Chao-xin SONG, Xiao-hua LEI, Lei XIE, Xian-ming LIU, Wei-min CHEN. Coupling Efficiency of Light Intensity from Blackbody Cavity into Spherical Optical Fiber[J]. Acta Photonica Sinica, 2020, 49(9): 0906001
- Acta Photonica Sinica
- Vol. 49, Issue 9, 0906001 (2020)
Fig. 1. Light-energy coupling model of light-cone blackbody radiation cavity
Fig. 2. Schematic diagram of Lambertian radiant intensity at a certain distance
Fig. 3. Schematic of the end of fused-ball fiber
Fig. 4. Auxiliary light path (0≤x < r s(1-cos θ ))
Fig. 5. Auxiliary light path (r s(1-cos θ )≤x < 0.4r s)
Fig. 6. Relationship between coupling light intensity and curvature radius of the end face of spherical fiber
Fig. 7. Spherical fiber with different curvature radius
Fig. 8. Black-body cavity structure of spherical end-face fiber coated with black-body reinforcement
Fig. 9. Schematic of the experimental system
Fig. 10. Relationship between coupling light intensity and wavelength at different temperatures and spherical fiber diameters
Fig. 11. Relationship between curvature radius and coupling strength at different temperatures
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