发明名称 |
High order tapered waveguide for use in a heat assisted magnetic recording head |
摘要 |
A heat-assisted magnetic recording (HAMR) transducer is coupled with a laser for providing energy and has an air-bearing surface (ABS) configured to reside in proximity to a media during use. The HAMR transducer includes a write pole, at least one coil, and a tapered waveguide optically coupled with the laser. The write pole is configured to write to a region of the media. The coil(s) energize the write pole. The tapered waveguide includes an entrance distal from the ABS, a bottom proximate to the ABS, a first side and a second side opposite to the first side. At least a portion of the first side and the second side converge in accordance with a function having at least one term having an order greater than one. |
申请公布号 |
US9064527(B1) |
申请公布日期 |
2015.06.23 |
申请号 |
US201313919949 |
申请日期 |
2013.06.17 |
申请人 |
Western Digital (Fremont), LLC |
发明人 |
Shi Zhong;Morelli Michael V.;Yuan Hongxing |
分类号 |
G11B11/00;G11B11/105 |
主分类号 |
G11B11/00 |
代理机构 |
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代理人 |
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主权项 |
1. A heat assisted magnetic recording (HAMR) transducer coupled with a laser for providing energy and having an air-bearing surface (ABS) configured to reside in proximity to a media during use, the HAMR transducer comprising:
a write pole configured to write to a region of the media; at least one coil for energizing the write pole; a tapered waveguide optically coupled with the laser, the tapered waveguide including an entrance distal from the ABS, a bottom proximate to the ABS, a first side and a second side opposite to the first side, at least a portion of the first side and at least a portion of the second side converging in accordance with a function having at least one term having an order that is at least three; wherein the waveguide is an interferometric tapered waveguide including a plurality of arms. |
地址 |
Fremont CA US |