[time-nuts] 10 MHz over optical fiber?

[Marco IK1ODO -2]

Hi all,

I have to carry a 10 MHz standard frequency signal inside an EMC 
screened room via fiber optic cable.

Not willing to re-invent the wheel, do something like an optical 
standard frequency link exist on the market?
I think it is possible to use standard 100MB LAN transceivers, and 
POF. Phase noise requirements
are not very stringent, and the distance is in the order of some tens 
of meters.

Marco IK1ODO / AI4YF