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    • 6. 发明专利
    • Semiconductor optical waveguide element and method for manufacturing semiconductor optical waveguide element
    • 半导体光波导元件和制造半导体光波导元件的方法
    • JP2014174335A
    • 2014-09-22
    • JP2013046976
    • 2013-03-08
    • Sumitomo Electric Ind Ltd住友電気工業株式会社
    • FURUYA AKIRAKITAMURA TAKAMITSUYAGI HIDEKIKONO NAOYA
    • G02B6/122G02B6/12G02F1/017
    • G02B6/305G02B6/1228G02B6/136G02B2006/12078G02F1/01708G02F1/2257G02F2001/212G02F2001/217G02F2201/04G02F2201/06G02F2201/063G02F2201/12G02F2202/101G02F2202/102G02F2202/108
    • PROBLEM TO BE SOLVED: To provide a semiconductor optical waveguide element including a spot size converter.SOLUTION: A semiconductor optical waveguide element 81 includes a third semiconductor mesa 55 in which a 31-st mesa portion 55b has an end face 55d that can be optically coupled, located at an edge of a substrate 11. The end face 55d can be optically coupled to an external optical waveguide. As the width of the 31-st mesa portion 55b and the width of a 32-nd mesa portion 55c of the third semiconductor mesa 55 are larger than the width of a second semiconductor mesa 49 in the semiconductor optical waveguide element 81, a mode field diameter equal to or close to a mode field diameter of the external optical waveguide can be imparted to an optical waveguide relating to the third semiconductor mesa 55. The width of the second semiconductor mesa 49 is smaller than the width of the 31-st mesa portion 55b and the width of the 32-nd mesa portion 55c of the third semiconductor mesa 55; and a first core layer 41 and a second core layer 53 are optically coupled to each other. Thereby, propagation of light proceeds from the first core layer 41 to the second core layer 53 or from the second core layer 53 to the first core layer 41.
    • 要解决的问题:提供一种包括光斑尺寸转换器的半导体光波导元件。解决方案:半导体光波导元件81包括第三半导体台面55,其中第31台面部分55b具有可以光学的端面55d 耦合,位于基板11的边缘。端面55d可以光耦合到外部光波导。 当第三台面部分55b的宽度和第三半导体台面55的第32台面部分55c的宽度大于半导体光波导元件81中的第二半导体台面49的宽度时,模场 可以将与外部光波导的模场直径相等或接近的直径赋予与第三半导体台面55相关的光波导。第二半导体台面49的宽度小于第31台面部分的宽度 55b和第三半导体台面55的第32台面部分55c的宽度; 并且第一芯层41和第二芯层53彼此光学耦合。 由此,光的传播从第一芯层41到第二芯层53或从第二芯层53延伸到第一芯层41。
    • 10. 发明专利
    • Fiber laser device
    • 光纤激光器件
    • JP2011187791A
    • 2011-09-22
    • JP2010052851
    • 2010-03-10
    • Fujikura Ltd株式会社フジクラ
    • OBA YASUHIRONAKAI MICHIHIRO
    • H01S3/06G02F1/35G02F1/37H01S3/0933
    • H01S3/06754G02F1/33G02F1/3526G02F1/37G02F2201/04G02F2201/307H01S3/0078H01S3/0092H01S3/0675H01S3/094076H01S3/10015H01S3/10046H01S3/10069H01S3/10092H01S3/1022H01S3/1068H01S3/1301H01S3/2375H01S3/302
    • PROBLEM TO BE SOLVED: To provide a fiber laser device capable of suppressing dispersion of a rising period of a laser beam to be output while shortening the rising period of the laser beam to be output. SOLUTION: This fiber laser device 100 includes a seed laser beam source 10, an excitation light source 20, an optical fiber 30 for amplification, a control part 60, and an output command part 65. When an output command is input to the control unit 60, the control unit 60 controls the seed laser beam source 10 and excitation light source 20 so that they are brought in a preliminary excitation state and an output state. In the preliminary excitation state, excitation light of an intensity defined based on the length of a period from an end point of the output state before the output command is input to the control part 60 to a point when the output command is input to the control part 60 is output from the excitation light source 20 for a certain period. In the output state, a laser beam is output from the seed laser beam source 10 so that the laser beam is output from an output part 50, and excitation light is output from the excitation light source 20. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供能够抑制要输出的激光束的上升周期的色散的光纤激光器件,同时缩短要输出的激光束的上升周期。 解决方案:该光纤激光装置100包括种子激光束源10,激发光源20,用于放大的光纤30,控制部60和输出指令部65.当输出命令被输入到 控制单元60,控制单元60控制种子激光束源10和激发光源20使得它们处于预激励状态和输出状态。 在初步激励状态下,将基于从输出指令前的输出状态的终点的期间的长度定义的强度的激励光输入到控制部60,将输出指令输入到控制部60 部分60从激发光源20输出一段时间。 在输出状态下,从种子激光束源10输出激光,使得激光从输出部50输出,激发光从激发光源20输出。(C) 2011年,JPO&INPIT