Characterizing microring resonators using optical frequency domain reflectometry

Zhang, Xiaopei; Yin, Yuexin; Yin, Xiaobin; Wen, Yongqiang; Zhang, Xiaolei; Li, Xiaoping; Lv, Hualiang

doi:10.1364/ol.425681

Cited by 10 publications

(3 citation statements)

References 30 publications

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“…From the formula (11), it can be seen that the vibration will broaden the beat frequency spectrum by introducing harmonic components related with fm around the location of the beat frequency. Figure 2 shows the first three order Bessel functions.…”

Section: Theoretical Analysis and Simulationmentioning

confidence: 99%

“…OFDR technology is well-suited for the arm-length difference measurement of fiber interferometers, due to its measurement range of about tens to hundreds of meters, with spatial resolution of tens of microns and no dead zone [9], [10], [11]. However, it is usually assumed that the fiber interferometer under test is static, or unchanging, when OFDR is used [12].…”

Section: Introductionmentioning

confidence: 99%

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An ERPNS Technology Based on OFDR for Accurate Arm-Length Difference Measurement of Optical Fiber Interferometer Under Dynamic Environment

Shuai,

Ye,

2024

IEEE Photonics J.

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Accurate measurement of interferometer arm-length difference is very important in the application fields such as fiber optic hydrophones. However, the interferometer is very sensitive to the environmental vibration and noise, which affects the accuracy of the interferometer measurement. A novel environmental random phase noise separation (ERPNS) technology is proposed to effectively reduce optical frequency domain reflectometer (OFDR)'s sensitivity to environmental vibration for the measurement of the fiber interferometer. A set of optical paths based on dual-laser coherent detection technology and the related ERPNS algorithm was developed to extract the environmental phase noise from the measurement data. The OFDR's sensitivity to vibration is decreased by ~60dB in theory and a measurement accuracy better than 0.05mm for the static arm length difference of 74.51902m in different dynamic environment is achieved experimentally, with 56μm of spatial resolution in the maximum detectable distance of about 75m.

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Section: Theoretical Analysis and Simulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An ERPNS Technology Based on OFDR for Accurate Arm-Length Difference Measurement of Optical Fiber Interferometer Under Dynamic Environment

Shuai,

Ye,

2024

IEEE Photonics J.

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“…So, it is significant to develop a nondestructive method for realizing a distributed measurement of optical fiber Young's modulus. Optical frequency domain reflectometry (OFDR) is a spatially resolved method for analyzing optical backscattering in an optical fiber [10][11][12][13] and has been widely used to realize a distribution measurement of temperature [14,15], strain [16,17], shape [18,19], refractive index [20], and water level [21]. Nevertheless, the researchers have not focused on optical fiber Young's modulus measurement based on an OFDR so far.…”

Section: Introductionmentioning

confidence: 99%

A Nondestructive Measurement Method of Optical Fiber Young’s Modulus Based on OFDR

Zhong

et al. 2022

Sensors

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A nondestructive measurement method based on an Optical frequency domain reflectometry (OFDR) was demonstrated to achieve Young’s modulus of an optical fiber. Such a method can be used to measure, not only the averaged Young’s modulus within the measured fiber length, but also Young’s modulus distribution along the optical fiber axis. Moreover, the standard deviation of the measured Young’s modulus is calculated to analyze the measurement error. Young’s modulus distribution of the coated and uncoated single mode fiber (SMF) samples was successfully measured along the optical fiber axis. The average Young’s modulus of the coated and uncoated SMF samples was 13.75 ± 0.14, and 71.63 ± 0.43 Gpa, respectively, within the measured fiber length of 500 mm. The measured Young’s modulus distribution along the optical fiber axis could be used to analyze the damage degree of the fiber, which is very useful to nondestructively estimate the service life of optical fiber sensors immersed into smart engineer structures.

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High-Resolution and High-Precision ϕ-OFDR Strain Sensing Scheme Based on Adaptive Phase Unwrapping and Wavelet Packet Denoising

Liu,

Yin,

Zhang

et al. 2024

J. Lightwave Technol.

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Characterizing microring resonators using optical frequency domain reflectometry

Cited by 10 publications

References 30 publications

An ERPNS Technology Based on OFDR for Accurate Arm-Length Difference Measurement of Optical Fiber Interferometer Under Dynamic Environment

An ERPNS Technology Based on OFDR for Accurate Arm-Length Difference Measurement of Optical Fiber Interferometer Under Dynamic Environment

A Nondestructive Measurement Method of Optical Fiber Young’s Modulus Based on OFDR

High-Resolution and High-Precision ϕ-OFDR Strain Sensing Scheme Based on Adaptive Phase Unwrapping and Wavelet Packet Denoising

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