; Zhang, Jianjie; Chen, Zhen; Jin, Zhonghe

doi:10.1109/jlt.2015.2466093

Cited by 19 publications

(5 citation statements)

References 30 publications

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“…The in-cavity and out-cavity methods are two methods for improving the WRR's PER [85]. As shown in Figure 15, the tilted waveguide gratings (TWGs) with Brewster's angle were presented for the silica WRR [46], which is an in-cavity method with the most perceptible improvement [50]. The in-cavity PER can reach 40 dB by adding a 4 cm-long 45 • tilted grating to the original WRR and using the best structure parameters.…”

Section: Suppression Methods Of Polarization Fluctuation-induced Nois...mentioning

confidence: 99%

“…The shot-noise of the photodetector determines the ultimate sensitivity of the RIOG. However, many characteristics, including backscattering [10][11][12][13][14][15][16][17][18][19][20][21][22], back-reflection [23][24][25][26][27][28], nonlinear Kerr effect [29][30][31][32][33][34][35][36][37], polarization fluctuation [38][39][40][41][42][43][44][45][46][47][48][49][50], and laser frequency noise [51][52][53], have negative impacts. These negative impacts degrade the performance of RIOGs and make it worse than the shot-noise limited theoretical sensitivity.…”

Section: Introductionmentioning

confidence: 99%

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Suppression Method of Optical Noises in Resonator-Integrated Optic Gyroscopes

Kuai

Wei

Yang

et al. 2022

Sensors

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Resonator-integrated optical gyroscopes have advantages such as all-solid-state, on-chip integration, miniaturized structure, and high precision. However, many factors deteriorate the performance and push it far from the shot-noise limited theoretical sensitivity. This paper reviews the mechanisms of various noises and their corresponding suppression methods in resonator-integrated optical gyroscopes, including the backscattering, the back-reflection, the polarization error, the Kerr effect, and the laser frequency noise. Several main noise suppression methods are comprehensively expounded through inductive comparison and reasonable collation. The new noise suppression technology and digital signal processing system are also addressed.

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Section: Suppression Methods Of Polarization Fluctuation-induced Nois...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Suppression Method of Optical Noises in Resonator-Integrated Optic Gyroscopes

Kuai

Wei

Yang

et al. 2022

Sensors

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show abstract

“…Some detailed methods have been proposed in Refs. [132,138,153,[321][322][323][324][325][326][327][328][329].…”

Section: Outlook For Applicationsmentioning

confidence: 99%

Integrated photonic chips based on Sagnac interference

Juodkazis¹,

Moss²,

Wu³

et al. 2023

Preprint

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As a fundamental optical approach to interferometry, Sagnac interference has been widely used for reflection manipulation, precision measurements, and spectral engineering in optical systems. Compared to other interferometry configurations, it offers attractive advantages by yielding a reduced system complexity without the need for phase control between different pathways, thus offering a high degree of stability against external disturbance and a low wavelength dependence. The advance of integration fabrication techniques has enabled chip-scale Sagnac interferometers with greatly reduced footprint and improved scalability compared to more conventional approaches implemented by spatial light or optical fiber devices. This facilitates a variety of integrated photonic devices with bidirectional light propagation, showing new features and capabilities compared to unidirectional-light-propagation devices such as Mach-Zehnder interferometers (MZIs) and ring resonators (RRs). This paper reviews functional integrated photonic devices based on Sagnac interference. First, the basic theory of integrated Sagnac interference devices is introduced, together with comparisons to other integrated photonic building blocks such as MZIs, RRs, photonic crystal cavities, and Bragg gratings. Next, the applications of Sagnac interference in integrated photonics, including reflection mirrors, optical gyroscopes, basic filters, wavelength (de)interleavers, optical analogues of quantum physics, and others, are systematically reviewed. Finally, the open challenges and future perspectives are discussed.

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“…Also, the shape of the resonance curve is distorted by cross-polarization interference [5,61]. To reduce the magnitude of the error caused by polarization fluctuations, either stabilization of the position of the eigenfrequencies of one of the orthogonal polarizations in the middle of the intermode interval of the other polarization [14,[62][63][64] is required, or passive ring resonators with polarization-dependent losses, i.e., supporting only one polarization state, are used [28,35,43,65,66].…”

Section: The Main Sources Of Measurement Errorsmentioning

confidence: 99%

Directions of development of optical gyroscopes based on passive ring resonators

Filatov,

Shalymov,

Venediktova

et al. 2023

Advanced Sensor Systems and Applications XIII

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Tilted Waveguide Gratings and Implications for Optical Waveguide-Ring Resonator

Cited by 19 publications

References 30 publications

Suppression Method of Optical Noises in Resonator-Integrated Optic Gyroscopes

Suppression Method of Optical Noises in Resonator-Integrated Optic Gyroscopes

Integrated photonic chips based on Sagnac interference

Directions of development of optical gyroscopes based on passive ring resonators

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