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公开(公告)号：US20100111126A1
公开(公告)日：2010-05-06
申请号：US12608346
申请日：2009-10-29
IPC分类号： H01S5/00
CPC分类号： H01S5/18 , H01S5/028 , H01S5/162 , H01S5/20 , H01S5/3211 , H01S2301/173 , H01S2301/176
摘要： In a horizontal-cavity vertical-emitting semiconductor laser including an Al-containing semiconductor layer, deterioration of light output property due to oxidization of the Al-containing semiconductor layer is suppressed. A lower cladding layer, an active layer, and an upper cladding layer are stacked in this order from the lower layer on a main surface of a substrate made of GaAs. The upper cladding layer is made of AlGaAs or AlGaInP containing Al in high concentration. An emitting plane layer combining a function of preventing the oxidization of Al contained in the upper cladding layer is formed on an upper portion of the upper cladding layer, and an electric contact layer is formed on an upper portion of the emitting plane layer. The emitting plane layer is made of InGaP, and the electric contact layer is made of GaAs.
摘要翻译： 在包含含Al半导体层的水平腔垂直发射半导体激光器中，抑制了由于含Al半导体层的氧化引起的光输出特性的劣化。 从GaAs的衬底的主表面上的下层依次堆叠下包层，有源层和上覆层。 上覆层由含有高浓度Al的AlGaAs或AlGaInP构成。 在上部包层的上部形成有结合防止上部包层中的Al的氧化的功能的发光面层，在发光面层的上部形成有电接触层。 发光平面层由InGaP制成，电接触层由GaAs制成。
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公开(公告)号：US07199441B2
公开(公告)日：2007-04-03
申请号：US10915534
申请日：2004-08-11
申请人： Junichiro Shimizu , Shigeki Makino , Masahiro Aoki
发明人： Junichiro Shimizu , Shigeki Makino , Masahiro Aoki
IPC分类号： H01L27/14
CPC分类号： H01S5/227 , G02B6/132 , H01S5/0208 , H01S5/02284 , H01S5/026 , H01S5/0265 , H01S5/0421 , H01S5/0425 , H01S5/12 , H01S5/2081 , H01S5/2205
摘要： An optical integrated circuit having optical devices is fabricated. These optical devices must be biased in the mutually opposite directions. If such an optical integrated circuit is fabricated using a conductive semiconductor substrate as conventionally, it is not possible to drive the devices by a single power supply since the substrate side is shared as a common polarity by the devices. The present invention realizes a structure where both anode and cathode of each device can be isolated electrically by conventional process technology and provides an optical integrated circuit which can be driven by a single power supply.An optical integrated circuit is formed on a semi-insulative or insulative substrate. A high resistivity region which extends at least from the active layer to the substrate and includes part of an optical waveguide between the devices is formed so as to electrically isolate the anode and cathode of each integrated device from the other device.
摘要翻译： 制造具有光学器件的光学集成电路。 这些光学器件必须在相互相反的方向上偏置。 如果这样的光学集成电路使用传统的导电半导体衬底制造，则不可能通过单个电源驱动器件，因为衬底侧通过器件被共享为公共极性。 本发明实现了一种结构，其中每个器件的阳极和阴极都可以通过常规工艺技术电隔离，并提供可由单个电源驱动的光学集成电路。
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公开(公告)号：US08547804B2
公开(公告)日：2013-10-01
申请号：US13216901
申请日：2011-08-24
申请人： Junichiro Shimizu
发明人： Junichiro Shimizu
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： In a magnetic recording head including an optical waveguide for guiding a laser beam to a surface of a magnetic recording medium, a shield is provided in the vicinity of at least one portion changing discontinuously in structure of the optical waveguide to absorb or reflect non-propagating light leaking from the discontinuous portion to the outside of the optical waveguide.
摘要翻译： 在包括用于将激光束引导到磁记录介质的表面的光波导的磁记录头中，在光波导的结构中在不连续变化的至少一个部分附近设置屏蔽，以吸收或反射不传播 光从光波导的不连续部分泄漏到外部。
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14.发明授权公开(公告)号：US08406093B2
公开(公告)日：2013-03-26
申请号：US12903276
申请日：2010-10-13
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： Provided is a thermal-assisted-magnetic-recording head capable of directing, to a magnetic recording medium, light in which the spot size is reduced to submicron order with high total optical propagation efficiency. A light coupling unit that guides light emitted from the light source into a magnetic head and a high-refractive-index core that couples with the light guided by the light coupling unit to lead the light to an air bearing surface are arranged in the magnetic head. The light coupling unit includes a plurality of thin-film-like cores that are separated from each other by a clad material. An upper part of the high-refractive-index core is placed between two thin-film-like cores.
