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1. 发明授权

US08456963B1 Method and system for an energy assisted magnetic recording head having a suspension-mounted laser 有权
标题翻译：具有悬挂式激光器的能量辅助磁记录头的方法和系统
公开(公告)号：US08456963B1
公开(公告)日：2013-06-04
申请号：US12758319
申请日：2010-04-12
申请人： Yufeng Hu , Ruolin Li , Ut Tran , Jinshan Li
发明人： Yufeng Hu , Ruolin Li , Ut Tran , Jinshan Li
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/4866 , G11B5/6088 , G11B2005/0021
摘要： An energy assisted magnetic recording (EAMR) disk drive comprises a suspension and a slider having a back side, a laser-facing surface, and an air-bearing surface (ABS) opposite the back side. The slider is mounted to the suspension on the back side. The disk drive further comprises an EAMR transducer coupled with the slider, a portion of the EAMR transducer residing in proximity to the ABS and on the laser-facing surface of the slider. The disk drive further comprises a laser coupled with the suspension and having a light emitting surface facing the laser-facing surface of the slider. The laser has an optic axis substantially parallel to the suspension. The laser provides energy substantially along the optic axis and is optically coupled with the EAMR transducer via free space. The EAMR transducer receives the energy from the laser and writes to the media using the energy.
摘要翻译：能量辅助磁记录（EAMR）盘驱动器包括悬架和具有背面，面向激光的表面和与背面相对的空气轴承表面（ABS）的滑块。滑块安装在背面的悬架上。磁盘驱动器还包括与滑动器耦合的EAMR换能器，位于ABS附近的EAMR换能器的一部分和滑块的面向激光的表面。磁盘驱动器还包括与悬架连接并具有面向滑块的面向激光的表面的发光表面的激光器。激光器具有基本上平行于悬架的光轴。激光器基本沿光轴提供能量，并通过自由空间与EAMR传感器光学耦合。 EAMR传感器从激光器接收能量，并使用能量写入介质。

2. 发明授权

US08125856B1 Method and system for optically coupling a laser with a transducer in an energy assisted magnetic recording disk drive 有权
标题翻译：用于在能量辅助磁记录磁盘驱动器中将激光与换能器光学耦合的方法和系统
公开(公告)号：US08125856B1
公开(公告)日：2012-02-28
申请号：US12613452
申请日：2009-11-05
申请人： Ruolin Li , Ut Tran , Yufeng Hu , Jinshan Li
发明人： Ruolin Li , Ut Tran , Yufeng Hu , Jinshan Li
IPC分类号： G11B11/00
CPC分类号： G11B5/105 , G11B5/6088 , G11B2005/0021
摘要： A method and system for providing an energy assisted magnetic recording (EAMR) disk drive are described. A media for storing data and a slider are provided. The slider has a back side, a trailing face, and an air-bearing surface (ABS) opposite to the back side. At least one laser is coupled with the trailing face of the slider, and has an optic axis substantially parallel to the trailing face. The laser(s) provide energy substantially along the optic axis. Optics are coupled with the trailing face of the slider and receive the energy from the laser(s) via free space. At least one EAMR transducer coupled with the slider. At least part of the EAMR transducer resides in proximity to the ABS. The optics direct the energy from the laser(s) to the EAMR transducer(s). The EAMR transducer(s) receive the energy from the optics and write to the media using the energy.
摘要翻译：描述了一种用于提供能量辅助磁记录（EAMR）磁盘驱动器的方法和系统。提供了用于存储数据的介质和滑块。滑块具有背面，后表面和与背面相对的空气轴承表面（ABS）。至少一个激光器与滑块的后表面耦合，并且具有基本上平行于后面的光轴。激光器基本沿着光轴提供能量。光学器件与滑块的后表面耦合，并通过自由空间从激光器接收能量。至少一个EAMR传感器与滑块相连。至少部分EAMR传感器位于ABS附近。光学器件将能量从激光器引导到EAMR传感器。 EAMR传感器从光学器件接收能量，并使用能量写入介质。

