Two-color absolute length measuring method based on pulse repetition interval lengths

Wei, Dong; Aketagawa, Masato; Takamasu, Kiyoshi; Matsumoto, Hirokazu

doi:10.1117/1.oe.53.12.122413

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…Based on the analogy between the wavelength and the APRIL, we proposed the APRIL-based two-color method, which can eliminate the air turbulence of errors induced by the group refractive index [18,19].…”

Section: Two-color Methodsmentioning

confidence: 99%

Correction of refraction index based on adjacent pulse repetition interval lengths

Wei

Aketagawa

2014

SPIE Proceedings

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Correction of refraction index is important for length measurement. The two-color method has been widely used for correction. The wavelengths of lasers have been used as a ruler of that. Based on the analogy between the wavelength and the adjacent pulse repetition interval length (APRIL), in this paper we investigate the possibility of two-color method based on adjacent pulse repetition interval lengths. Since the wavelength-based two-color method can eliminate the inhomogeneous disturbance of effects caused by the phase refractive index, therefore the APRIL-based two-color method can eliminate the air turbulence of errors induced by the group refractive index. Our analysis will contribute to high-precision length measurement.

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Section: Two-color Methodsmentioning

confidence: 99%

Correction of refraction index based on adjacent pulse repetition interval lengths

Wei

Aketagawa

2014

SPIE Proceedings

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“…Our supposition is that there is a one-to-one relationship between the integer part and the group delay distance. This idea was inspired by the two-color method [15]- [18], which is an accurate length-correction method that does not require the precise measurement of the environmental parameters. The two-color method can be understood as follows.…”

Section: Introductionmentioning

confidence: 99%

Using dispersion-induced group delay to solve the integer ambiguity problem: a theoretical analysis

Wei

Xiao

Aketagawa

2015

J. Eur. Opt. Soc.-Rapid Publ.

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This paper describes a novel approach for solving the integer ambiguity problem when the adjacent pulse repetition interval length (APRIL) from a femtosecond optical frequency comb (FOFC) is used as a length scale. This approach is inspired by the two-color method, which indicates that there is a one-to-one relationship between the integer part of the APRIL and the group delay distance between the two different wavelengths. Accordingly, we numerically investigate the possibility of using dispersion-induced group delay to solve the integer ambiguity problem. The results of theoretical analyses and numerical investigations demonstrate the feasibility of the proposed method. Our results should contribute toward the further development of APRIL-based length measurement methods.

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Simultaneous distance measurement at multiple wavelengths using the intermode beats from a femtosecond laser coherent supercontinuum

Salido-Monzú

2018

Opt. Eng.

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Two-color absolute length measuring method based on pulse repetition interval lengths

Cited by 5 publications

References 21 publications

Correction of refraction index based on adjacent pulse repetition interval lengths

Correction of refraction index based on adjacent pulse repetition interval lengths

Using dispersion-induced group delay to solve the integer ambiguity problem: a theoretical analysis

Simultaneous distance measurement at multiple wavelengths using the intermode beats from a femtosecond laser coherent supercontinuum

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