Acta Optica Sinica, Volume. 15, Issue 6, 771(1995)
Multiplexing Technique of Optical Fiber Displacement Sensor Based on Heterodyne Interference with Frequency-Modulated Semiconductor Laser
In this paper, the multiplexing technique of optical fiber displacement sensor based on the principles of frequency-modulation continuous wave and heterodyne interference and frequency-division multiplexing is studied. A four-channel multiplexing optical fiber displanment sensors using the scheme of frequency-ampitude-division multiplexing is designed and fabricated. Many points or multi-dimension displacements or many physical parameters can be measured at the same time. The measurement accuracy of each channel is 0.1 μm and the measurement range is more than 1 mm. The hightest resolution of displacement is 0.01 μm.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Multiplexing Technique of Optical Fiber Displacement Sensor Based on Heterodyne Interference with Frequency-Modulated Semiconductor Laser[J]. Acta Optica Sinica, 1995, 15(6): 771