Xiufang Wang, Lina Feng, Peng Chen, Zhen Huang, Ye Yuan. Micro displacement reconstruction of self-mixing grating interferometer based on Littrow structure[J]. Chinese Optics Letters, 2021, 19(10): 101402
- Chinese Optics Letters
- Vol. 19, Issue 10, 101402 (2021)
Fig. 1. Schematic diagram of SMGI.
Fig. 2. Grating diffraction principle diagram.
Fig. 3. Flow chart of integral reconstruction algorithm.
Fig. 4. Simulation harmonic vibration signals (C
Fig. 5. Experimental setup.
Fig. 6. Experimental results of sinusoidal vibration. (a) Interference signals. (b) Filtered interference signals. (c) Reconstruction displacement (blue) and theoretical target displacement (red). (d) Errors.
Fig. 7. Experimental results of random vibration. (a) Interference signals. (b) Filtered interference signals. (c) Reconstruction displacement (blue) and theoretical target displacement (red). (d) Errors.
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Table 1. Physical Meaning of Symbols in Equations
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Table 2. Errors of Sinusoidal Vibration
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