Design and Fabrication of Key Fiber Optic Devices for Mode Division Multiplexing Transmission
Citation
Keywords
- 模分复用 / Mode Division Multiplexing, MDM
- 模式选择性耦合器 / Mode Selective Coupler, MSC
- 深度神经网络 / Deep Neural Network, DNN
- 差分模式增益 / Differential Mode Gain, DMG
- 飞秒激光 / Femtosecond laser
- 少模光纤 / Few-Mode Fiber, FMF
- 超宽带 / Ultra-wideband
- 相位匹配 / Phase matching
- 转换效率 / Conversion efficiency
- 消光比 / Extinction ratio
- 轨道角动量 / Orbital Angular Momentum, OAM
- 模式纯度 / Mode purity
- 少模增益均衡器 / Few-mode gain equalizer
- 熔融拉锥法 / Fused tapering method
- 侧边研磨法 / Side-polishing method
Brief
This master's thesis focuses on the design and fabrication of key fiber optic devices for mode division multiplexing (MDM) transmission, specifically ultra-wideband mode selective couplers (MSCs) using deep neural networks (DNNs) and all-fiber devices for mitigating differential mode gain (DMG) using femtosecond laser-induced refractive index modulation.
Summary
This master's thesis focuses on designing and creating key components for mode division multiplexing (MDM), a technology to increase optical communication capacity. It introduces a new strategy using deep neural networks (DNNs) to design ultra-wideband mode selective couplers (MSCs) that efficiently multiplex and demultiplex different spatial modes over the S+C+L wavelength bands. The thesis also presents the development of all-fiber devices using femtosecond lasers to reduce differential mode gain (DMG) in few-mode fiber amplifiers, demonstrating effective DMG mitigation in a two-mode fiber amplifier.
Origin: