LIGHT BLOCKER FOR STRAY LIGHT REDUCTION WITHIN A SLIDER

摘要

A waveguide has an input end near a top of a slider coupled to receive light from an energy source. The waveguide delivers the light at an output end of the waveguide near a bottom of the slider. The apparatus includes light blocking members on respective first and second cross track sides of the waveguide. The light blocking members are configured to block stray light away from a light path. The light blocking members are at a location along a length of the waveguide between the top and the bottom of the slider. Confinement of light within the waveguide is near a maximum at the location.

主权项

1. An apparatus comprising:
a waveguide comprising an input end near a top of a slider coupled to receive light from an energy source, the waveguide delivering the light at an output end of the waveguide near a bottom of the slider; and light blocking members on respective first and second cross track sides of the waveguide and configured to block stray light away from a light path, the light blocking members at a location along a length of the waveguide between the top and the bottom of the slider, confinement of light within the waveguide being near a maximum at the location.