Independent image replay in a multiplexed computer-generated waveguide hologram using interlaced gratings with orthogonal grooves

Author

Li, Ming ; Kristjánsson, Sigurgeir ; Larsson, Anders

Author_Institution

Inst. for Microstruct. Sci., Nat. Res. Council of Canada, Ottawa, Ont., Canada

Volume

10

Issue

3

fYear

1998

fDate

3/1/1998 12:00:00 AM

Firstpage

385

Lastpage

387

Abstract

We propose and experimentally demonstrate a novel type of multiplexed off-plane computer-generated waveguide hologram, using two interlaced subarrays of waveguide gratings with orthogonal grooves. Two spot arrays can be independently produced at different deflection angles, and they can be focused at different focal lengths above the waveguide. Electron-beam lithography and reactive ion-beam etching (RIBE) were used in fabricating this device. The uniformity error of the spot arrays was measured to be approximately 10%.

Keywords

arrays; computer-generated holography; electron beam lithography; holographic gratings; multiplexing; optical fabrication; optical focusing; optical images; optical waveguides; deflection angles; electron-beam lithography; focal lengths; independent image replay; interlaced gratings; multiplexed computer-generated waveguide hologram; multiplexed off-plane computer-generated waveguide hologram; optical fabrication; orthogonal grooves; spot arrays; waveguide gratings; Arrayed waveguide gratings; Focusing; Holographic optical components; Holography; Optical beams; Optical interconnections; Optical refraction; Optical variables control; Optical waveguide theory; Optical waveguides;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.661418

Filename

661418