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Si-based laser subassembly for telecommunications

机译:电信用硅基激光组件

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摘要

Abstract: is used as a packaging medium to integrate a laser, lenses, and a back facet monitor into a compact sub-assembly suitable for low-cost laser packages. The sub-assembly consists of separate laser and detector/optics submounts made of silicon. Only a single axis alignment is required during assembly to align the lenses (300 $mu@m diameter sapphire spheres) with the laser active area. In a single lens configuration, the integrated sub- assembly had 25% coupling efficiency into single-mode fiber compared to 30% maximum coupling efficiency achieved on the optical bench. Coupling efficiencies of the integrated sub- assembly to 50 $mu@m multi-mode fiber greater than 70% were achieved. The effective numerical aperture of the back facet monitor in the sub-assembly was greater than 0.7. !3
机译:摘要:用作包装介质,将激光器,透镜和背面监视器集成到适合低成本激光封装的紧凑型子组件中。该子组件由单独的激光和由硅制成的检测器/光学子安装座组成。在组装过程中只需要单轴对准即可将透镜(直径为300μm的蓝宝石球)对准激光有效区域。在单透镜配置中,集成子组件与单模光纤的耦合效率为25%,而在光学平台上的最大耦合效率为30%。达到了集成子组件与50μm多模光纤的耦合效率大于70%的要求。子组件中背面监视器的有效数值孔径大于0.7。 !3

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