1 January 1993 Multichannel optical spectrum analyzer for laser Doppler signals, using a liquid crystal spatial light modulator
Author Affiliations +
Optical Engineering, 32(1), (1993). doi:10.1117/12.60065
Abstract
A novel optical signal processor has been developed for analyzing laser Doppler velocimeter output signals. Optical Fourier transform techniques are used to determine the spectrum of the laser Doppler signals, with a liquid crystal spatial light modulator used as the input device to the optical system. The optical Fourier transform is one dimensional, performed by an anamorphic lens system that performs a Fourier transform in the horizontal direction of the input plane while imaging in the vertical direction. The system is therefore capable of simultaneously analyzing multiple laser Doppler input signals. The capabilities of the system are demonstrated using both synthetic computer-generated input signals and "real" input data obtained from a laser Doppler velocimeter.
Tomoaki Eiju, Thomas H. Barnes, Kiyofumi Matsuda, Shigeru Kokaji, "Multichannel optical spectrum analyzer for laser Doppler signals, using a liquid crystal spatial light modulator," Optical Engineering 32(1), (1 January 1993). https://doi.org/10.1117/12.60065
JOURNAL ARTICLE
5 PAGES


SHARE
RELATED CONTENT

The CCD imaging systems for LAMOST
Proceedings of SPIE (June 29 2006)
Research of laser Doppler velocimetry based on DSPs
Proceedings of SPIE (November 27 2007)
Motion-Adaptive TV Data Compression
Proceedings of SPIE (December 24 1980)
Emergence of tactical framing infrared reconnaissance
Proceedings of SPIE (November 05 1998)

Back to Top