CPC G11B 13/08 (2013.01) [G11B 2005/0021 (2013.01)] | 20 Claims |
1. A magnetic recording head assembly, comprising:
a main pole;
a near field transducer (NFT) disposed adjacent to the main pole at a media facing surface;
a vertical cavity surface emitting laser (VCSEL) device coupled to a top surface of the magnetic recording head assembly, the top surface opposite a media facing surface of the magnetic recording head assembly; and
a waveguide structure coupled between the NFT and the VCSEL device, the waveguide structure comprising:
a waveguide coupled to the NFT;
a multimodal interference (MMI) combiner having a first end coupled to the waveguide; and
a plurality of waveguide channels coupled to a second end the MMI combiner opposite the first end of the MMI combiner, wherein each of the plurality of waveguide channels has a different curvature such that each of the plurality of waveguide channels is phase coherent with adjacent waveguide channels.
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