摘要翻译： 提供了一种热辅助磁记录头，其能够将光斑尺寸减小到亚微米级的高的总光传播效率的光记录介质。 将从光源发射的光引导到磁头中的光耦合单元和与由光耦合单元引导的光耦合以将光引导到空气轴承表面的高折射率芯布置在磁头中 。 光耦合单元包括通过包层材料彼此分离的多个薄膜状芯。 高折射率芯的上部放置在两个薄膜状芯之间。
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公开(公告)号：US20080056073A1
公开(公告)日：2008-03-06
申请号：US11778189
申请日：2007-07-16
申请人： Junichiro Shimizu
发明人： Junichiro Shimizu
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/105 , G11B7/124 , G11B7/1387 , G11B2005/0021
摘要： It is an objective that the optical loss and the number of optical components are reduced in an optical recording head using a near-field where a laser beam is guided from a light source to the tip of the head and a thermally assisted magnetic recording head. A structure where the traveling direction of emitted beam is rotated in the direction of the cavity of the laser diode element and a reflector for guiding the beam to the surface of the surface of the laser diode element is monolithically integrated in the laser diode element is mounted over the slider so that the direction of the cavity of the laser diode element is parallel to the surface of the recording medium, and the substrate side of the laser diode element is mounted to be in the direction opposite the face adjacent to the upper face of the slider.
摘要翻译： 目的是使用激光束从光源引导到头部的尖端的近场和热辅助磁记录头，在光学记录头中光学损耗和光学部件的数量减少。 发射光束的行进方向沿着激光二极管元件的腔的方向旋转的结构和用于将光束引导到激光二极管元件的表面的反射器被整体地集成在激光二极管元件中 使得激光二极管元件的腔的方向平行于记录介质的表面，并且激光二极管元件的衬底侧被安装成与靠近上表面的面相反的方向 滑块。
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公开(公告)号：US20050275053A1
公开(公告)日：2005-12-15
申请号：US10915534
申请日：2004-08-11
申请人： Junichiro Shimizu , Shigeki Makino , Masahiro Aoki
发明人： Junichiro Shimizu , Shigeki Makino , Masahiro Aoki
IPC分类号： H01S5/042 , G02B6/132 , H01L31/00 , H01S5/02 , H01S5/026 , H01S5/12 , H01S5/20 , H01S5/22 , H01S5/227 , H01L33/00
CPC分类号： H01S5/227 , G02B6/132 , H01S5/0208 , H01S5/02284 , H01S5/026 , H01S5/0265 , H01S5/0421 , H01S5/0425 , H01S5/12 , H01S5/2081 , H01S5/2205
摘要： An optical integrated circuit having optical devices is fabricated. These optical devices must be biased in the mutually opposite directions. If such an optical integrated circuit is fabricated using a conductive semiconductor substrate as conventionally, it is not possible to drive the devices by a single power supply since the substrate side is shared as a common polarity by the devices. The present invention realizes a structure where both anode and cathode of each device can be isolated electrically by conventional process technology and provides an optical integrated circuit which can be driven by a single power supply. An optical integrated circuit is formed on a semi-insulative or insulative substrate. A high resistivity region which extends at least from the active layer to the substrate and includes part of an optical waveguide between the devices is formed so as to electrically isolate the anode and cathode of each integrated device from the other device.
摘要翻译： 制造具有光学器件的光学集成电路。 这些光学器件必须在相互相反的方向上偏置。 如果这样的光学集成电路使用传统的导电半导体衬底制造，则不可能通过单个电源驱动器件，因为衬底侧通过器件被共享为公共极性。 本发明实现了一种结构，其中每个器件的阳极和阴极都可以通过常规工艺技术电隔离，并提供可由单个电源驱动的光学集成电路。 在半绝缘或绝缘衬底上形成光学集成电路。 形成至少从有源层延伸到衬底并且包括器件之间的光波导的一部分的高电阻率区域，以将每个集成器件的阳极和阴极与另一个器件电隔离。
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17.发明授权公开(公告)号：US08054571B2
公开(公告)日：2011-11-08
申请号：US12912258
申请日：2010-10-26
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/105 , G11B5/6088 , G11B2005/0021
摘要： A thermally assisted magnetic recording head includes a flying slider, a magnetic field generation device mounted on the flying slider, a first waveguide disposed near the magnetic field generation device for guiding incident light from a top surface of the flying slider on a side of the flying slider toward an air bearing bottom surface of the flying slider, an optical near-field generator disposed at an emission end of the first waveguide, a second waveguide which is separate from the first waveguide and which is spaced from and coupled to the first waveguide at a distance of no greater than a light wavelength, and a first optical detector for detecting the intensity of light propagating in the second waveguide. The first waveguide and the second waveguide are disposed so as to extend in a direction substantially perpendicular to the air bearing bottom surface of the flying slider.
