研究目的
Investigating the modal properties of a varied high indexed large core 4-mode photonic crystal fiber and analyzing the effects of material refractive index variation, air hole diameters, and distances between holes on the fiber's performance.
研究成果
The proposed varied high indexed, large core 4-mode photonic crystal fiber shows promising results for both sensing and data transmission applications, with Ge-doped PCFs demonstrating better mode confinement for data transmission and undoped PCFs being more suitable for sensing due to power spillage into the surrounding area.
研究不足
The study is limited to simulations and does not include experimental validation. The effects of real-world conditions on the fiber's performance are not considered.
1：Experimental Design and Method Selection:
The study involves simulating undoped and doped photonic crystal fiber (PCF) cross-sections with a hexagonal lattice of 7 rings using RSoft Beam Propagation platform. The effects of varying the pitch (distance between holes) on mode properties are examined.
2：Sample Selection and Data Sources:
The simulations compare undoped silica fiber and Ge-doped silica fiber, focusing on their mode confinement and power retention capabilities.
3：List of Experimental Equipment and Materials:
RSoft Beam Propagation platform for simulation, Ge-doped and undoped silica fibers.
4：Experimental Procedures and Operational Workflow:
The pitch is initially set to 5μm and varied to observe effects on mode properties. The power retention and mode confinement are analyzed for both fiber types.
5：Data Analysis Methods:
The transverse modal fields, mode spectrum, and power coupled into the modes are computed for both fiber types to analyze their performance in sensing and data transmission applications.
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