3. 发明授权

US08077557B1 Multiple aperture VCSEL EAMR heads 有权
标题翻译：多孔径VCSEL EAMR头
公开(公告)号：US08077557B1
公开(公告)日：2011-12-13
申请号：US12468813
申请日：2009-05-19
申请人： Yufeng Hu , Ruolin Li , Ut Tran , Jinshan Li
发明人： Yufeng Hu , Ruolin Li , Ut Tran , Jinshan Li
IPC分类号： G11B11/05
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A magnetic recording device comprises a multi-aperture vertical cavity surface emitting laser (VCSEL) operably coupled to a magnetic recording head and a plurality of waveguides disposed in the magnetic recording head. Each of the plurality of waveguides has a first end coupled to a different aperture of the multi-aperture VCSEL. The magnetic recording device further comprises a near field transducer disposed in the magnetic recording head. Each of the plurality of waveguides has a second end coupled to the near field transducer.
摘要翻译：磁记录装置包括可操作地耦合到磁记录头的多孔垂直腔表面发射激光器（VCSEL）和设置在磁记录头中的多个波导。多个波导中的每一个具有耦合到多孔径VCSEL的不同孔径的第一端。磁记录装置还包括设置在磁记录头中的近场换能器。多个波导中的每一个具有耦合到近场换能器的第二端。

4. 发明授权

US08670295B1 Method and system for optically coupling a laser with a transducer in an energy assisted magnetic recording disk drive 有权
标题翻译：用于在能量辅助磁记录磁盘驱动器中将激光与换能器光学耦合的方法和系统
公开(公告)号：US08670295B1
公开(公告)日：2014-03-11
申请号：US12973328
申请日：2010-12-20
申请人： Yufeng Hu , Ruolin Li , Ut Tran
发明人： Yufeng Hu , Ruolin Li , Ut Tran
IPC分类号： G11B11/00
CPC分类号： G11B5/6088 , G11B5/105 , G11B5/314 , G11B2005/0021
摘要： A method and system for providing an energy assisted magnetic recording (EAMR) transducer coupled with a laser. The EAMR transducer has an air-bearing surface (ABS) configured to reside in proximity to a media during use. The EAMR transducer includes a write pole, at least one coil, a waveguide and an output device. The write pole is configured to write to a region of the media. The at least one coil is for energizing the write pole. The waveguide has an input optically coupled to the laser and configured to direct energy from the laser toward the ABS for heating the region of the media. The output device is optically coupled to the waveguide. The output device coupling out a portion of the energy not coupled to the media.
摘要翻译：一种用于提供与激光器耦合的能量辅助磁记录（EAMR）传感器的方法和系统。 EAMR传感器具有配置成在使用期间驻留在介质附近的空气轴承表面（ABS）。 EAMR传感器包括写极，至少一个线圈，波导和输出装置。写入极配置为写入介质的一个区域。至少一个线圈用于激励写入极。波导具有光学耦合到激光器并被配置为将能量从激光器引向ABS以加热介质区域的输入。输出装置光耦合到波导。输出设备耦合出未耦合到介质的能量的一部分。

5. 发明授权

US08200054B1 High efficiency grating coupling for light delivery in EAMR 有权
标题翻译：高效光栅耦合用于EAMR中的光传输
公开(公告)号：US08200054B1
公开(公告)日：2012-06-12
申请号：US12426262
申请日：2009-04-19
申请人： Ruolin Li , Yufeng Hu , Ut Tran
发明人： Ruolin Li , Yufeng Hu , Ut Tran
IPC分类号： G02B6/34 , G11B11/00 , G11B11/24
CPC分类号： G11B5/314 , G02B6/124 , G02B6/34 , G02B6/4215 , G11B5/3163 , G11B2005/0021
摘要： A magnetic head comprising a waveguide coupler for coupling incident electromagnetic (EM) radiation into a waveguide is disclosed. The waveguide coupler includes a bottom clad layer and a waveguide core layer formed above the bottom clad layer. An interface between the bottom clad layer and the waveguide core layer includes a first grating having a first period and a first etch depth, which are configured to couple a first portion of the incident EM radiation into the waveguide core layer. The waveguide coupler can further comprise a top clad layer formed above the waveguide core layer. An interface between the waveguide core layer and the top clad layer includes a second grating having a second period and a second etch depth. The second period and the second etch depth are configured to couple a second portion of the incident EM radiation into the waveguide core layer.
摘要翻译：公开了一种包括用于将入射电磁（EM）辐射耦合到波导中的波导耦合器的磁头。波导耦合器包括形成在底部包层上方的底部包层和波导芯层。底部包层和波导芯层之间的界面包括具有第一周期和第一蚀刻深度的第一光栅，其被配置为将入射的EM辐射的第一部分耦合到波导芯层中。波导耦合器还可以包括形成在波导芯层上方的顶部覆层。波导芯层和顶部覆层之间的界面包括具有第二周期和第二蚀刻深度的第二光栅。第二周期和第二蚀刻深度被配置为将入射的EM辐射的第二部分耦合到波导芯层中。

