Study of Guided Optical Mode States in Magneto-Optical Fiber Devices
Citation
陈庚 (Chen Geng). (2024 年 3月). 磁光光纤器件中导波光模态研究 (Study of Guided Optical Mode States in Magneto-Optical Fiber Devices) [硕 士 学 位 论 文 (Master Thesis), 学科专业: 信息与通信工程 (Discipline: Information and Communication Engineering), 指导教师: 武保剑 教 授 (Supervisor: Prof. Wu Baojian)]. 电子科技大学 (University of Electronic Science and Technology of China).
Keywords
- 磁光光纤器件 / Magneto-Optical Fiber Devices
- 导波光模态 / Guided Optical Mode States
- 模分复用 / Mode Division Multiplexing, MDM
- 少模磁光光纤 / Few-Mode Magneto-Optical (MO) Fiber
- 磁光模式选择耦合器 / Mode Selective Coupler, MSC
- 磁光轨道角动量模式转换器 / Orbital Angular Momentum, OAM
- 模式传播特性 / Mode Propagation Characteristics
- 线偏振模式 / Linear Polarization, LP
- 精确模式 / Exact Modes
- 圆偏振 / Circular Polarization, CP
- 轨道角动量模式 / Orbital Angular Momentum, OAM
- 传播常数 / Propagation Constant
- COMSOL 仿真 / COMSOL Simulation
- 斯托克斯参数 / Stokes Parameters
- 弱磁场测量 / Weak Magnetic Field Measurement
- 耦合模微扰方法 / Coupled Mode Perturbation Method
- 模式耦合 / Mode Coupling
- 相位失配 / Phase Mismatch
Brief
This master's thesis theoretically and experimentally investigates guided optical mode states in magneto-optical fiber devices, focusing on the proposal and analysis of magnetically tunable mode selective couplers and orbital angular momentum mode converters for mode division multiplexing applications.
Summary
This master's thesis theoretically analyzes and proposes magnetically tunable magneto-optical fiber devices for mode division multiplexing, specifically focusing on mode selective couplers (MSCs) and orbital angular momentum (OAM) mode converters. It investigates their mode propagation and how magnetic fields can be used for tunability, including compensating for fabrication errors and broadening the operating wavelength range. The thesis also includes an initial experiment on mode conversion using a mechanical LPFG to explore the feasibility of future magneto-optical fiber grating experiments.
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