Small Angle Measurement by Use of a Nonlinear Optical Feedback System

Yoshihito Yuasa; Hirotsugu Yamamoto; Yoshio Hayasaki; Nobuo Nishida

doi:10.11499/sicep.2002.0.19.0

SICE Annual Conference 2002

DOI https://doi.org/10.11499/sicep.2002.0.19.0

Conference information

Host: The Society of Instrument and Control Engineers

Co-host: IEEE/Industiral Electronic Society, IEEE/Robotics and Automation Society, IEEE/Control System Society

Small Angle Measurement by Use of a Nonlinear Optical Feedback System

Yoshihito Yuasa, Hirotsugu Yamamoto, Yoshio Hayasaki, Nobuo Nishida

Author information

Keywords: spontaneously optical pattern formation, spatial light modulator, angle measurement nonlinear optics

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 19

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Abstract

Optical pattern formed spontaneously in a nonlinear optical feedback system composed of an optically addressable spatial light modulator and optical feedback flows due to lateral wave-front shift of the feedback light We propose to use this phenomenon to measure as a small angle, because a rotation of mirror produces the shift. We demonstrate the dependency between pattern speed and rotation angle.

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