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    • 3. 发明专利
    • Semiconductor laser device, semiconductor laser module, optical fiber amplifier, and method for selecting semiconductor laser device
    • 半导体激光器件,半导体激光器模块,光纤放大器和选择半导体激光器件的方法
    • JP2003324246A
    • 2003-11-14
    • JP2003049927
    • 2003-02-26
    • Furukawa Electric Co Ltd:The古河電気工業株式会社
    • SHIMIZU YUTAKAYOSHIDA JIYUNJITSUKIJI NAOKIOKI YASUSHI
    • G02B6/42H01S3/10H01S3/30H01S5/125
    • PROBLEM TO BE SOLVED: To obtain a semiconductor laser device prevented from generating induced Brillouin scattering. SOLUTION: An n-InP buffer layer 2, a GRIN-SCH-MQW active layer 3 and a p-InP spacer layer 4 are laminated on the surface of an n-InP substrate 1. A p-InP blocking layer 8 and an n-InP blocking layer 9 are laminated adjacently to the upper region of the buffer layer 2, the active layer 3 and the spacer layer 4. A p-InP clad layer 6, a p-GaInAsP contact layer 7 and a p-side electrode 10 are laminated on the spacer layer 4 and the blocking layer 9, and an n-side electrode 11 is arranged on the rear surface of the substrate 1. A diffraction grating 13 is arranged in the spacer layer 4 to select light having ten or more, preferably eighteen or more, oscillation vertical modes each having a differential value of 10 dB or less relative to the maximum light intensity of the oscillation vertical mode. COPYRIGHT: (C)2004,JPO
    • 解决的问题:为了获得防止产生感应布里渊散射的半导体激光器件。 解决方案:n-InP缓冲层2,GRIN-SCH-MQW有源层3和p-InP间隔层4层压在n-InP衬底1的表面上.P-InP阻挡层8 并且n-InP阻挡层9与缓冲层2,有源层3和间隔层4的上部区域相邻层叠.P-InP包覆层6,p-GaInAsP接触层7和p- 侧面电极10层压在隔离层4和阻挡层9上,并且n侧电极11设置在基板1的背面上。衍射光栅13布置在间隔层4中以选择具有十个 或更多,优选十八个或更多个振荡垂直模式,其相对于振荡垂直模式的最大光强度具有10dB或更小的差分值。 版权所有(C)2004,JPO