Thermally-Assisted Magnetic Recording Head Comprising Light Source with Photonic-Band Layer

摘要: A thermally-assisted magnetic recording head is provided, in which a light source having sufficiently high output power for performing thermal-assist disposed the element-integration surface of substrate to achieve improved mass-productivity. The includes: multilayered structure including photonic-band layer and light-emitting opposed surface; diffraction optical element that converges emitted light; light-path changer changes direction converged waveguide propagates direction-changed toward opposed-to-medium pole generates write field. surface-emitting type includes periodic from an active region resonates, thus emits laser on quite different principle VCSEL. Therefore, can be surface, even though power.