title: Integrated optic grating-coupler-based optical head.
abstract: An integrated optic grating-coupler-based optical recording head that contains fewer components and is easier to align than a conventional bulk-optics-based optical head is presented. Exemplary rf signals, radial tracking, and focus error signals obtained with the head are presented. The integration of the grating head on a single coupler on a single substrate is proposed, using a grating to tapered film waveguide.
authors.forename: T A
authors.initials: TA
authors.lastname: Strasser
authors.forename: M C
authors.initials: MC
authors.lastname: Gupta