Fig. 1. Cross section of panda polarization-maintaining fiber

Fig. 2. Variation in birefringence of panda polarization-maintaining fiber with fiber size when fiber material and difference in temperature are invariant

Fig. 3. Basic mode distributions of panda polarization-maintaining fiber on fiber cross section when fiber size decreases. (a) n=1; (b) n=3; (c) n=5; (d) n=10; (e) n=20; (f) n=40

Fig. 4. Simulated birefringence of panda polarization-maintaining fiber varying with temperature

Fig. 5. Birefringence of panda polarization-maintaining fibers with different sizes varying with temperature. (a) d=83.333 μm; (b) d=6.25 μm; (c) d=3.125 μm

Fig. 6. Diagram of system for measuring Lb of polarization-maintaining

Fig. 7. Temperature characteristic of birefringence of panda polarization-maintaining fiber

Fig. 8. Temperature characteristic of beat-length of panda polarization-maintaining fiber

Fig. 9. Temperature characteristic of birefringence of panda polarization-maintaining micro/nanofiber

Fig. 10. Temperature characteristic of beat-length of panda polarization-maintaining micro/nanofiber