Energy analysis method of the laser tracing measurement optical system

Hongfang Chen; Liang Tang; Huixu Song; Bo Yu; Zhaoyao Shi

doi:10.1117/12.2511266

7 March 2019 Energy analysis method of the laser tracing measurement optical system

Hongfang Chen, Liang Tang, Huixu Song, Bo Yu, Zhaoyao Shi

Proceedings Volume 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation; 110530E (2019) https://doi.org/10.1117/12.2511266
Event: 10th International Symposium on Precision Engineering Measurements and Instrumentation (ISPEMI 2018), 2018, Kunming, China

Abstract

This paper proposes an energy analysis method of the laser tracing measurement optical system. Based on the principle of the laser tracing measurement optical system, an energy model is established to analyze the effects of non-ideal optical elements on the energy of the optical system. The simulation results show that the interference pattern is the most obvious when the split ratios of the beam splitters in the interference part and the tracing part are respectively 6:4 and 7:3. Under the above split ratios, the interference signal energy values of four receivers are close to each other and the visibility of fringe pattern reaches 0.99. The visibility of fringe patterns of four interference signals is reduced when the reflectivity of all polarization beam splitters is under non-ideal conditions in an entire optical system. The non-ideality of the transmittance of the polarization beam splitters does not affect the visibility of fringe patterns. The paper provides the theoretical basis for the accuracy improvement, reliability evaluation, optical system design and the selection of optical elements of laser tracing measurement systems.

Citation Download Citation

Hongfang Chen, Liang Tang, Huixu Song, Bo Yu, and Zhaoyao Shi "Energy analysis method of the laser tracing measurement optical system", Proc. SPIE 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation, 110530E (7 March 2019); https://doi.org/10.1117/12.2511266

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KEYWORDS

Beam splitters

Optical testing

Mirrors

Laser optics

Laser systems engineering

Fringe analysis

Visibility

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