Qi He, Zhengang Zhao, Xiaoping Xu, Chuan Luo, Yingna Li, Chuan Li. Signal Coupling Analysis of Single-Mode Large Beam Fiber Collimating Lens Based on ZEMAX[J]. Laser & Optoelectronics Progress, 2021, 58(21): 2106008
- Laser & Optoelectronics Progress
- Vol. 58, Issue 21, 2106008 (2021)
Fig. 1. Light intensity distribution of Gaussian beam along the z axis
Fig. 2. Schematic diagram of coupling structure for large beam fiber collimating lens
Fig. 3. Schematic diagram of coupling mismatch. (a) Axial mismatch; (b) radial mismatch; (c) angular mismatch
Fig. 4. Parameters of large beam collimating lens
Fig. 5. Light path diagram of collimating lens model
Fig. 6. Image quality assessment chart. (a) Spot diagram; (b) geometric image
Fig. 7. System model
Fig. 8. System coupling efficiency
Fig. 9. Coupling efficiency of radial mismatch system
Fig. 10. Coupling efficiency of angular mismatch system
Fig. 11. Coupling experiment of large beam collimating lens
Fig. 12. Relationship between three mismatches and output power. (a) Radial mismatch;（b）angular mismatch；（c）axial mismatch
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Table 1. Parameters of collimating lens
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