Real-time parallel optical logic operation using photorefractive two-wave mixing and fringe-shifting techniques

Haiying Xu; Yang Yuan; Kebin Xu; Yueguang Lu

doi:10.1364/AO.31.001769

Applied Optics
Vol. 31,
Issue 11,
pp. 1769-1773
(1992)
•https://doi.org/10.1364/AO.31.001769

Real-time parallel optical logic operation using photorefractive two-wave mixing and fringe-shifting techniques

Haiying Xu, Yang Yuan, Kebin Xu, and Yueguang Lu

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Haiying Xu, Yang Yuan, Kebin Xu, and Yueguang Lu, "Real-time parallel optical logic operation using photorefractive two-wave mixing and fringe-shifting techniques," Appl. Opt. 31, 1769-1773 (1992)

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Abstract

The coupling effect between phase and intensity in photorefractive two-wave mixing in a Bi₁₂SiO₂₀ crystal is demonstrated. By using interference fringe-shifting techniques that are executed by a Mach–Zehnder interferometer, an optical parallel logic operation system that is based on the coupling effect is implemented.

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A	B	and	A $\bar{B}$	A	ĀB	B	xor	or	nor	$\bar{X O R}$	$\bar{B}$	A + $\bar{B}$	Ā	Ā + B	nand	T
0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1
0	1	0	0	0	1	1	1	1	0	0	0	0	1	1	1	1
1	0	0	1	1	0	0	1	1	0	0	1	1	0	0	1	1
1	1	1	0	1	0	1	0	1	0	1	0	1	0	1	0	1

A	B	and	A $\bar{B}$	A	ĀB	B	xor	or	nor	$\bar{X O R}$	$\bar{B}$	A + $\bar{B}$	Ā	Ā + B	nand	T
0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1
0	1	0	0	0	1	1	1	1	0	0	0	0	1	1	1	1
1	0	0	1	1	0	0	1	1	0	0	1	1	0	0	1	1
1	1	1	0	1	0	1	0	1	0	1	0	1	0	1	0	1

A	B	and	A $\bar{B}$	A	ĀB	B	xor	or	nor	$\bar{X O R}$	$\bar{B}$	A + $\bar{B}$	Ā	Ā + B	nand	T
0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1
0	1	0	0	0	1	1	1	1	0	0	0	0	1	1	1	1
1	0	0	1	1	0	0	1	1	0	0	1	1	0	0	1	1
1	1	1	0	1	0	1	0	1	0	1	0	1	0	1	0	1

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Applied Optics

A	B	and	A $\bar{B}$	A	ĀB	B	xor	or	nor	$\bar{X O R}$	$\bar{B}$	A + $\bar{B}$	Ā	Ā + B	nand	T
0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1
0	1	0	0	0	1	1	1	1	0	0	0	0	1	1	1	1
1	0	0	1	1	0	0	1	1	0	0	1	1	0	0	1	1
1	1	1	0	1	0	1	0	1	0	1	0	1	0	1	0	1