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1. 发明授权

US09495984B2 Waveguide with reflective grating for localized energy intensity 有权
公开(公告)号：US09495984B2
公开(公告)日：2016-11-15
申请号：US14886870
申请日：2015-10-19
申请人： Western Digital (Fremont), LLC
发明人： Hongxing Yuan , Jinshan Li , Zhong Shi
IPC分类号： G11B5/48 , G11B7/1384 , G11B5/60 , G11B7/12 , G02B6/122 , G02B6/34 , G11B5/00
CPC分类号： G11B5/4866 , G02B6/00 , G02B6/122 , G02B6/34 , G11B5/6088 , G11B7/1206 , G11B7/124 , G11B7/1384 , G11B2005/0021
摘要： An apparatus includes a waveguide with first and second sections, and a junction coupling the first and second waveguide sections together. The first waveguide section has a first reflective device and the second section comprising a second reflective device arranged to generate a standing wave in the waveguide with maximum energy wave intensity at a target region of the waveguide in response to an incident energy wave being provided into at least one of the waveguide sections.

2. 发明授权

US09286920B1 Method for compensating for phase variations in an interferometric tapered waveguide in a heat assisted magnetic recording head 有权
标题翻译：用于补偿热辅助磁记录头中的干涉式锥形波导中的相位变化的方法
公开(公告)号：US09286920B1
公开(公告)日：2016-03-15
申请号：US13756379
申请日：2013-01-31
申请人： Western Digital (Fremont), LLC
发明人： Yufeng Hu , Ut Tran
IPC分类号： G11B7/00 , G11B5/00 , G11B5/31 , G11B7/1384 , G11B7/22
CPC分类号： G11B5/3163 , G02B6/1228 , G02B6/125 , G11B5/314 , G11B5/6088 , G11B7/1384 , G11B2005/0021
摘要： A method fabricates an interferometric tapered waveguide (ITWG) for a heat-assisted magnetic recording (HAMR) transducer. The ITWG is defined from at least one waveguide layer. The waveguide layer(s) include an energy sensitive core layer. The energy sensitive core layer has an index of refraction that varies in response to exposure to energy having a particular wavelength range. The step of defining the ITWG includes defining a plurality of arms for the ITWG. At least one phase difference between the arms is determined. At least one of the arms is exposed to the energy such that the index of refraction of the energy sensitive core layer in the arm(s) is changed and such that the phase difference(s) between the arms is changed.
摘要翻译：一种制造用于热辅助磁记录（HAMR）传感器的干涉式锥形波导（ITWG）的方法。 ITWG由至少一个波导层限定。波导层包括能量敏感芯层。能量敏感芯层具有响应于具有特定波长范围的能量的曝光而变化的折射率。定义ITWG的步骤包括为ITWG定义多个臂。确定臂之间的至少一个相位差。臂中的至少一个暴露于能量，使得臂中的能量敏感芯层的折射率改变，并且使臂之间的相位差发生变化。

3. 发明授权

US09245553B2 Submount-integrated photodetector for monitoring a laser for a heat-assisted magnetic recording head 有权
标题翻译：用于监测用于热辅助磁记录头的激光器的底座集成光电检测器
公开(公告)号：US09245553B2
公开(公告)日：2016-01-26
申请号：US14089589
申请日：2013-11-25
申请人： HGST Netherlands B.V.
发明人： Thomas Dudley Boone, Jr. , Takuya Matsumoto , Shen Ren
IPC分类号： G11B11/00 , G11B5/48 , G11B5/31 , G11B5/00 , G11B7/1384
CPC分类号： G11B5/4866 , G11B5/105 , G11B5/314 , G11B5/455 , G11B5/6088 , G11B7/1384 , G11B2005/001 , G11B2005/0021
摘要： In a heat-assisted magnetic recording hard disk drive, a laser module includes a submount-integrated photodetector configured to receive optical energy from a laser by way of a head slider. The submount may be formed of a semiconductor material such as a crystalline silicon material, and the photodetector may be a photodiode that is integrally formed with the submount. A HAMR head slider may comprise a feedback waveguide configured to guide optical energy from the laser through the slider to a feedback photodiode at an interface of the submount and the slider, to detect the optical energy transmitted through the slider to the slider air bearing surface (ABS). A back facet photodiode may also be integrally formed with the submount and configured to receive back facet optical energy to detect the optical energy generated by the laser.
摘要翻译：在热辅助磁记录硬盘驱动器中，激光模块包括配置成通过磁头滑块从激光器接收光能的基座集成光电检测器。基座可以由诸如晶体硅材料的半导体材料形成，并且光电检测器可以是与底座一体形成的光电二极管。 HAMR磁头滑动器可以包括反馈波导，其被配置为将来自激光器的光能通过滑块引导到在底座和滑块的界面处的反馈光电二极管，以检测通过滑块传递到滑动器空气轴承表面的光能（ ABS）。背面光电二极管也可以与底座一体地形成，并且被配置为接收背面光能以检测由激光产生的光能。

