this post was submitted on 01 Jul 2023
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Microsoft's light-based computer marks 'the unravelling of Moore's Law' (www.pcgamer.com)
submitted 2 years ago by L4s to c/technology
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Presenting its findings as "Unlocking the future of computing" Microsoft is edging ever closer to photon computing technology with the Analog Iterative Machine (AIM). Right now, the light-ba

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[–] [email protected] 1 points 2 years ago (1 children)

Optical components are already used in some parts of servers, in interconnects. But I don't expect them to replace silicon for general purpose processing ever. One thing that's never noted in these scientific press releases is that optical components are huge. The wavelength of light is about a micron, i.e. a thousand times larger than the feature sizes of silicon electronics. This limitation can't be easily overcome.

[–] [email protected] 3 points 2 years ago (2 children)

The wavelength of light is about a micron, i.e. a thousand times larger than the feature sizes of silicon electronics. This limitation can’t be easily overcome.

"Can't easily be overcome" is true but it's worth bearing in mind that the features in silicon electronics you're referring to are actually etched by light in many cases. There may be ways to cheat, even if it doesn't sound intuitive.

[–] kook 1 points 2 years ago

Yes, and those light etching machines (EUV) cost about $150m for full package from ASML. There’s feasible and then there’s viable.