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Fiber in a body of water.

What manufacturers make jet plows or similar technology to help bury fiber in a water bed that is not very deep, like less than 5 meters?

SuperUser
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Re: Fiber in a body of water.

You should just be able to lay drop fiber in the water along the bottom unless boats would cut them.  

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Re: Fiber in a body of water.

Aerial fiber will survive in the water.

Boats but more important their ankers or fishing nets can damage the fiber

If the acid water eats away said boats the cable won't survive either.

And sharks.  Never underestimate them.

 

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Re: Fiber in a body of water.

I'm interested in burying the fiber under the riverbed, the other parts about the kind of fiber cable are already figured out.

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Re: Fiber in a body of water.

That's a really specialized application - most cable river/creek crossings are done at an exiating bridge or even with a suspended pipe/conduit across the water.   There are a lot of things that can go wrong with a water crossing, including disturbances at the water's edge by people or animals, dredging, fishing.boating (as already mentioned), etc.   Even pipelines are usually built to suspend over a bridge so that this is not an issue.   The only large under-river crossings I'm familiar with are either so deep that they go below any saturated soil (done with large horizontal drilling) or inside tunnels that go under the river to start with (think New York City).

 

The only commercial underwater plow systems I'm familiar with are for trans-oceanic cables, and that's not what you are looking for, I'm pretty sure.   If it were me and I absolutely had to do things this way I would look for a way to build a conduit on the river bottom with a plastic/steel duct system to protect the cable - maybe something like this  - https://frecompositesinc.com/products/epoxies/underwater.html

Jim

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SuperUser
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Re: Fiber in a body of water.

Depending on the distance, a horizontal, directional drill is usually the easiest way to bury. 

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