Page 569 - Introduction to Information Optics

554 9. Computing with Optics

SLMl SLM2 Lens Scatterer Decoding
Light
Source

(a)

output output
Si= 2 S| = 3 2 T
Sum Cany final sum

(c)

Fig. 9.27. (a) Incoherent correlator-based optoelectronic shared- CAM processor unit, (b) and (c),
Shared-CAM patterns for simplified two-step QSD addition.

pattern shown in Fig. 9.27(b), two separate channels are employed to encode

and

for yielding the negative and positive outputs, respectively. In this example,
N = 4 and M = 0. In channel 1, the digit combinations a 36 3, a 2h 2, a^,, a 0b 0