Fig. 1. Azimuth transmission system based on polarization-maintaining fiber

Fig. 2. Structure of the panda polarization-maintaining fiber. (a) Schematic diagram of the cross section; (b) schematic diagram of the stress action

Fig. 3. Error graph under temperature action. (a) α=30'; (b) α=30°

Fig. 4. Error caused by azimuth. (a) 20--80 ℃; (b) -80---20℃

Fig. 5. Error caused by the length of temperature action. (a) 20--100 ℃; (b) -70---5 ℃

Fig. 6. Error caused by temperature. (a) Temperature is 0, 10, 30, 50 ℃; (b) temperature is 0, -10, -30, -50 ℃

Fig. 7. Errors caused by polarization-maintaining fiber materials at different mole fractions. (a) 5--70 ℃; (b) -70---5 ℃

Fig. 8. Variation curve of the azimuth calculation error with Poisson’s ratio and temperature

Fig. 9. Error graph of electric field action

Fig. 10. Error caused by azimuth

Fig. 11. Error caused by the length of polarization-maintaining fiber under the action of electric field

Fig. 12. Error caused by electric field amplitude