21 August 1987 Slm Inducd Phase Distortion And Its Effect On Optical Correlation
Author Affiliations +
Proceedings Volume 0754, Optical and Digital Pattern Recognition; (1987) https://doi.org/10.1117/12.939980
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States
A spatial light modulator (SLM) operating as an amplitude modulating input element in a coherent optical correlator introduces a certain amount of phase shift at each pixel. We examine the effect this has on the overall quality of the correlation signal, defined in terms of SNR and correlation peak full-width-half-maxi-mum (FWHM) response. An interesting and unexpected effect is found, namely that if the attendant phase distortion is properly incorpored into the reference function, it can greatly enhance the correlation signal.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joseph L. Horner, "Slm Inducd Phase Distortion And Its Effect On Optical Correlation", Proc. SPIE 0754, Optical and Digital Pattern Recognition, (21 August 1987); doi: 10.1117/12.939980; https://doi.org/10.1117/12.939980

Back to Top