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    • 3. 发明授权
    • Double optical grating
    • 双光栅
    • US08422841B1
    • 2013-04-16
    • US12779160
    • 2010-05-13
    • Zhong ShiHongxing YuanShing LeeZhongyan WangJinshan Li
    • Zhong ShiHongxing YuanShing LeeZhongyan WangJinshan Li
    • G02B6/34
    • G02B6/124G02B27/4272
    • A method and system for providing an optical grating are described. The optical grating is configured for light of a wavelength. The optical grating includes a top cladding, a first plurality of discrete ridges forming a first grating, a core, a second plurality of discrete ridges forming a second grating, and a bottom cladding. The first plurality of discrete ridges are spaced apart by a first pitch. The second plurality of discrete ridges are spaced apart by a second pitch. The core has a top side adjacent to at least a portion of the top cladding and a bottom side. The bottom cladding is adjacent to at least a portion of the bottom side of the core. The second grating resides between the bottom cladding and the core.
    • 描述了一种用于提供光栅的方法和系统。 光栅被配置用于波长的光。 光栅包括顶部包层,形成第一光栅的第一多个离散脊,芯,形成第二光栅的第二多个离散脊和底部包层。 第一多个离散脊部间隔开第一间距。 第二多个离散脊间隔开第二间距。 芯具有与顶部包层的至少一部分相邻的顶侧和底侧。 底部包层与芯的底侧的至少一部分相邻。 第二个光栅位于底部包层和芯之间。
    • 5. 发明授权
    • EAMR head having improved optical coupling efficiency
    • EAMR头具有改善的光耦合效率
    • US08325569B1
    • 2012-12-04
    • US13169720
    • 2011-06-27
    • Zhong ShiZhongyan WangShing LeeHongxing Yuan
    • Zhong ShiZhongyan WangShing LeeHongxing Yuan
    • G11B11/00
    • G11B5/6088G11B5/314G11B2005/0021
    • A method and system provide an EAMR transducer having an air-bearing surface (ABS) that resides near a media during use. The EAMR transducer includes a write pole, coil(s), a near field transducer (NFT), a waveguide, and a reflective grating. The write pole writes to a region of the media. The coil(s) energize the write pole. The NFT is proximate to the ABS and focuses the energy onto the media. The waveguide is configured to direct the energy from the laser toward the NFT at an incident angle with respect to the ABS. A first portion of the energy reflects off of the ABS at a reflected angle. The reflective grating receives the first portion of the energy at the reflected angle from the ABS and reflects a second portion of the energy toward the ABS. The NFT resides between at least part of the waveguide and the reflective grating.
    • 一种方法和系统提供具有在使用期间驻留在介质附近的空气轴承表面(ABS)的EAMR换能器。 EAMR传感器包括写极,线圈,近场换能器(NFT),波导和反射光栅。 写入磁极写入媒体的一个区域。 线圈使写入极点通电。 NFT靠近ABS,将能量聚焦在媒体上。 波导被配置为以相对于ABS的入射角将来自激光器的能量引向NFT。 能量的第一部分以反射角反射离开ABS。 反射光栅从ABS接收以反射角度的能量的第一部分,并将能量的第二部分反射向ABS。 NFT位于波导和反射光栅的至少一部分之间。