We have a bunch of very nice little Fujikura optical fiber splicers in house. It is my job this week to see that they are working-enough to sell. For the last two days I have been trying to get decent cleaves on optical fibers without a cleaver. Finally I have hit on a workable solution.
Trust me, this is BY FAR the best result I have found, and I tried at least a couple dozen different ways. NOTHING I have found is this easy and gives this-good a result, short of having a proper cleaving tool.
Note: this will get you close. A proper cleave angle is 0º with no chips or cracks. This got me single-digits or low double-digits cleave angles with only a few tries per fiber, which is close enough to tell if these arc fusion splicers work. It also was enough to make a joined fiber with a reasonable noise/transmission loss figure, according to the machine. If you have to join fibers that mean anything to your company for transmitting data, your company is stupid to do anything less than buy a cleaver. I’ll be done with this job before a cleaver would arrive in the mail though, so here I go DIY’ing it.
YMMV. Some practice is required. This is NOT as good as having a proper precision cleaving tool! Everything else I tried either shatters the fiber or has better-than-even odds of a nasty break instead of a neat cleaving.
*sorry, I wasn’t trying to be punny!