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    • 1. 发明专利
    • Semiconductor laser device
    • 半导体激光器件
    • JP2012147020A
    • 2012-08-02
    • JP2012085189
    • 2012-04-04
    • Sony CorpTohoku Univソニー株式会社国立大学法人東北大学
    • OKI TOMOYUKIWATANABE HIDEKIKODA RINTAROKURAMOTO MASARUYOKOYAMA HIROYUKI
    • H01S5/065H01S5/343
    • PROBLEM TO BE SOLVED: To provide a bi-section-type GaN-based semiconductor laser device with a configuration and a structure having a little occurrence of damage in a saturable absorption region.SOLUTION: A semiconductor laser device includes a stack of a second compound semiconductor layer and a third compound semiconductor layer constituting a light-emitting region and a saturable absorption region, and has a stacked structure having a ridge stripe structure, a second electrode, and a first electrode. The second electrode is isolated by an isolation trench into a first portion passing a DC current into the light-emitting region and a second portion for applying electric field to the saturable absorption region. On both sides of the ridge stripe structure, second compound semiconductor layer exposed regions are provided. 1
    • 解决的问题:提供具有在可饱和吸收区域中几乎没有损伤的结构和结构的双截面型GaN基半导体激光器件。 解决方案:半导体激光器件包括构成发光区域和可饱和吸收区域的第二化合物半导体层和第三化合物半导体层的堆叠,并且具有脊条结构的层叠结构,第二电极 ,和第一电极。 第二电极通过隔离沟槽隔离成通过DC电流进入发光区域的第一部分和用于向饱和吸收区域施加电场的第二部分。 在脊状条纹结构的两侧设置有第二化合物半导体层露出区域。 1 2 / L 1-ave ,其中L 1-ave < / SB>表示构成发光区域的第三化合物半导体层的一部分与第二化合物半导体层露出区域的顶面的平均距离,L 2 表示在第二电极和隔离沟槽的第二部分之间的边界处从第三化合物半导体层的部分到第二化合物半导体层暴露区域的顶表面的距离。 版权所有(C)2012,JPO&INPIT
    • 3. 发明专利
    • Mode-locked semiconductor laser element and driving method thereof
    • 模式锁定半导体激光元件及其驱动方法
    • JP2011187579A
    • 2011-09-22
    • JP2010049749
    • 2010-03-05
    • Sony CorpTohoku Univソニー株式会社国立大学法人東北大学
    • OKI TOMOYUKIKURAMOTO MASARUIKEDA MASAOMIYAJIMA TAKAOWATANABE HIDEKIYOKOYAMA HIROYUKI
    • H01S5/065
    • PROBLEM TO BE SOLVED: To provide a driving method of a mode-locked semiconductor laser element, having a structure for reducing the influence due to piezo polarization and spontaneous polarization. SOLUTION: The mode-locked semiconductor laser element includes a laminated structure, obtained by sequentially laminating a first compound semiconductor layer 30 formed of a GaN-based compound semiconductor, a third compound semiconductor layer 40 having a light emitting region 41 and a second compound semiconductor 50; a second electrode 62; and a first electrode 61. The laminated structure is formed on a compound semiconductor substrate 21 having polarity; the third compound semiconductor layer includes a quantum well structure having a well layer and a barrier layer; the thickness of the well layer is 1 to 10 nm and impurity doping concentration of the barrier layer is 2×10 18 through 1×10 20 cm -3 ; and in the driving method of the mode-locked semiconductor laser element, current is made to flow to the first electrode 61 from the second electrode 62 via the laminated structure, and thus an optical pulse can be generated in the light emitting region 41. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种具有减少由于压电极化和自发极化引起的影响的结构的锁模半导体激光元件的驱动方法。 解锁方案:锁模半导体激光元件包括层叠结构,其通过依次层叠由GaN基化合物半导体形成的第一化合物半导体层30,具有发光区域41的第三化合物半导体层40和 第二化合物半导体50; 第二电极62; 和第一电极61.层叠结构形成在具有极性的化合物半导体基板21上; 第三化合物半导体层包括具有阱层和阻挡层的量子阱结构; 阱层的厚度为1〜10nm,阻挡层的杂质掺杂浓度为2×10 18 20×SP> / SP>; 并且在锁模半导体激光元件的驱动方法中,电流通过层叠结构从第二电极62流向第一电极61,因此可以在发光区域41中产生光脉冲。 P>版权所有(C)2011,JPO&INPIT
