本論文提出以高分子聚合物步階式折射率波導設計適用於4通道 × 25 Gbps 單模光連接收發模組之光學系統，系統上包含了陶瓷基板與軟性電路板，並將雷射二極體、雷射驅動晶片、轉阻放大器晶片整合在陶瓷基板上，高分子聚合物波導、光檢測器整合在光學軟性電路板上。 由模擬結果得到:光學系統之發射端耦合效率為39.2 %，接收端耦合效率為84%。發射端在最大耦合效率下降至-1 dB時，雷射、高分子聚合物波導、單模光纖之位移容忍度皆可大於-1.5 μm~1.5 μm之範圍；接收端在最大耦合效率下降至-1 dB時，單模光纖、高分子聚合物波導、光檢測器之位移容忍度皆可大於-2.5 μm到2.5 μm之範圍。元件對準上可用主動式對準(active alignment)達到。 在符合100 Gbps PSM4功率規範之光學系統設計上，光學系統之發射端耦合效率為15.2 %，接收端耦合效率為81.9 %。發射端在最大耦合效率下降至-1 dB時，雷射、高分子聚合物波導、單模光纖之位移容忍度皆可大於-3 μm ~ 3 μm之範圍；接收端在最大耦合效率下降至-1 dB時，單模光纖、高分子聚合物波導、光檢測器之位移容忍度皆可大於-3 μm ~ 3 μm之範圍。元件對準上可用主動式對準(active alignment)達到。 ;In the thesis, the design of the optical system for 4-Channel × 25 Gbps single-mode optical interconnect module based on stepped-index polymer waveguide is proposed. The system includes a ceramic substrate and a flexible circuit board(FPC), a laser diode(LD), laser driver, and transimpedance amplifier(TIA) were integrated on the ceramic substrate, the polymer waveguide, photodiode were integrated on the FPC. According to the simulation results, the optical coupling efficiency of the transmitting end is 39.2%, and the optical coupling efficiency of the receiving end is 84 %.The -1 dB alignment tolerances of the LD to the polymer waveguide、single mode fiber(SMF) at the transmitting end are more than ±1.5 μm. The -1dB alignment tolerances of the SMF to the polymer waveguide、photodiode at the receiving end are more than ±2.5 μm. Component alignment can be achieved with active alignment. The design of optical system for 4-Channel × 25 Gbps optical interconnect module meets specification of 100Gbps PSM4. The optical coupling efficiency of the transmitting end is 15.2 %, and the optical coupling efficiency of the receiving end is 81.9 %.The -1dB alignment tolerances of LD、the polymer waveguide、single mode fiber(SMF) at the transmitting end are more than ±3 μm. The -1 dB alignment tolerances of SMF、the polymer waveguide、photodiode at the receiving end are more than ±3 μm. Component alignment can be achieved with active alignment.
