Strip, clean, cleave

phraseShop talkFiber Optics

The three-step fiber prep routine done before every splice or splice-on connector.

Strip the coating off the end of the fiber with a precision stripper, wipe the bare glass with lint-free wipes and high-purity isopropyl alcohol until it squeaks, then cleave it to length. The order never changes, and once the fiber is clean the bare glass must not touch fingers, the bench or anything else before it goes into the splicer. Most bad splices trace back to shortcuts in this routine.

Heard on the job

Strip, clean, cleave, and don't touch the glass, if you drop it on the tray you start over.

Insider tip

Never wipe a fiber after cleaving: the wipe can chip the fresh edge or leave lint on the end face.

Also heard as

  • fiber prep
  • prep