The Order Calibration of Vernier Squared Envelope Extracted by the Hilbert-Huang Transform

Zuo, Guomeng; Xia, Li; Chen, Jing; Zhao, Yang; Qi, Ruilin; Li, Shiyu; Wu, Ying

doi:10.1109/jlt.2020.3041625

Cited by 5 publications

(2 citation statements)

References 23 publications

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“…The combination with new technology is a way to improve the Vernier effect. For example, an effective way to improve the detection range of the Vernier effect is to use signal processing technology to expand the envelope periodically [33]. The development of higher sensitivity also can be combined with new modes, such as the use of a low-mode interferometer to modulate the large envelope of the Vernier effect, which allows the excellent wavelength offset performance of the large envelope to be retained [32].…”

Section: Experiments and Discussionmentioning

confidence: 99%

“…Recently, people have also begun to consider signal processing methods to solve the envelope problem. Zuo et al proposed the use of Hilbert-Huang transform to extract the square envelope of the Vernier for order calibration so that the measurement range is increased several times [33]. However, the sensitivity of the sensor and the measurement range are always in competition.…”

Section: Introductionmentioning

confidence: 99%

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Study of the Vernier Effect Based on the Fabry–Perot Interferometer: Methodology and Application

et al. 2021

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The optical Vernier effect is a powerful tool for improving the sensitivity of an optical sensor, which relies on the use of two sensor units with slightly detuned frequencies. However, an improper amount of detuning can easily cause the Vernier effect to be unusable. In this work, the effective generation range of the Vernier effect and the corresponding interferometer configuration are suggested and experimentally demonstrated through a tunable cascaded Fabry–Perot interferometer structure. We further demonstrate a practical method to increase the magnification factor of the Vernier effect based on the device bandwidth. Only the optical path length of an interferometer probe and the sensitivity of the measurement parameters are needed to design this practical interferometer based on the Vernier effect. Our results provide potential insights for the sensing applications of the Vernier effect.

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Section: Experiments and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of the Vernier Effect Based on the Fabry–Perot Interferometer: Methodology and Application

et al. 2021

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High Sensitivity Temperature Sensor Based on Harmonic Vernier Effect

Zhu

Zhang

2023

Photonic Sens

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A high-sensitivity temperature sensor based on the harmonic Vernier effect is proposed and verified by experiments. The main component of the sensor is a Sagnac interferometer consisting of two sections of polarization maintaining fibers (PMFs) spliced with an intersection angle of 45° between their fast axes. The harmonic Vernier effect is achieved by setting the length of one of the PMFs an integral multiple (i-times) of the length of the other plus a detuning factor. Compared with the Sagnac interferometer based on the fundamental Vernier effect, the temperature sensitivity of the harmonic Vernier effect is higher, reaching i+1 times of that of the fundamental Vernier effect (i is the order of the harmonic).

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Demonstration of Improving the Performance of a Fibre Optic Displacement Sensor Using the Optical Harmonic Vernier Effect by Cascading Tapered Optical Single-Mode Fibres

Guillen-Ruiz,

Anzueto-Sanchez,

Martínez-Rios

et al. 2023

IEEE Photonics J.

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The Order Calibration of Vernier Squared Envelope Extracted by the Hilbert-Huang Transform

Cited by 5 publications

References 23 publications

Study of the Vernier Effect Based on the Fabry–Perot Interferometer: Methodology and Application

Study of the Vernier Effect Based on the Fabry–Perot Interferometer: Methodology and Application

High Sensitivity Temperature Sensor Based on Harmonic Vernier Effect

Demonstration of Improving the Performance of a Fibre Optic Displacement Sensor Using the Optical Harmonic Vernier Effect by Cascading Tapered Optical Single-Mode Fibres

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