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    • 1. 发明专利
    • Semiconductor laser element, driving method thereof, and semiconductor laser device
    • 半导体激光元件及其驱动方法及半导体激光器件
    • JP2011018784A
    • 2011-01-27
    • JP2009162617
    • 2009-07-09
    • Sony CorpTohoku Univソニー株式会社国立大学法人東北大学
    • KURAMOTO MASARUOKI TOMOYUKISUGAWARA TOMOYAYOKOYAMA HIROYUKI
    • H01S5/343
    • H01S5/06216B82Y20/00H01S5/0602H01S5/06253H01S5/2009H01S5/34333
    • PROBLEM TO BE SOLVED: To provide a semiconductor laser element of ultra short pulse and ultra high output, capable of emitting the pulse laser beam having higher peak power notwithstanding simple configuration and structure.SOLUTION: The semiconductor laser element includes (A) a laminated structure including a first compound semiconductor layer 30 containing n-type impurity, an active layer 40 having a quantum well structure, and a second compound semiconductor layer 50 containing p-type impurity, (B) a first electrode 61 connected electrically to the first compound semiconductor layer 30, and (C) a second electrode 62 connected electrically to the second compound semiconductor layer 50. The second compound semiconductor layer 50 is provided with an electron barrier layer 53 whose thickness is 1.5×10m or greater. The semiconductor laser element is driven by the pulse current having a value ten times or more of threshold current.
    • 要解决的问题:为了提供超短脉冲和超高输出的半导体激光元件,能够发射具有较高峰值功率的脉冲激光束,尽管结构简单和结构简单。解决方案:半导体激光元件包括(A)层压结构 包括含有n型杂质的第一化合物半导体层30,具有量子阱结构的有源层40和含有p型杂质的第二化合物半导体层50,(B)与第一化合物半导体电连接的第一电极61 层30,以及(C)与第二化合物半导体层50电连接的第二电极62.第二化合物半导体层50设置有厚度为1.5×10μm以上的电子势垒层53。 半导体激光元件由阈值电流的十倍以上的脉冲电流驱动。
    • 10. 发明专利
    • Semiconductor optical amplifier
    • 半导体光放大器
    • JP2012015266A
    • 2012-01-19
    • JP2010149345
    • 2010-06-30
    • Sony CorpTohoku Univソニー株式会社国立大学法人東北大学
    • KURAMOTO MASARUIKEDA MASAOKODA RINTAROOKI TOMOYUKIWATANABE HIDEKIMIYAJIMA TAKAOYOKOYAMA HIROYUKI
    • H01S5/50H01S5/343
    • H01S5/1064H01S5/0425H01S5/0602H01S5/0657H01S5/16H01S5/22H01S5/32341H01S5/34333H01S5/50
    • PROBLEM TO BE SOLVED: To provide a semiconductor optical amplifier composed of a GaN-based compound semiconductor capable of achieving increased light output.SOLUTION: A semiconductor optical amplifier 200 comprises: (a) a laminate structure in which a first compound semiconductor layer composed of a GaN-based compound semiconductor, a third compound semiconductor layer, and a second compound semiconductor layer are sequentially stacked; (b) a second electrode 262 formed on the second compound semiconductor layer; and (c) a first electrode electrically connected to the first compound semiconductor layer. The laminate structure has a ridge stripe structure. When the width of the ridge stripe structure at a light-emitting end surface 203 is Wand the width of the ridge stripe structure at a light incident end surface 201 is W, W>Wis satisfied. In an inner region of the laminate structure from the light-emitting end surface 203 along an axial line AXof the semiconductor optical amplifier, a carrier non-injection region 205 is provided.
    • 解决的问题:提供一种由能够实现增加的光输出的GaN基化合物半导体组成的半导体光放大器。 解决方案:半导体光放大器200包括:(a)层叠结构,其中由GaN基化合物半导体,第三化合物半导体层和第二化合物半导体层构成的第一化合物半导体层依次层叠; (b)形成在第二化合物半导体层上的第二电极262; 和(c)与第一化合物半导体层电连接的第一电极。 层叠结构具有脊形条纹结构。 当发光端面203处的棱条结构的宽度为W 时,光入射端面201处的脊条结构的宽度为W 中的POS =“POST”>,满足 中的输出。 在从半导体光放大器的轴线AX 1 的发光端面203的层叠结构的内部区域中,设置载流子非注入区域205。 版权所有(C)2012,JPO&INPIT