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    • 20. 发明授权
    • Semiconductor laser, module and optical transmitter
    • 半导体激光器,模块和光发射机
    • US08457168B2
    • 2013-06-04
    • US12086287
    • 2007-01-10
    • Koji KudoShinya SudoKenji SatoKenji Mizutani
    • Koji KudoShinya SudoKenji SatoKenji Mizutani
    • H01S5/00
    • H01S5/026
    • A semiconductor optical waveguide-A having an optical amplification function and a semiconductor optical waveguide-B having a light control function are integrated together on the same substrate. A facet of the semiconductor optical waveguide-A facing an isolation trench and a facet of the semiconductor optical waveguide-B facing the isolation trench are configured as a composite optical reflector/optical connector using an optical interference. The facet of the semiconductor optical waveguide-A achieves an optical reflectivity not higher than the reflectivity corresponding to a cleaved facet and not smaller than several percent, and an optical coupling coefficient of not lower than 50% between the semiconductor optical waveguide-A and the semiconductor optical waveguide-B.
    • 具有光放大功能的半导体光波导A和具有光控功能的半导体光波导-B一起集成在同一基板上。 面向隔离沟槽的半导体光波导A的面和面向隔离沟槽的半导体光波导-B的面被配置为使用光学干涉的复合光反射器/光连接器。 半导体光波导A的小面实现不高于对应于切割面的反射率并且不小于几个百分比的光学反射率,并且半导体光波导A与第二半导体光波导A之间的光耦合系数不低于50% 半导体光波导-B。