Optical phase shifting with acousto-optic devices

Authors

Enbang Li, Tianjin UniversityFollow
Jianquan Yao, Tianjin University
Daoyin Yu, Tianjin University
Jiangtao Xi, University of WollongongFollow
Joe F. Chicharo, University of WollongongFollow

RIS ID

12476

Publication Details

Li, E., Xi, J., Chicharo, J. F., Yao, J. & Yu, D. (2005). Optical phase shifting with acousto-optic devices. Optics Letters, 3 (2), 189-191. Copyright the Optical Society.

Abstract

A novel optical phase-shifting method based on a well-known acousto-optic interaction is proposed. By using a pair of acousto-optic modulators (AOMs) and properly aligning them, we construct an optical phase shifter that can directly control the phase of a collimated beam. The proposed phase shifter is insensitive to the polarization of the incident beam when polarization-insensitive AOMs are used, and no calibration is necessary. The proposed approach is confirmed with experimental results.