公开(公告)号：US09281659B1

公开(公告)日：2016-03-08

申请号：US14492802

申请日：2014-09-22

Applicant: Seagate Technology LLC

Inventor： Karim Tatah ,  Mourad Benakli ,  James Gary Wessel

IPC: H01S5/068 ,  H01S5/06 ,  H01S5/026 ,  H01S5/065

CPC classification number: G11B7/1263 ,  G11B5/02 ,  G11B5/09 ,  G11B5/40 ,  G11B5/455 ,  G11B2005/0021 ,  H01S5/02453 ,  H01S5/0261 ,  H01S5/0612 ,  H01S5/0617 ,  H01S5/06216 ,  H01S5/0651 ,  H01S5/06804 ,  H01S5/06808

Abstract: A method and apparatus provide for determining a temperature at a junction of a laser diode when the laser diode is operated in a lasing state that facilitates heat-assisted magnetic recording, comparing the junction temperature and an injection current supplied during the lasing state to stored combinations of junction temperature and injection current, and determining a likelihood of mode hopping occurring for the laser diode during the lasing state based on the comparison to stored combinations of junction temperature and injection current.

Abstract translation: 一种方法和装置，用于在激光二极管以促进热辅助磁记录的激光状态下操作时确定激光二极管的结点处的温度，将结温和在激光期间提供的注入电流与存储的组合进行比较 的结温和注入电流，并且基于与存储的结温和注入电流的组合的比较，确定在激光状态期间激光二极管发生模式跳变的可能性。

公开(公告)号：US20140355401A1

公开(公告)日：2014-12-04

申请号：US13908693

申请日：2013-06-03

Applicant: Seagate Technology LLC

Inventor： Xiaoyue Huang ,  Karim Tatah ,  Ziyou Zhou

IPC: G11B5/48 ,  G11B13/04

CPC classification number: G11B5/4866 ,  G11B5/105 ,  G11B2005/0021 ,  Y10T29/49032

Abstract: Implementations disclosed herein allow a magneto-optical polarization rotator to couple light from a light source of a HAMR recording device to waveguide attached to a slider. According to one implementation, the magneto-optical polarization rotator has a magnetophotonic crystal structure with a number of thin film layers configured to rotate the light by 90 degrees.

Abstract translation: 本文公开的实施方案允许磁光偏振旋转器将来自HAMR记录装置的光源的光耦合到附接到滑块的波导。 根据一个实施方案，磁光偏振旋转器具有磁光子晶体结构，其中许多薄膜层被配置为将光旋转90度。

公开(公告)号：US08885280B1

公开(公告)日：2014-11-11

申请号：US13908693

申请日：2013-06-03

Applicant: Seagate Technology LLC

Inventor： Xiaoyue Huang ,  Karim Tatah ,  Ziyou Zhou

IPC: G11B7/00

CPC classification number: G11B5/4866 ,  G11B5/105 ,  G11B2005/0021 ,  Y10T29/49032

Abstract: Implementations disclosed herein allow a magneto-optical polarization rotator to couple light from a light source of a HAMR recording device to waveguide attached to a slider. According to one implementation, the magneto-optical polarization rotator has a magnetophotonic crystal structure with a number of thin film layers configured to rotate the light by 90 degrees.

Abstract translation: 本文公开的实施方案允许磁光偏振旋转器将来自HAMR记录装置的光源的光耦合到附接到滑块的波导。 根据一个实施方案，磁光偏振旋转器具有磁光子晶体结构，其中许多薄膜层被配置为将光旋转90度。