摘要翻译： 热辅助磁记录头包括飞行滑块，安装在飞行滑块上的磁场产生装置，设置在磁场产生装置附近的第一波导，用于引导来自飞行滑块的顶表面的入射光在飞行侧 滑块朝向飞行滑块的空气轴承底面，设置在第一波导的发射端处的光学近场发生器，与第一波导分开并且与第一波导分开并耦合到第一波导的第二波导 不大于光波长的距离;以及第一光检测器，用于检测在第二波导中传播的光的强度。 第一波导和第二波导被设置成在与飞行滑块的空气轴承底面基本垂直的方向上延伸。
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18.发明授权公开(公告)号：US07898759B2
公开(公告)日：2011-03-01
申请号：US12015528
申请日：2008-01-17
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/105 , G11B5/6088 , G11B2005/0021
摘要： A second waveguide is formed near a first waveguide for guiding light to the vicinity of a main pole of a thermally assisted magnetic recording head, and a portion of light propagated through the waveguide 1 is branched to the second waveguide. The light transmitting in the second waveguide is detected by a photodetector to detect an intensity of the light propagated through the first waveguide. In the magnetic recording apparatus, an intensity of a semiconductor laser is decreased when an amount of light incident to the photodetector is large and the intensity of the semiconductor laser is increased when the amount of light incident to the photodetector is small. By constituting a feedback loop as described above, the intensity of the light propagated through the first waveguide is kept constant.
摘要翻译： 第二波导形成在第一波导附近，用于将光引导到热辅助磁记录头的主极附近，并且通过波导1传播的光的一部分被分支到第二波导。 通过光电检测器检测在第二波导中发射的光以检测通过第一波导传播的光的强度。 在磁记录装置中，当入射到光电检测器的光量大时，半导体激光器的强度在入射到光电检测器的光量小时，半导体激光器的强度降低。 通过构成如上所述的反馈回路，通过第一波导传播的光的强度保持恒定。
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19.发明申请公开(公告)号：US20080204916A1
公开(公告)日：2008-08-28
申请号：US12015528
申请日：2008-01-17
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/105 , G11B5/6088 , G11B2005/0021
摘要： A second waveguide is formed near a first waveguide for guiding light to the vicinity of a main pole of a thermally assisted magnetic recording head, and a portion of light propagated through the waveguide 1 is branched to the second waveguide. The light transmitting in the second waveguide is detected by a photodetector to detect an intensity of the light propagated through the first waveguide. In the magnetic recording apparatus, an intensity of a semiconductor laser is decreased when an amount of light incident to the photodetector is large and the intensity of the semiconductor laser is increased when the amount of light incident to the photodetector is small. By constituting a feedback loop as described above, the intensity of the light propagated through the first waveguide is kept constant.
摘要翻译： 第二波导形成在第一波导附近，用于将光引导到热辅助磁记录头的主极附近，并且通过波导1传播的光的一部分被分支到第二波导。 通过光电检测器检测在第二波导中发射的光以检测通过第一波导传播的光的强度。 在磁记录装置中，当入射到光电检测器的光量大时，半导体激光器的强度在入射到光电检测器的光量小时，半导体激光器的强度降低。 通过构成如上所述的反馈回路，通过第一波导传播的光的强度保持恒定。
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公开(公告)号：US06826212B2
公开(公告)日：2004-11-30
申请号：US09942718
申请日：2001-08-31
申请人： Masataka Shirai , Junichiro Shimizu , Shinji Tsuji
发明人： Masataka Shirai , Junichiro Shimizu , Shinji Tsuji
IPC分类号： H01S304
CPC分类号： B82Y20/00 , H01S5/0085 , H01S5/02216 , H01S5/02248 , H01S5/02284 , H01S5/02415 , H01S5/0612 , H01S5/32366 , H01S5/34366 , H01S5/4012 , H01S5/4087
摘要： A module for optical communication intended for decreasing the consumption power of a modulator integrated laser, in which a, multiple-quantum well constituting a laser active layer region comprises InGaAlAs/InGaNAs to keep the reliability and optical power level even when a chip is kept at a high temperature, and the difference of wavelength between the oscillation wavelength and the band gap wavelength of the modulator and the laser should be made greater in proportion with the elevation of the chip setting temperature for maintaining the transmission performance, by which the temperature difference between the module case temperature and the chip setting temperature is reduced to decrease the module consumption power.
摘要翻译： 用于降低调制器集成激光器的消耗功率的光通信模块，其中构成激光有源层区域的多量子阱包括InGaAlAs / InGaNA，以便即使当芯片保持在芯片时也保持可靠性和光功率水平 应使调制器和激光器的振荡波长与带隙波长之间的波长差成比例地与芯片设定温度的升高成比例，以保持传输性能，由此， 模块外壳温度和芯片设置温度降低，降低模块消耗功率。
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