Dual-Comb Based Two-Dimensional Angle Measurement System

Zhou, Siyu; Le, Vunam; Ni, Kai; Zhou, Qian; Wu, Guanhao

doi:10.1364/cleo_si.2020.sm2n.6

Conference on Lasers and Electro-Optics 2020

DOI: 10.1364/cleo_si.2020.sm2n.6

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Dual-Comb Based Two-Dimensional Angle Measurement System

Siyu Zhou

Vunam Le

Kai Ni

et al.

Abstract: We present a dynamic angle measurement method based on dual-comb interferometry that can reach a precision of 0.08 arc-second with 1 kHz response speed. This method can also be applied at long stand-off distances.

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Grating-Corner-Cube-Based Roll Angle Sensor

Zhou

et al. 2020

Sensors

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This paper presents a specifically designed grating-corner-cube sensor for precise roll angle measurements. Owing to the diffraction characteristics of the transmission grating and reflection characteristics of the corner cube, two spatially separated parallel beams are naturally constructed. Through differential detection of the positions of two parallel beams, we experimentally demonstrate the possibility of a precise roll angle measurement at a high refresh rate. A performance evaluation of the proposed technique indicates a stability of 0.46 arcsec over 5 min. Compared with a commercial autocollimator over a range of 500 arcsec, the residuals are maintained within ±2 arcsec with a standard deviation of 1.37 arcsec. Furthermore, a resolution of 0.8 arcsec can be achieved using the proposed method. The developed compact roll angle sensor has potential applications in academic and industrial fields.

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Grating-Corner-Cube-Based Roll Angle Sensor

Zhou

et al. 2020

Sensors

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show abstract

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Dual-Comb Based Two-Dimensional Angle Measurement System

Abstract: We present a dynamic angle measurement method based on dual-comb interferometry that can reach a precision of 0.08 arc-second with 1 kHz response speed. This method can also be applied at long stand-off distances.

Cited by 1 publication

References 2 publications

Grating-Corner-Cube-Based Roll Angle Sensor

Grating-Corner-Cube-Based Roll Angle Sensor

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