Do you have a recomendation for each?
thanks
It all comes down to just how much you need to test. Google is your friend, and since I do not have personal experience with any of the products I am not going any farther than the overview below:
For a simple go/no-go test, you can get what is essentially a laser flashlight that will put visible light into the fiber from one end. It will not allow you to certify anything, just troubleshoot breaks. ~$100.
For power measurements, for multi-mode (thick) fiber you will spend anything from $2-400 up to thousands. Not exactly cheap.
The same thing for single-mode (thin) fibers which can run longer distances at higher speeds will cost twice as much.
You cannot go wrong with Fluke, but you will not find cheap there.