Acta Optica Sinica, Volume. 12, Issue 9, 835(1992)
Two-dimension multiplexing optical fiber displacement sensor using frequency-modulated laser diode
Based on the principles of laser diode linear frequency modulation heterodyne interference and frequency division multiplexing, the multiplexing technique of the optical fiber displacement sensor is studied. A two-dimension-multiplexing optical fiber displacement sensor is designed and fabricated. The problem of the crosstalk of signals is studied. The experiment proves that the cross-term of the sensor is smaller than 0.02μm and the measurement accuracy of each channel is 0.05μm.
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[in Chinese], [in Chinese], [in Chinese]. Two-dimension multiplexing optical fiber displacement sensor using frequency-modulated laser diode[J]. Acta Optica Sinica, 1992, 12(9): 835