Abstract

We present a general analytical treatment of optical correlation in correlators that use pixellated spatial light modulators with transmissive (or reflective) dead zones in both the input and filter planes. The active areas of the pixels modulate the light intensity while the dead zones transmit (or reflect) all of the light. Our model can predict the changes in the correlation peak and the signal-to-noise ratio with changes in dead zones, calculated in Part I [Appl. Opt. 32, 6527 (1993)] from computer simulations. This model is also a general one: It applies to correlators in which one spatial light modulator contaions only opaque dead zones while the other contains only transmissive dead zones; it also applies to the case in which any one spatial light modulator contains both opaque and transmissive dead zones.

© 1993 Optical Society of America

General treatment of spatial light modulator dead-zone effects on optical correlation. I. Computer simulations

P. D. Gianino and C. L. Woods
Appl. Opt. 32(32) 6527-6535 (1993)

Effects of spatial light modulator opaque dead zones on optical correlation

P. D. Gianino and C. L. Woods
Appl. Opt. 31(20) 4025-4033 (1992)

Effects of dead zones in multiple-quantum-well binary-phase modulators on optical interconnections

Hanni Inbar and Mohammad R. Taghizadeh
Appl. Opt. 37(5) 912-920 (1998)

Analysis of spatial light modulator contrast ratios and optical correlation

Peter D. Gianino, Charles L. Woods, and Joseph L. Horner
Appl. Opt. 34(29) 6682-6694 (1995)

Optical correlator using very-large-scale integrated circuit/ferroelectric-liquid-crystal electrically addressed spatial light modulators

Richard M. Turner, David A. Jared, Gary D. Sharp, and Kristina M. Johnson
Appl. Opt. 32(17) 3094-3101 (1993)