Laser & Optoelectronics Progress, Volume. 62, Issue 17, 1739018(2025)
Perfect Vertical Grating Coupler for Multi-Core Fiber Communication (Invited)
Fig. 1. Schematic diagram of PVGC. (a) Alignment and packaging of the PVGC array and MCF; (b) three-dimensional diagram of the proposed PVGC; (c) cross-sectional view of PVGC
Fig. 2. Opimization of PVGC. (a) Flow chart of optimizing PVGC; (b) FOM evolution process; (c) structural parameters for the optimized PVGC
Fig. 3. Performance simulation analysis of PVGC. (a) Simulated electric field distribution at 1550 nm; (b) transmission spectra; (c) transmission spectra under different fiber tilt angles
Fig. 4. Fabrication robustness analysis. (a) Impact of etching width variations on transmission spectrum; (b) impact of etching depth variations on transmission spectrum
Fig. 5. Experimental setup and results. (a) Measurement setup; (b) microscope image of PVGC; (c) zoom-in view of PVGC; (d) measured transmission spectra under different fiber tilt angles
Fig. 6. PVGC array and performance test results. (a) Physical map of PVGC array (insert: zoom-in view of the reference grating coupler and the PVGC array); (b) measurement results of PVGC array
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Ye Tian, Rui Jiang, Jiaming Zhang, Shilong Pan, Ang Li. Perfect Vertical Grating Coupler for Multi-Core Fiber Communication (Invited)[J]. Laser & Optoelectronics Progress, 2025, 62(17): 1739018
Category: AI for Optics
Received: Apr. 7, 2025
Accepted: May. 26, 2025
Published Online: Sep. 12, 2025
The Author Email: Ang Li (ang.li@nuaa.edu.cn)
CSTR:32186.14.LOP250947