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Article

Calculating the Effective Center Wavelength for Heterodyne Interferometry of an Optical Frequency Comb

1
State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
2
Institute of Spacecraft System Engineering, China Academy of Space Technology, Beijing 100094, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2018, 8(12), 2465; https://doi.org/10.3390/app8122465
Received: 11 November 2018 / Revised: 28 November 2018 / Accepted: 29 November 2018 / Published: 3 December 2018
(This article belongs to the Special Issue Precision Dimensional Measurements)
Heterodyne interferometry based on an optical frequency comb (OFC) is a powerful tool for distance measurement. In this paper, a method to calculate the effective center wavelength of wide spectrum heterodyne interference signal was explored though both simulation and experiment. Results showed that the effective center wavelength is a function of the spectra of the two interfered beams and time-delay of the two overlapped pulses. If the product of the spectra from two arms is symmetric, the effective center wavelength does not change with time-delay of the two pulses. The relative difference between the simulation and experiment was less than 0.06%. View Full-Text
Keywords: optical frequency comb; heterodyne interferometry; center wavelength optical frequency comb; heterodyne interferometry; center wavelength
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MDPI and ACS Style

Xiong, S.; Wang, Y.; Cai, Y.; Liu, J.; Liu, J.; Wu, G. Calculating the Effective Center Wavelength for Heterodyne Interferometry of an Optical Frequency Comb. Appl. Sci. 2018, 8, 2465. https://doi.org/10.3390/app8122465

AMA Style

Xiong S, Wang Y, Cai Y, Liu J, Liu J, Wu G. Calculating the Effective Center Wavelength for Heterodyne Interferometry of an Optical Frequency Comb. Applied Sciences. 2018; 8(12):2465. https://doi.org/10.3390/app8122465

Chicago/Turabian Style

Xiong, Shilin, Yue Wang, Yawen Cai, Jiuli Liu, Jie Liu, and Guanhao Wu. 2018. "Calculating the Effective Center Wavelength for Heterodyne Interferometry of an Optical Frequency Comb" Applied Sciences 8, no. 12: 2465. https://doi.org/10.3390/app8122465

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