研究目的
To analyze the influence of gyrotropy on TE-TM mode conversion in a magnetic photonic crystal fiber of Yttrium iron garnet (YIG) and optimize the structure parameters for improved photonic devices performance.
研究成果
The paper presents a theoretical study of gyrotropy effect on the MPCF based on YIG, with optimized structure parameters achieving a maximum conversion efficiency of 93.57%. The numerical results show an improvement in MO properties, with increased Faraday rotation and reduced modal birefringence, making the structure suitable for applications in optical isolators, circulators, and switches.
研究不足
The study is theoretical and relies on simulations, which may not fully capture all real-world conditions and variations. The practical implementation of the optimized structure may face challenges in fabrication and integration into existing photonic devices.
1：Experimental Design and Method Selection:
The study involves theoretical analysis and simulation of the gyrotropy effect on the MPCF based on YIG. The Beam Propagation Method adopted by the software BeamPROP of the RSoft-company is used to simulate the mode conversion.
2：Sample Selection and Data Sources:
The structure consists of a MPC with triangular lattice of air holes filled with gallium gadolinium garnet (Gd3Ga5O12, GGG) etched in YIG fiber.
3：List of Experimental Equipment and Materials:
YIG fiber with nYIG = 2.28 and GGG with nGGG = 1.
4：28 and GGG with nGGG = Experimental Procedures and Operational Workflow:
96.
4. Experimental Procedures and Operational Workflow: The geometrical parameters of the MPCF are optimized to minimize losses. The influence of gyrotropy on the MO properties of the optimized MPCF is examined.
5：Data Analysis Methods:
The mode conversion efficiency, Faraday rotation, and modal birefringence are calculated and analyzed.
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