Two-dimensional acousto-optic deflector using on-axis anisotropic Bragg diffraction for internal drum scanning exposure systems

Hidetoshi Shinada; Katsuto Sumi; Tatsuo Shiina

doi:10.1117/1.OE.56.8.085107

30 August 2017 Two-dimensional acousto-optic deflector using on-axis anisotropic Bragg diffraction for internal drum scanning exposure systems

Hidetoshi Shinada, Katsuto Sumi, Tatsuo Shiina

Author Affiliations +

Optical Engineering, Vol. 56, Issue 8, 085107 (August 2017). https://doi.org/10.1117/1.OE.56.8.085107

Abstract

We researched and demonstrated two-dimensional (2-D) deflectors constructed by on-axis type acousto-optic deflectors (AOD) in order to attain a multibeam recording for an internal drum scanning exposure system. First, we researched an on-axis AOD using anisotropic Bragg diffraction to obtain high diffraction efficiency. A significant improvement of diffraction efficiency was observed when acoustic waves are travelling in the [110] axis of paratellurite (TeO2) crystal, an incident light of linear polarization is traveling into a TeO2 along the [001] optic axis, the crystal is rotated about the [110] axis, and furthermore the direction of polarization of incident light is adjusted to the eigenmode of a TeO2 crystal. Second, we configured 2-D deflectors by cascading two AODs and achieved the multibeam laser recording for the internal drum scanning exposure system.

Citation Download Citation

Hidetoshi Shinada, Katsuto Sumi, and Tatsuo Shiina "Two-dimensional acousto-optic deflector using on-axis anisotropic Bragg diffraction for internal drum scanning exposure systems," Optical Engineering 56(8), 085107 (30 August 2017). https://doi.org/10.1117/1.OE.56.8.085107

Received: 5 May 2017; Accepted: 10 August 2017; Published: 30 August 2017

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