Shi Jianbo, Zhang Juan, Liu Dean. Fiber-Optic Four-Channel Dual-Balanced Heterodyne Phase Detection[J]. Chinese Journal of Lasers, 2019, 46(9): 904005
- Chinese Journal of Lasers
- Vol. 46, Issue 9, 904005 (2019)
Fig. 1. Schematic of fiber-optic four-channel dual-balanced heterodyne phase detection
Fig. 2. Phase detection values at 500.5 kHz
Fig. 3. Difference frequency signal diagrams at different frequencies. (a) 900.5 Hz; (b) 100.5 KHz; (c) 2.05 MHz
Fig. 4. Phase values at different modulation frequencies
Fig. 5. Phase values at different fiber splitting ratios and 700.5 kHz
Fig. 6. Trend graph of different fiber splitting ratios and standard deviations at 700.5 kHz
Fig. 7. Signal intensity as a function of receiving angle
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Table 1. Phase detection accuracy at different frequencies
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Table 2. Phase detection accuracy at different fiber splitting ratios and 700.5 kHz
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