| Original Articles |
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Effects of Polarization-Maintaining Fibre Degrading on Precision of Fibre Optic Gyroscopes in Radiation Environment |
| XIAO Wen;LIU De-Wen;LIU Yang;YI Xiao-Su;CONG Lin |
| School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083 |
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| Cite this article: |
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XIAO Wen, LIU De-Wen, LIU Yang et al 2008 Chin. Phys. Lett. 25 1224-1226 |
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Abstract In the space environment, the precision of fibre optic gyroscopes (FOGs) degrades because of space radiation. Photonic components of FOGs are affected by radiation, especially the polarization-maintaining (PM) fibre coil. In relation to the space radiation environment characteristic, we have carried
out a series of radiation experiments on a PM fibre coil with 60Co radiation source at different dose rates. Based on the experimental results, the formula between the PM-fibre loss and radiation dose rate is built, and the relation between the precision of FOG and radiation dose is obtained accordingly. The results strongly show that the precision of our FOG degrades owing to the
attenuation of the polarization-maintaining fibre, which provides theoretical foundation for the radiation-resistant design of the FOG.
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| Keywords:
07.60.Vg
07.89.+b
42.15.Eq
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Received: 09 October 2007
Published: 31 March 2008
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| PACS: |
07.60.Vg
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(Fiber-optic instruments)
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07.89.+b
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(Environmental effects on instruments (e.g., radiation and pollution effects))
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42.15.Eq
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(Optical system design)
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