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    • 52. 发明专利
    • Semiconductor laser element
    • 半导体激光元件
    • JP2010109139A
    • 2010-05-13
    • JP2008279475
    • 2008-10-30
    • Hitachi Ltd株式会社日立製作所
    • SHIMIZU JUNICHIRONOMOTO ETSUKONAKATSUKA SHINICHIOTOSHI SOTANIGUCHI TAKAFUMI
    • H01S5/323
    • H01S5/18H01S5/028H01S5/162H01S5/20H01S5/3211H01S2301/173H01S2301/176
    • PROBLEM TO BE SOLVED: To suppress the degradation of light output characteristics due to oxidation of an Al containing semiconductor layer in a vertical emission type semiconductor laser element with a horizontal resonator including the Al containing semiconductor layer.
      SOLUTION: A lower clad layer 102, an active layer 103 and an upper clad layer 104 are stacked in order from the lowest layer on a principal surface of a substrate 101 made of GaAs. The upper clad layer 104 is made of AlGaAs or AlGaInP containing a high concentration of Al. An emission surface layer 105 provided with a function of preventing oxidation of Al contained in the upper clad layer 104 is formed on the upper clad layer 104, and an electrode contact layer 106 is formed on the emission surface layer 105. The emission surface layer 105 is made of InGaP, and the electrode contact layer 106 is made of GaAs.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:为了抑制具有包含含Al半导体层的水平共振器的垂直发射型半导体激光元件中含Al半导体层的氧化引起的光输出特性的劣化。 解决方案:从由GaAs制成的衬底101的主表面上的最下层依次堆叠下包层102,有源层103和上覆层104。 上覆盖层104由含有高浓度Al的AlGaAs或AlGaInP制成。 在上覆盖层104上形成具有防止上覆盖层104中包含的Al的氧化功能的发射面层105,在发光面层105上形成电极接触层106.发光面层105 由InGaP制成,电极接触层106由GaAs制成。 版权所有(C)2010,JPO&INPIT
    • 57. 发明专利
    • Nitride semiconductor laser element, and manufacturing method therefor
    • 氮化物半导体激光元件及其制造方法
    • JP2007227894A
    • 2007-09-06
    • JP2006353718
    • 2006-12-28
    • Nichia Chem Ind Ltd日亜化学工業株式会社
    • MORIZUMI TOMONORIMICHIGAMI ATSUOTANISAKA SHINGO
    • H01S5/223
    • H01S5/34333B82Y20/00H01S5/162H01S5/2009H01S5/22H01S5/3063H01S5/3216
    • PROBLEM TO BE SOLVED: To provide a nitride semiconductor laser element capable of preventing heating due to resistance in the vicinity of end faces, improving the characteristic and life of the end faces, and lengthening the life of the element itself by suppressing the injection of current into the vicinity of the end faces of a resonator in a nitride semiconductor layer with relatively high resistance; and to provide a manufacturing method therefor.
      SOLUTION: The nitride semiconductor laser element comprises: a nitride semiconductor layer having a first nitride semiconductor layer, an active layer, and a second nitride semiconductor layer, which are laminated in this order; and resonator end faces that are formed on the nitride semiconductor layer to face each other. At least a light output region on the resonator end faces contains an impurity, and the light output region has a band gap wider than other regions in the active layer or has an impurity density higher than that of other regions in the active layer.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种氮化物半导体激光元件,其能够防止由于端面附近的电阻而产生的加热,从而提高端面的特性和寿命,并且通过抑制端面延长元件本身的寿命 在具有较高电阻的氮化物半导体层中的谐振器的端面附近注入电流; 并提供其制造方法。 解决方案:氮化物半导体激光元件包括:具有第一氮化物半导体层,有源层和第二氮化物半导体层的氮化物半导体层,其按顺序层叠; 以及形成在氮化物半导体层上以彼此面对的谐振器端面。 谐振器端面上的至少一个光输出区域含有杂质,并且光输出区域具有比有源层中的其它区域宽的带隙或具有比有源层中的其它区域的杂质密度更高的杂质密度。 版权所有(C)2007,JPO&INPIT
    • 59. 发明专利
    • Multiple wavelength semiconductor laser device
    • 多波长半导体激光器件
    • JP2007088188A
    • 2007-04-05
    • JP2005274827
    • 2005-09-22
    • Matsushita Electric Ind Co Ltd松下電器産業株式会社
    • TAKAYAMA TORUKIDOGUCHI ISAOKAJIMA TAKAYUKI
    • H01S5/22H01S5/16H01S5/343
    • H01S5/40H01S5/162H01S5/22H01S5/4087
    • PROBLEM TO BE SOLVED: To provide a multiple wavelength semiconductor laser device capable of facilitating the design of optical system by having a window structure in which the capacity of FFP in the laser beams of respective wavelengths is stabilized, and becomes a requested FFP pattern with respect to the multiple wavelength semiconductor laser device formed on the same substrate. SOLUTION: Every semiconductor laser of respective wavelengths is provided with the window region having different lengths capable of obtaining the optimum FFP with respect to the outgoing lights of respective wavelengths, whereby the same degree of optical output depending property can be given to respective wavelengths and, therefore, the designing of the optical system can be facilitated. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种能够通过具有其中各个波长的激光束中的FFP的容量稳定的窗口结构来促进光学系统的设计的多波长半导体激光器件,并且成为所要求的FFP 相对于形成在同一基板上的多波长半导体激光器件的图案。 解决方案:各个波长的每个半导体激光器设置有具有不同长度的窗口区域,其能够相对于各个波长的出射光获得最佳FFP,由此可以将相同程度的光输出相关性质给予相应的 波长,因此可以方便地进行光学系统的设计。 版权所有(C)2007,JPO&INPIT