Fibre-optic cable treatment

You don't say if the fiber is a silica based or plastic based material. Neither do you say which wavelength you are transmitting at. Both of these will have an effect on the coating to be chosen because the refractive index is dependant on both wavelength and material. When you say "blade" cut fiber, is this with some sort of a saw that is cutting the entire cable, or some variation on fiber cleaving which is done on the fiber alone. There are a number of index matching gels on the market. Have a look at www.fiberinstrumentsales.com part no F1-0001V or part number 9006.

Testing, repairing & Matching and Treatment of Fibre Cables need lot of Professional Test & Finishing Tools. It is suggested not to try if donot have these Pro Facillities.