Jing Jin, Tiezhi Li, Xiaowei Wang, Shen Tan, Zhiyu Guo, Ningfang Song. Fiber Optic Gyroscopes for Space Applications[J]. Chinese Journal of Lasers, 2022, 49(19): 1910001
- Chinese Journal of Lasers
- Vol. 49, Issue 19, 1910001 (2022)
Fig. 1. Diagram of single axis IFOG
Fig. 2. Configuration of six-independent-axis IFOG
Fig. 3. Configuration of four-axis IFOG with two sharing light sources
Fig. 4. Flow chart of IFOG fault diagnosis
Fig. 5. Configuration of 3-axis IFOGs with further miniaturization. (a) Miniature 3-axis IFOG; (b) 3-axis IFOG based on TDM technology
Fig. 6. Miniaturized components. (a) PIN-FET; (b) small-diameter PMF; (c) mini fiber coils
Fig. 7. PM-PCF. (a) Cross section; (b) PM-PCF coil
Fig. 8. RIA of PM-PCF at different wavelengths
Fig. 9. Results of bias drift and noise test for the IFOGs. (a) Miniature four-axis IFOG; (b) miniature three-axis IFOG；(c) PM-PCF IFOG
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Table 1. Failure modes and failure rates of components
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Table 2. Parameters of PM-PCF for spacial IFOGs
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Table 3. Typical spacial IFOGs developed by Beihang University
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