研究目的
Investigating the design of a compact adiabatic taper for coupling light between a grating coupler and a single-mode optical fiber at 1550 nm wavelength.
研究成果
The exponential design of the taper section has a maximum transmission for different thicknesses, achieving a coupling efficiency of 92% with a length of 22 μm, leading to a compact design.
研究不足
The study is limited to simulations using Lumerical mode solutions and does not include physical fabrication and testing of the proposed designs.
1：Experimental Design and Method Selection:
The study involves designing three different structures of tapers (linear, exponential, and cosine) based on the SOI platform to investigate their transmission efficiency.
2：Sample Selection and Data Sources:
The design uses a silicon thickness of up to 220nm and a buried oxide layer (BOX) of 2 μm.
3：List of Experimental Equipment and Materials:
Lumerical mode solutions with a mesh around 3nm are used for simulation.
4：Experimental Procedures and Operational Workflow:
The transmission of the tapered design is calculated for each structure, focusing on the coupling efficiency between a wide grating coupler and a nanophotonic waveguide.
5：Data Analysis Methods:
The transmission values are analyzed to determine the most efficient taper structure.
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