Yiwei Hao, Xinxin Kong, Qisheng Cai, Wenxi Zhang, Zhou Wu, Yu Dai, Yongbiao Wang. Analysis of Effect of Circulator Noise on Laser Interferometry System[J]. Acta Optica Sinica, 2021, 41(9): 0912003
- Acta Optica Sinica
- Vol. 41, Issue 9, 0912003 (2021)
Fig. 1. Principle diagram of laser interferometer ring
Fig. 2. Internal structure of typical circulator
Fig. 3. Relationship between displacement error and direction of circulator and its local magnification
Fig. 4. Point diffraction spatial light circulator
Fig. 5. Contrast test object of circulator displacement measurement
Fig. 6. Displacement measurement results of two circulators. (a) 1st set of measurement; (b) 2nd set of measurement; (c) 3rd set of measurement; (d) local magnification of 3rd set of measurement
Fig. 7. Displacement error of two circulators at different moments. (a) 3.000-3.010 s; (b) 5.000-5.010 s; (c) 7.000-7.010 s
Fig. 8. Displacement measurement data of two circulators in different target states. (a) State of rest; (b) state of motion
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Table 1. Directionality calculation results of two circulators
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