Absolute distance measurement method without a non-measurable range and directional ambiguity based on the spectral-domain interferometer using the optical comb of the femtosecond pulse laser

Park, Jungjae; Jin, Jonghan; Kim, J.-A.; Kim, J. W.

doi:10.1063/1.4971836

Cited by 26 publications

(2 citation statements)

References 17 publications

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“…In an effort to eliminate these NMR, several preceding studies have employed supplementary methods, including the synthetic wavelength interferometer proposed by Joo et al, 20 the dual-frequency phase modulated laser range finder (PLR) introduced by Wang et al, 5 the multiple-wavelength interferometer presented by van den Berg et al, 21 and the adoption of two reference mirrors as suggested by Kim et al 26 While these methods have been successful in extending measurement distance, they necessitate the support of intricate systems or redundant algorithms. Moreover, they fall short of completely resolving the inherent limitations present in DPI.…”

Section: Introductionmentioning

confidence: 99%

Nonmeasurable Range Elimination of Dispersive Interferometry

Huang,

Du,

Wang

et al. 2024

ACS Photonics

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Dispersive interferometry (DPI) stands as a formidable method in both scientific and industrial realms, offering the capability for numerous measurement scenarios with remarkable accuracy over extensive ranges. The advent of on-chip soliton microcombs (SMCs) boasting a high repetition rate illuminates a promising pathway toward measurements free from dead zones. However, its application scenarios are considerably constrained by the nonmeasurable range (NMR)�the region proximate to the measurement period's extreme points, which is circumscribed by the fast Fourier transform (FFT) steps and symmetry of the data calculation procedure. Here, we introduce an NMR elimination method that refines the DPI structure by engendering an asymmetric interference spectrum. Furthermore, a phase saltation tracking (PST) method for demodulating is devised, enabling measurements without NMR. Both simulation analyses and experimental outcomes affirm that our proposed method significantly enhances the performance of the DPI system by eliminating NMR and improving measurement precision. The Allan deviation of our method consistently remains lower than the DPI measurement results under identical conditions over an average time of 125 s, achieving 7.43 nm at 125 s. This method holds promising potential for application in emerging fields such as optical coherence tomography (OCT), long-distance ranging, and precision light detection and ranging (LIDAR).

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Section: Introductionmentioning

confidence: 99%

Nonmeasurable Range Elimination of Dispersive Interferometry

Huang,

Du,

Wang

et al. 2024

ACS Photonics

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“…Such an intrinsic limitation means that the laser interferometer cannot be widely exploited for newly emerging applications, especially for long distances. As a counterpart to laser displacement interferometry, absolute distance measurements have been proposed and realized by various approaches [6,7], including the time-of-flight method [8,9], amplitude modulation ranging [10][11][12][13][14], frequency modulation ranging [15][16][17], spectral resolved interferometry [18][19][20], multi-wavelength interferometry [21][22][23], dual-comb ranging [24][25][26], and microcomb ranging [27][28][29]. One of these examples is LIDAR (light detection and ranging), which works with the time-offlight method [30].…”

Section: Introductionmentioning

confidence: 99%

Periodic-Error-Free All-Fiber Distance Measurement Method With Photonic Microwave Modulation Toward On-Chip-Based Devices

Jang

Park

Jin

2022

IEEE Trans. Instrum. Meas.

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High-accuracy distance measurements with compact configurations and robust operations are necessary in areas ranging from precision engineering to scientific missions. Here, we report a precise and accurate amplitude-modulationbased all-fiber distance measurement method without periodic errors. To realize an all-fiber configuration towards on-chip devices in the future, certain selective components for easy fabrication on the chip scale were employed. Despite this constraint, sub-100 nm precision was demonstrated with the help of the all-photonic microwave mixing technique introduced in our previous work. In this paper, accuracy as another important factor for measuring distances was investigated to ensure better performance than in previous studies with an optical amplitudemodulation technique. By performing theoretical and experimental analyses of the periodic error while blocking electrical crosstalk signals and optimizing signal processing, accuracy of 2.6 μm (1 σ) was achieved in terms of measurement linearity according to a comparison with a laser displacement interferometer. With the best capabilities of precision and accuracy, the proposed all-fiber distance measurement method is expected to be utilized in diverse long-distance applications, such as large-machine axis tool work and formation flying by multiple satellites. Further, this study demonstrates the possibility of developing an on-chip-based distance-measuring device for the fourth industrial revolution.

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A Review of a Spectral Domain Interferometer with a Frequency Comb for Length Measurement

Jang,

Park,

Jin

2023

Int. J. Precis. Eng. Manuf.

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Absolute distance measurement method without a non-measurable range and directional ambiguity based on the spectral-domain interferometer using the optical comb of the femtosecond pulse laser

Abstract: Absolute distance measurement method without a non-measurable range and directional ambiguity based on the spectraldomain interferometer using the optical comb of the femtosecond pulse laser Cite as: Appl. Phys. Lett. 109, 244103 (2016); https://doi

Cited by 26 publications

References 17 publications

Nonmeasurable Range Elimination of Dispersive Interferometry

Nonmeasurable Range Elimination of Dispersive Interferometry

Periodic-Error-Free All-Fiber Distance Measurement Method With Photonic Microwave Modulation Toward On-Chip-Based Devices

A Review of a Spectral Domain Interferometer with a Frequency Comb for Length Measurement

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