6. 发明授权

US08532450B1 Optical grating and method of manufacture 有权
标题翻译：光栅及其制造方法
公开(公告)号：US08532450B1
公开(公告)日：2013-09-10
申请号：US12645491
申请日：2009-12-23
申请人： Zhongyan Wang , Wei Gao , Ruolin Li , HongXing Yuan , Jinshan Li
发明人： Zhongyan Wang , Wei Gao , Ruolin Li , HongXing Yuan , Jinshan Li
IPC分类号： G02F1/295
CPC分类号： G02B5/1857
摘要： A method and system for providing an optical grating are described. The optical grating is configured for light of a wavelength and includes a first optically transparent layer, a stop layer on the first optically transparent layer, and a second optically transparent layer on the stop layer. The first optically transparent layer is continuous and includes a material. The second optically transparent layer also includes the material. The second optically transparent layer also includes a plurality of discrete ridges spaced apart by a pitch. The stop layer is configured to be invisible to the light.
摘要翻译：描述了一种用于提供光栅的方法和系统。光栅被配置成用于波长的光，并且包括第一光学透明层，第一光学透明层上的停止层和停止层上的第二光学透明层。第一光学透明层是连续的并且包括材料。第二光学透明层还包括材料。第二光学透明层还包括由间距间隔开的多个离散脊。停止层被配置为对光不可见。

7. 发明授权

US07780360B2 Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit 有权
标题翻译：在平面光波电路中产生和监测光信号并控制其功率水平的方法和装置
公开(公告)号：US07780360B2
公开(公告)日：2010-08-24
申请号：US12176758
申请日：2008-07-21
申请人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Arentoft Jayaswal
发明人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Arentoft Jayaswal
IPC分类号： G02B6/36 , H01S3/13
CPC分类号： H01S5/141 , H01L2224/48091 , H01L2224/73265 , H01S5/02248 , H01S5/0268 , H01S5/0683 , H01S5/4062 , H01S5/4087 , H01L2924/00014
摘要： Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical signal received at a first end of the waveguide. The trench may also be formed in the waveguide having a first sidewall and a second sidewall, the first and second sidewalls forming first and second angles with the waveguide's propagation direction. The second sidewall may include a reflective surface formed thereon. The photodetector may be configured to receive an optical signal propagated in the waveguide, through the first sidewall and reflected from the reflective surface on the second sidewall.
摘要翻译：公开了一种光学检测装置的实施例，其可以包括波导，在波导中形成的沟槽，反射表面和光电检测器中的一个或多个。波导可以形成在半导体衬底中，以传播在波导的第一端处接收的光信号。沟槽也可以形成在具有第一侧壁和第二侧壁的波导中，第一和第二侧壁与波导的传播方向形成第一和第二角度。第二侧壁可以包括形成在其上的反射表面。光电检测器可以被配置为接收在波导中传播的光信号，通过第一侧壁并从第二侧壁上的反射表面反射。

