It does? I don't think I follow. In your list of components, every single one of those is, at least in the US, largely or almost entirely handled by private companies.
The big semiconductor companies are private. I actually don't think there are any notable public entities that make their own chips. Hardware companies (I'm assuming you're talking about things like motherboards, routers, switches, etc) are private. Fiber optics/communications/networks are laid almost entirely by private telecom companies (and there's actually a big push to take this away from private companies and make ISPs be government entities). The article that you're commenting on is all about a private entity investing money into laying fiber and improving the protocols that communicate over it.
>I have rarely seen a start up on improving optical fiber or electronic chips.
There are a lot of SMBs working on chip design. I'm less familiar with fiber, but a quick google shows at least a couple, all private.