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1. 发明申请

WO2011146017A1 OPTICAL COUPLER FOR HAMR HEAD 审中-公开
标题翻译：光学耦合器
公开(公告)号：WO2011146017A1
公开(公告)日：2011-11-24
申请号：PCT/SG2011/000187
申请日：2011-05-19
申请人： AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH , XU, Baoxi , VIENNE, Guillaume , AN, Chengwu , TOH, Yeow Teck , CHIA, Cheow Wee , CHONG, Tow Chong
发明人： XU, Baoxi , VIENNE, Guillaume , AN, Chengwu , TOH, Yeow Teck , CHIA, Cheow Wee , CHONG, Tow Chong
IPC分类号： G02B6/26 , G11B5/33
CPC分类号： G11B5/314 , G02B6/132 , G02B6/305 , G11B2005/001 , G11B2005/0021
摘要： An optical coupler, a heat-assisted magnetic recording (HAMR) head, and a method for coupling light from an optical fiber or a planar waveguide to a slider waveguide of a HAMR head. The optical coupler comprises a planar waveguide structure configured for receiving light from the optical fiber or the planar waveguide at a first end thereof, and for coupling light to the slider waveguide at a second end thereof; wherein the planar waveguide structure comprises a bent portion disposed between the first and second ends such that the direction of the light signal is changed between the first and second ends; and wherein cross-sections of the planar waveguide structure at the first and second ends respectively are different for facilitating coupling of the received light at the first end to the slider waveguide at the second end.
摘要翻译：光耦合器，热辅助磁记录（HAMR）头以及用于将来自光纤或平面波导的光耦合到HAMR头的滑块波导的方法。光耦合器包括平面波导结构，其被配置为在其第一端处接收来自光纤或平面波导的光，并且用于在其第二端处将光耦合到滑块波导; 其中所述平面波导结构包括设置在所述第一端和所述第二端之间的弯曲部分，使得所述光信号的方向在所述第一端和所述第二端之间改变; 并且其中在第一端和第二端处的平面波导结构的横截面分别是不同的，以便于在第二端处将接收的光在第一端耦合到滑块波导。

2. 发明申请

WO2009022993A1 METHOD AND APPARATUS FOR TESTING MAGNETIC PROPERTIES OF MAGNETIC MEDIA 审中-公开
标题翻译：用于测试磁介质磁性的方法和装置
公开(公告)号：WO2009022993A1
公开(公告)日：2009-02-19
申请号：PCT/SG2008/000299
申请日：2008-08-13
申请人： AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH , AN, Chengwu , YE, Kaidong
发明人： AN, Chengwu , YE, Kaidong
IPC分类号： G01R33/12 , G01N27/72 , G01N21/01
CPC分类号： G01R33/0325 , G01N21/21 , G01N27/72
摘要： A method and apparatus for testing a magnetic medium. The method comprises applying a magnetic field of a time-varying strength; directing a polarized optical beam towards a portion of the medium that is in the magnetic field, wherein the optical beam is reflected by a surface of the medium at a point of incidence in the magnetic field; moving the medium relative to the optical beam so as to cause the point of incidence to repeatedly traverse each of a plurality of sectors along a track on the surface; obtaining a series of Kerr signal measurements of the reflected optical beam; grouping measurements into ensembles such that the measurements in an individual ensemble are those obtained while the point of incidence was in a corresponding one of the sectors; and determining at least one magnetic property of at least one of the sectors from the measurements in the corresponding ensemble.
摘要翻译：一种用于测试磁介质的方法和装置。该方法包括施加时变强度的磁场; 将偏振光束引导到处于磁场中的介质的一部分，其中所述光束在所述磁场中的入射点处被所述介质的表面反射; 使所述介质相对于所述光束移动，以使所述入射点沿着所述表面上的轨道重复地穿过多个扇区中的每一个; 获得反射光束的一系列克尔信号测量; 将测量分组成集合，使得单个集合中的测量是当发生点在相应的扇区中时获得的测量; 以及从所述相应组合中的测量确定至少一个扇区的至少一个磁性。

3. 发明申请

WO2011155903A1 METHOD AND APPARATUS FOR DETERMINING THERMAL MAGNETIC PROPERTIES OF MAGNETIC MEDIA 审中-公开
标题翻译：用于确定磁性介质的热磁特性的方法和装置
公开(公告)号：WO2011155903A1
公开(公告)日：2011-12-15
申请号：PCT/SG2011/000209
申请日：2011-06-13
申请人： AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH , AN, Chengwu , YE, Kaidong , XIE, Qiong , SONG, Wendong , TIAW, Kay Siang
发明人： AN, Chengwu , YE, Kaidong , XIE, Qiong , SONG, Wendong , TIAW, Kay Siang
IPC分类号： G01R33/032 , G01J4/04 , G01R33/12
CPC分类号： G01N21/01 , G01N21/63 , G01R33/0325
摘要： An apparatus and method of testing a magnetic medium at temperatures of interest is disclosed. Properties of the magnetic medium are determined by focusing light from a source of polarized light on a magnetic surface of the magnetic medium; measuring polarization of resulting reflected light due to the magneto-optical Kerr effect, using, for example a measuring subsystem; and varying the light source to heat the magnetic material where incident to pre-defined temperatures, thereby allowing determination of the magnetic properties using the magneto-optical Kerr effect at said pre-defined temperatures.
摘要翻译：公开了在感兴趣的温度下测试磁性介质的装置和方法。通过将来自偏振光源的光聚焦在磁性介质的磁性表面上来确定磁性介质的性质; 使用例如测量子系统测量由于磁光克尔效应引起的所产生的反射光的偏振; 并且改变光源以加热入射到预定温度的磁性材料，由此允许使用在所述预定温度下的磁光克尔效应来确定磁特性。

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