4. 发明申请

US20150340053A1 HEAT ASSISTED MEDIA RECORDING APPARATUS WITH LASER DIODE MODE HOPPING SUPPRESSION 审中-公开
标题翻译：具有激光二极管模式抑制的热辅助介质记录装置
公开(公告)号：US20150340053A1
公开(公告)日：2015-11-26
申请号：US14691226
申请日：2015-04-20
申请人： Seagate Technology LLC
发明人： Chubing Peng , Xiaoyue Huang
IPC分类号： G11B5/60
CPC分类号： G11B5/6088 , G11B5/314 , G11B5/4866 , G11B7/1384 , G11B13/08 , G11B2005/001 , G11B2005/0021
摘要： An apparatus includes a slider body, a laser diode, an optical path, and a heating element. The laser diode is configured to produce energy and is subject to temperature changes as a result of producing energy. The optical path within the slider body is configured to deliver the energy to heat a magnetic recording medium. The heating element is disposed along a length of the optical path within the slider body and is configured to control a temperature of the optical path to mitigate temperature-induced mode hopping of the laser diode.
摘要翻译：一种装置包括滑动体，激光二极管，光路和加热元件。激光二极管被配置为产生能量并且由于产生能量而经受温度变化。滑块体内的光路构造成传递能量以加热磁记录介质。加热元件沿滑动体内的光路的长度设置，并且被配置为控制光路的温度以减轻激光二极管的温度感应模式跳变。

5. 发明申请

US20100208557A1 Optical Head and Optical Recording Device 审中-公开
标题翻译：光头和光记录装置
公开(公告)号：US20100208557A1
公开(公告)日：2010-08-19
申请号：US12738962
申请日：2008-10-09
申请人： Manami Kuiseko , Naoki Nishida , Kenji Konno , Koujirou Sekine
发明人： Manami Kuiseko , Naoki Nishida , Kenji Konno , Koujirou Sekine
IPC分类号： G11B7/00 , G11B7/135 , G11B11/00
CPC分类号： G11B5/02 , G11B5/314 , G11B5/4866 , G11B5/6088 , G11B7/08576 , G11B7/1359 , G11B7/1384 , G11B2005/0005 , G11B2005/0021
摘要： An optical head includes: a slider which moves relative to a recording medium while the slider is floating above the recording medium; an optical waveguide which is provided on a side surface of an end portion of the slider and which has the focusing function of forming a light spot on the recording medium; and a light guide optical system that guides a light pencil to the optical waveguide. A light pencil coupling portion which receives the light pencil from the light guide optical system is provided in a surface parallel to a direction in which the light pencil is guided by the optical waveguide; and a reflective surface which deflects the light pencil to the light pencil coupling portion is provided in the light guide optical system. The light pencil coupling portion has the function of correcting aberration resulting from oblique incidence of the light pencil obliquely incident from the light guide optical system. A medium member which has a refractive index of more than one is provided between the reflective surface and the light pencil coupling portion.
摘要翻译：光学头包括：当滑动器浮动在记录介质上方时相对于记录介质移动的滑块; 光波导，其设置在滑块的端部的侧表面上，并且具有在记录介质上形成光斑的聚焦功能; 以及将光笔引导到光波导的导光光学系统。从光导光学系统接收光笔的光笔耦合部分设置在平行于光笔被光波导引导的方向的表面上; 并且在光导光学系统中设置将光笔偏转到光笔耦合部分的反射表面。光笔耦合部具有校正从导光光学系统倾斜入射的光笔倾斜入射引起的像差的功能。在反射表面和光笔耦合部分之间设置折射率大于1的介质构件。