8. 发明授权

US07071492B2 Thermo-optical device 失效
标题翻译：热光器件
公开(公告)号：US07071492B2
公开(公告)日：2006-07-04
申请号：US10609839
申请日：2003-06-30
申请人： Ruolin Li , Ut Tran
发明人： Ruolin Li , Ut Tran
IPC分类号： H01L27/15
CPC分类号： G02F1/065 , G02F1/0147 , G02F2201/066
摘要： A polymer well may be formed over a thermal oxide formed over a semiconductor substrate in one embodiment. The well may include a waveguide and a pair of heaters adjacent the waveguide. Each heater may be mounted on a platform of insulating material to reduce heat loss through the substrate and the thermal oxide, in one embodiment.
摘要翻译：在一个实施例中，聚合物阱可以形成在半导体衬底上形成的热氧化物上。阱可以包括波导和邻近波导的一对加热器。在一个实施例中，每个加热器可以安装在绝缘材料的平台上，以减少通过基底和热氧化物的热损失。

9. 发明申请

US20060285106A1 Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit 失效
标题翻译：在平面光波电路中产生和监测光信号并控制其功率水平的方法和装置
公开(公告)号：US20060285106A1
公开(公告)日：2006-12-21
申请号：US11497954
申请日：2006-08-01
申请人： Achintya Bhowmik , Nagesh Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William Wong , Ruolin Li , Jesper Jayaswal
发明人： Achintya Bhowmik , Nagesh Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William Wong , Ruolin Li , Jesper Jayaswal
IPC分类号： G01N21/00
CPC分类号： H01S5/141 , H01L2224/48091 , H01L2224/73265 , H01S5/02248 , H01S5/0268 , H01S5/0683 , H01S5/4062 , H01S5/4087 , H01L2924/00014
摘要： Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical signal received at a first end of the waveguide. The trench may also be formed in the waveguide having a first sidewall and a second sidewall, the first and second sidewalls forming first and second angles with the waveguide's propagation direction. The second sidewall may include a reflective surface formed thereon. The photodetector may be configured to receive an optical signal propagated in the waveguide, through the first sidewall and reflected from the reflective surface on the second sidewall.
摘要翻译：公开了一种光学检测装置的实施例，其可以包括波导，在波导中形成的沟槽，反射表面和光电检测器中的一个或多个。波导可以形成在半导体衬底中，以传播在波导的第一端处接收的光信号。沟槽也可以形成在具有第一侧壁和第二侧壁的波导中，第一和第二侧壁与波导的传播方向形成第一和第二角度。第二侧壁可以包括形成在其上的反射表面。光电检测器可以被配置为接收在波导中传播的光信号，通过第一侧壁并从第二侧壁上的反射表面反射。

10. 发明授权

US07099360B2 Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit 有权
标题翻译：在平面光波电路中产生和监测光信号并控制其功率水平的方法和装置
公开(公告)号：US07099360B2
公开(公告)日：2006-08-29
申请号：US10357630
申请日：2003-02-03
申请人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Jayaswal-Arentoff
发明人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Jayaswal-Arentoff
IPC分类号： H01S3/13 , H01S5/00
CPC分类号： H01S5/141 , H01L2224/48091 , H01L2224/73265 , H01S5/02248 , H01S5/0268 , H01S5/0683 , H01S5/4062 , H01S5/4087 , H01L2924/00014
摘要： An optical transmitter includes an external cavity laser array formed in a PLC, a trench-based detector array and an AWG. The external cavity laser is formed using an array of substantially similar laser gain blocks and an array of gratings formed in waveguides connected to the gain blocks. Each grating defines the output wavelength for its corresponding external cavity laser. Each detector of the detector array includes a coupler to cause a portion of a corresponding laser output signal of the laser array to propagate through a first sidewall of a trench and reflect off a second sidewall of the trench to a photodetector. In one embodiment, the photodetector outputs a signal indicative of the power level of the reflected signal, which a controller uses to control the laser array to equalize the power of the laser output signals.
摘要翻译：光发射机包括形成在PLC中的外腔激光器阵列，基于沟槽的检测器阵列和AWG。使用基本相似的激光增益块的阵列和形成在连接到增益块的波导中的光栅阵列来形成外腔激光器。每个光栅定义其对应的外腔激光器的输出波长。检测器阵列的每个检测器包括耦合器，以使激光器阵列的对应的激光输出信号的一部分传播通过沟槽的第一侧壁并将其从沟槽的第二侧壁反射到光电检测器。在一个实施例中，光电检测器输出指示反射信号的功率电平的信号，控制器用于控制激光器阵列以均衡激光输出信号的功率。

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