    • 4. 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。
    • 6. 发明专利
    • Mode-lock semiconductor laser element and semiconductor laser device assembly
    • 模式半导体激光元件和半导体激光器件组件
    • JP2014078753A
    • 2014-05-01
    • JP2014000846
    • 2014-01-07
    • Sony Corpソニー株式会社Tohoku Univ国立大学法人東北大学
    • OKI TOMOYUKIKURAMOTO MASARUIKEDA MASAOMIYAJIMA TAKAOWATANABE HIDEKIYOKOYAMA HIROYUKI
    • H01S5/065H01S5/14H01S5/343
    • PROBLEM TO BE SOLVED: To provide a drive method of a mode-lock semiconductor laser element having a configuration capable of reducing influences of piezo polarization and spontaneous polarization.SOLUTION: The mode-lock semiconductor laser element has a laminate structure which includes: a first compound semiconductor layer 30 of a GaN compound semiconductor; a third compound semiconductor layer 40 having a light emitting region 41 and a saturable absorption region 42; and a second compound semiconductor layer 50 which are laminated in order; and a second electrode 62 and a first electrode 61. The second electrode 62 is separated into a first portion 62A and a second portion 62B by a separation groove 62C. When a current flows from a first portion of the second electrode to a first electrode via the light emitting region, the second electrode 62 gets into a forward bias state; and when a voltage is applied across the first electrode and the second portion of the second electrode, an electric field is applied to a saturable absorption region. Thus, the semiconductor laser element performs a single mode self-pulsation operation in the light emitting region.
    • 要解决的问题:提供具有能够减少压电极化和自发极化的影响的结构的锁模半导体激光元件的驱动方法。解锁:锁模半导体激光元件具有层叠结构,其包括:第一 GaN化合物半导体的化合物半导体层30; 具有发光区域41和可饱和吸收区域42的第三化合物半导体层40; 和第二化合物半导体层50; 第二电极62和第一电极61.第二电极62通过分离槽62C分离成第一部分62A和第二部分62B。 当电流从第二电极的第一部分经由发光区域流过第一电极时,第二电极62进入正向偏压状态; 并且当跨越第一电极和第二电极的第二部分施加电压时,电场被施加到可饱和吸收区域。 因此,半导体激光元件在发光区域中进行单模式自脉动操作。
    • 10. 发明专利
    • Semiconductor laser, bio-imaging system, microscope, optical disk device, optical pickup, processing machine, and endoscope
    • 半导体激光,生物成像系统,微型光学器件,光盘设备,光学拾取器,加工机器和内窥镜
    • JP2009049310A
    • 2009-03-05
    • JP2007216152
    • 2007-08-22
    • Sony CorpTohoku Univソニー株式会社国立大学法人東北大学
    • KURAMOTO MASARUYOKOYAMA HIROYUKI
    • H01S5/343
    • PROBLEM TO BE SOLVED: To provide a semiconductor laser capable of easily obtaining a compact, high-power ultrashort pulsed light source at low cost.
      SOLUTION: A semiconductor laser comprises one laser chip 51 that has at least one laser stripe 52 between a first end face 51a and a second end face 51b opposing to each other. The laser chip 51 has a mode-locked laser section 54 on the first end face 51a side, and a semiconductor light amplifier section 55, which amplifies light emitted by the mode-locked laser section 54, on the second end face 51b side. The angle which the normal to the first end face 51a forms with the laser stripe 52 in the mode-locked laser section 54 is not less than 0° and not more then 1°; and the angle which the normal forms with the laser stripe 52 in the semiconductor light amplifier section 55 is more than 1° and less than 90°.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供能够以低成本容易地获得紧凑的大功率超短脉冲光源的半导体激光器。 解决方案:半导体激光器包括在第一端面51a和彼此相对的第二端面51b之间具有至少一个激光条52的一个激光芯片51。 激光芯片51在第一端面51a侧具有锁模激光部54,在第二端面51b侧具有放大由锁模激光部54发出的光的半导体光放大部55。 锁模激光部54中的第一端面51a的法线与激光条52形成的角度不小于0°且不大于1°; 并且与半导体光放大部55中的激光条52形成的法线的角度大于1°且小于90°。 版权所有(C)2009,JPO&INPIT