6. 发明申请

US20060279821A1 Holographic drive head alignments 有权
标题翻译：全息驱动头对准
公开(公告)号：US20060279821A1
公开(公告)日：2006-12-14
申请号：US11440369
申请日：2006-05-25
申请人： Brian Riley , Aaron Wegner
发明人： Brian Riley , Aaron Wegner
IPC分类号： G02B5/32
CPC分类号： G02B7/005 , G02B7/004 , G11B7/0065 , G11B7/128 , G11B7/1384 , G11B7/22
摘要： The present invention relates to embodiments of: (1) a unitary holographic drive head assembly mounting structure; (2) an assembly comprising a unitary holographic drive head assembly mounting structure and a plurality of holographic drive head components and/or subassemblies; (3) a subassembly comprising a spatial light modulator, detector array, and a beam splitter; (4) a device comprising a spatial light modulator and a physical aperture positioned over or an imaged aperture projected onto the photoactive area of the spatial light modulator; (5) a system for optically aligning or pointing a laser in a holographic drive head assembly; (6) a light source subassembly comprising a laser, a fiber coupling lens; and an optical fiber having a fiber connector ready output end; and (7) a light source subsystem comprising a laser source, beam conditioning optics, fiber coupling optics for receiving the conditioned light beam, and a fiber optic connector for receiving the conditioned light beam from the fiber coupling optics.
摘要翻译：本发明涉及以下实施例：（1）一体式全息驱动头组件安装结构; （2）组件，其包括单一全息驱动头组件安装结构和多个全息驱动头组件和/或子组件; （3）包括空间光调制器，检测器阵列和分束器的子组件; （4）一种装置，包括空间光调制器和位于所述空间光调制器的光活性区域上的成像孔的物理孔; （5）用于在全息驱动头组件中光学对准或指向激光的系统; （6）一种光源子组件，包括激光器，光纤耦合透镜; 以及具有光纤连接器就绪输出端的光纤; 以及（7）光源子系统，包括激光源，光束调节光学器件，用于接收经调节的光束的光纤耦合光学器件，以及用于从光纤耦合光学器件接收经调节的光束的光纤连接器。

7. 发明申请

US20060194151A1 Recording medium and information recording and reproducing method using the same 审中-公开
标题翻译：记录介质和使用其的信息记录和再现方法
公开(公告)号：US20060194151A1
公开(公告)日：2006-08-31
申请号：US11327521
申请日：2006-01-09
申请人： Yoshio Inagaki , Masayuki Naya
发明人： Yoshio Inagaki , Masayuki Naya
IPC分类号： G11B7/24
CPC分类号： B82Y10/00 , G11B7/00455 , G11B7/0052 , G11B7/1384 , G11B7/244 , G11B7/247 , G11B7/259 , G11B7/2595 , G11B2007/24624
摘要： A recording medium comprises a substrate and a recording layer overlaid on the substrate. The recording layer comprises a material, which has properties such that, when recording light having a predetermined wavelength λ1 is irradiated to the material, the material is capable of being caused to change into a fluorescent material and such that, when excitation light having a wavelength λ2 is then irradiated to the thus formed fluorescent material, the fluorescent material is capable of being caused to produce fluorescence. The wavelength λ1 of the recording light and the wavelength λ2 of the excitation light may be identical or different. The substrate may be constituted of a material having properties such that, when the excitation light is irradiated to the material, the material does not produce fluorescence having a wavelength identical with the wavelength of the fluorescence produced by the fluorescent material.
摘要翻译：记录介质包括衬底和覆盖在衬底上的记录层。记录层包括一种材料，其具有这样的特性，即当记录具有预定波长λ1的光被照射到材料时，该材料能够变成荧光材料，并且使得当具有然后将波长λ2照射到如此形成的荧光材料上，荧光材料能够产生荧光。记录光的波长λ1和激发光的波长λ2可以相同或不同。衬底可以由具有这样的特性的材料构成，即当激发光照射到材料时，材料不产生具有与由荧光材料产生的荧光的波长相同的波长的荧光。

