Optical/magnetic composite head having magnetic and optical...

Details Optical/magnetic composite head having magnetic and optical... Optical/magnetic composite head having magnetic and optical...

G - Physics

11

B

352/29.02, 352/3

G11B 5/127 (2006.01) G11B 7/135 (2006.01) G11B 11/105 (2006.01)

Patent

CA 2013385

A photomagnetic composite head includes a magnetic head and an optical head integrated into one unit. An optical waveguide path of the optical head is located on the surface of the magnetic head that faces a recording medium. A laser beam passes through the optical waveguide path and is irradiated on a point on the recording medium where a magnetic field is impressed from the magnetic head. Accordingly, recording can be performed under a condition in which the coercivity of the recording medium has been reduced by the laser beam, thus making it possible to achieve high density recording by using a recording medium with a high coercivity.

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