4 ms·
But that's the problem: how does the "output" of one of these switches drive the "input" of the next one?
by dtgriscom 4y ago
But that's the problem: how does the "output" of one of these switches drive the "input" of the next one?
- adrian_b 4y agoThe question was how to make logic gates. There is no impediment for making a complex logic gate by an arbitrary series-parallel connection of the output light beams. The output of such a logic gate cannot be connected to the input of an identical logic gate, because the input and the output light beams have different frequencies. This is a problem common for many kinds of optical switches. It is likely that any conversion circuit that could be inserted between two such logic gates would be much slower than them, negating any speed advantage. This does not really matter, because such optical switches are not intended for making logic circuits.