8. 发明授权

US07058001B2 Recording medium and information recording and reproducing method using the same 失效
公开(公告)号：US07058001B2
公开(公告)日：2006-06-06
申请号：US09793721
申请日：2001-02-27
申请人： Yoshio Inagaki , Masayuki Naya
发明人： Yoshio Inagaki , Masayuki Naya
IPC分类号： G11B7/24
CPC分类号： B82Y10/00 , G11B7/00455 , G11B7/0052 , G11B7/1384 , G11B7/244 , G11B7/247 , G11B7/259 , G11B7/2595 , G11B2007/24624
摘要： A recording medium comprises a substrate and a recording layer overlaid on the substrate. The recording layer comprises a material, which has properties such that, when recording light having a predetermined wavelength λ1 is irradiated to the material, the material is capable of being caused to change into a fluorescent material and such that, when excitation light having a wavelength λ2 is then irradiated to the thus formed fluorescent material, the fluorescent material is capable of being caused to produce fluorescence. The wavelength λ1 of the recording light and the wavelength λ2 of the excitation light may be identical or different. The substrate may be constituted of a material having properties such that, when the excitation light is irradiated to the material, the material does not produce fluorescence having a wavelength identical with the wavelength of the fluorescence produced by the fluorescent material.

9. 发明授权

US06970307B2 Optical near-field generating element and optical apparatus including the same 失效
公开(公告)号：US06970307B2
公开(公告)日：2005-11-29
申请号：US10917366
申请日：2004-08-13
申请人： Satoshi Sugiura , Yuzo Yamakawa
发明人： Satoshi Sugiura , Yuzo Yamakawa
IPC分类号： G01Q60/18 , G01Q60/22 , G01Q70/06 , G11B7/135 , G02B9/00 , G02B9/08
CPC分类号： G01Q60/22 , G11B7/1381 , G11B7/1384 , G11B7/1387 , G11B7/1398
摘要： An optical near-field generating element is provided with: a light shielding member, which is placed on an optical path of light emitted from a light source, for defining a micro opening having a diameter equal to or shorter than a wavelength of the light; and a dielectric film placed in close contact with the micro opening. Alternatively, an optical near-field generating element is provided with a light shielding member, which is placed on an optical path of lights emitted from a light source, for defining a micro opening having a diameter equal to or shorter than a wavelength of the light, the shielding member equipped with: a main portion for defining a basic shape of the micro opening; and a protrusion portion protruding from the main portion toward the center of the micro opening.

10. 发明授权

US06968561B2 Optical library and optical storage system 失效
标题翻译：光学库和光学存储系统
公开(公告)号：US06968561B2
公开(公告)日：2005-11-22
申请号：US10607720
申请日：2003-06-27
申请人： Hisashi Katao
发明人： Hisashi Katao
IPC分类号： G11B7/12 , G11B7/135 , G11B25/04 , G11B33/12 , G11B33/14 , G11B7/085 , G11B21/02 , G11B23/03
CPC分类号： G11B33/125 , G11B7/122 , G11B7/1384 , G11B25/043 , G11B33/121 , G11B33/1446
摘要： At least an optical disk, a spindle motor, an optical head assembly and a seeking mechanism are mounted in a disk cartridge to accordingly establish a hermetically sealed structure. On the other hand, a disk cartridge guide member, an optical assembly, a disk cartridge lock mechanism, and an optical path switching mechanism are mounted in an optical disk drive. This enables the structure of improving the dust immunity of the disk cartridge and the low cost. Moreover, the optical disk drive can accommodate a plurality of disk cartridges. Thus, a disk cartridge implements a memory corresponding to various services. Or, an optical library of the present invention has mechanisms for mounting and detaching the optical disk cartridge accordingly accommodating a large number of disk cartridges in a limited space. Moreover, it is possible to provide an extremely small type of an optical disk drive to thereby design a memory unit applicable to various services including a portable apparatus. This is a media convertible storage system, which is superior in dust immunity and rapid access of a fixed magnetic disk and can record large-scale information and can satisfy various requests from miscellaneous application fields.
摘要翻译：至少一个光盘，主轴电动机，光学头组件和寻求机构安装在盘盒中以相应地建立一个密封的结构。另一方面，在光盘驱动器中安装有盘盒引导构件，光学组件，盘盒锁定机构和光路切换机构。这使得能够提高盘盒的防尘性和低成本的结构。此外，光盘驱动器可以容纳多个盘盒。因此，磁盘盒实现与各种服务对应的存储器。或者，本发明的光学库具有用于相对于在有限空间中容纳大量盘盒的光盘盒的安装和拆卸的机构。此外，可以提供极小型的光盘驱动器，从而设计可应用于包括便携式设备的各种服务的存储单元。这是一种媒体可转换存储系统，具有优越的防尘性和固定磁盘的快速访问能力，能够记录大规模信息，可以满足各种应用领域的各种要求。

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