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1.发明申请公开(公告)号：US20110090770A1
公开(公告)日：2011-04-21
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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2.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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3.发明申请公开(公告)号：US20110038235A1
公开(公告)日：2011-02-17
申请号：US12912258
申请日：2010-10-26
IPC分类号： G11B11/00
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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公开(公告)号：US20120320719A1
公开(公告)日：2012-12-20
申请号：US13143739
申请日：2009-11-30
CPC分类号： G11B5/314 , G11B5/4833 , G11B5/4866 , G11B2005/0021
摘要： A slider including a magnetic head part, an optical waveguide, and a near field element is fixed by first and second adhesives to a submount on which a semiconductor laser and a mirror are mounted, the mirror being placed at one end of the semiconductor laser in a resonance direction thereof and reflecting a laser in a direction intersecting with the resonance direction. At this time, at least parts of the first and second adhesives are applied to a position opposed to the semiconductor laser with an intermediation of the submount. The first adhesive having a higher Young's modulus than that of the second adhesive is applied onto an inflow end side of the slider including a solder connection portion, the second adhesive being applied onto an outflow end side of the slider.
摘要翻译： 包括磁头部分，光波导和近场元件的滑块通过第一和第二粘合剂固定到其上安装有半导体激光器和反射镜的基座，反射镜被放置在半导体激光器的一端 其谐振方向并且在与谐振方向相交的方向上反射激光。 此时，第一和第二粘合剂的至少一部分通过底座被施加到与半导体激光器相对的位置。 将具有比第二粘合剂高的杨氏模量的第一粘合剂施加到包括焊料连接部分的滑块的流入端侧，将第二粘合剂施加到滑块的流出端侧。
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公开(公告)号：US08477570B2
公开(公告)日：2013-07-02
申请号：US13143739
申请日：2009-11-30
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/4833 , G11B5/4866 , G11B2005/0021
摘要： A slider including a magnetic head part, an optical waveguide, and a near field element is fixed by first and second adhesives to a submount on which a semiconductor laser and a mirror are mounted, the mirror being placed at one end of the semiconductor laser in a resonance direction thereof and reflecting a laser in a direction intersecting with the resonance direction. At this time, at least parts of the first and second adhesives are applied to a position opposed to the semiconductor laser with an intermediation of the submount. The first adhesive having a higher Young's modulus than that of the second adhesive is applied onto an inflow end side of the slider including a solder connection portion, the second adhesive being applied onto an outflow end side of the slider.
摘要翻译： 包括磁头部分，光波导和近场元件的滑块通过第一和第二粘合剂固定到其上安装有半导体激光器和反射镜的基座，反射镜被放置在半导体激光器的一端 其谐振方向并且在与谐振方向相交的方向上反射激光。 此时，第一和第二粘合剂的至少一部分通过底座被施加到与半导体激光器相对的位置。 将具有比第二粘合剂高的杨氏模量的第一粘合剂施加到包括焊料连接部分的滑块的流入端侧，将第二粘合剂施加到滑块的流出端侧。
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公开(公告)号：US08270262B2
公开(公告)日：2012-09-18
申请号：US12995253
申请日：2009-06-01
IPC分类号： G11B7/085
CPC分类号： G11B5/314 , G11B5/4826 , G11B5/4853 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： In a thermally assisted magnetic recording head (10A), a sub-mount (8A) on which a laser diode is mounted is arranged between an HGA (41) and a magnetic head slider (9). The sub-mount has a wiring line (81) which electrically connects a terminal (91) arranged on the magnetic head slider (9) and a terminal (411) arranged on the HGA (41).
摘要翻译： 在热辅助磁记录头（10A）中，在HGA（41）和磁头滑块（9）之间布置有安装有激光二极管的子安装件（8A）。 副安装座具有将布置在磁头滑块（9）上的端子（91）和布置在HGA（41）上的端子（411）电连接的布线（81）。
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7.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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公开(公告)号：US20110149698A1
公开(公告)日：2011-06-23
申请号：US12995253
申请日：2009-06-01
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/4826 , G11B5/4853 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： In a thermally assisted magnetic recording head (10A), a sub-mount (8A) on which a laser diode is mounted is arranged between an HGA (41) and a magnetic head slider (9). The sub-mount has a wiring line (81) which electrically connects a terminal (91) arranged on the magnetic head slider (9) and a terminal (411) arranged on the HGA (41).
摘要翻译： 在热辅助磁记录头（10A）中，在HGA（41）和磁头滑块（9）之间布置有安装有激光二极管的子安装件（8A）。 副安装座具有将布置在磁头滑块（9）上的端子（91）和布置在HGA（41）上的端子（411）电连接的布线（81）。
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9.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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10.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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