How to Terminate Fiber Optic Cables?

Since the late 1970s, various connectors and termination methods have been brought to market. Now in the common case, cables are terminated in two ways: use connectors to make two fibers jointed or to connect the fiber to other network gears; use splices to make a permanent joint between two fibers. And for the former method, you may have little confusions to deal with it. So today this paper will teach you how to terminate by taking an example of fiber optic cable using epoxy.

First and foremost, use a proper fiber stripper to carefully slide the jacket off of the fiber to a bare fiber. When you are doing this, be careful that try to avoid breaking the fragile glass fiber. After that, mix the epoxy resin and hardener together and load it into a syringe (If you use the pre-loaded epoxy syringes that are premixed and kept frozen until use, then you don’t do that). And next you must inject the epoxy from the syringe directly into the connector ferrule.

Fiber Stripping Tool

Once you have well prepared the epoxy for your connector, you can insert the fiber cable gently into the terminus inside the connector wall and make the bare fiber core stick out about a half an inch from the front of the ferrule. In the case that your cable is jacketed, you may need a crimping tool, such as Sunkit Modular Crimping Tool, to secure the connector to the jacket and strength the cables. Usually two crimp tools would be perfect to this operation.

Next, you can just wait the epoxy to cure. During this process, in order to make sure the end of the fiber is not damaged while curing, you should place the connected end in a curing holder. And when this is done, just place the cable and curing holder into a curing oven. But you may worry about “wicking” while curing with a conventional oven. All you have to do to avoid that is to make the end face down, which can ensure the epoxy does not come out of the back side of the connector and compromise the strength member of the cable. Remember: your epoxy curing must in accurate times and temperatures.

After the epoxy cured sufficiently, fiber cleaver tools will be in use to cleave the excess protruding fiber core so that it could make the fiber close as much as possible to the ferrule tip in case of fiber twisting. Once cleaved, you have to dispose of the fiber clipping. There is a point you should think highly of that you must use a regular piece of tape to retain your fiber debris, or they will easily end up in your skin or even in your eyes or respiratory system.

High Precision Fiber Optic Cleaver

When you finished the fiber cleaved work, you could need fiber polishing tool to remove the excess epoxy from the ferrule tip and buff out any imperfections on the surface of the fiber. A smooth fiber surface can help to reduce the loss of the light. Last, if you have done all the above work, you may move on to the cleaning of the ferrule and fiber tip. After that, the whole termination procedure is done.

If you want to terminate your fiber optic cables by hands, you can follow the above steps. But before you get down to it, you must prepare the tools first that I have mentioned in this paper. All these tools can be found in Fiberstore with good quality and low price. In addition, Fiberstore also can provide the termination tool kits that may be helpful to you. For more details, you could visit

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Fiber Optic Cleaver Needed In Fiber Optic Cleaving

If you have never done cable splicing and are just beginning to build your fiber optic link, it is recommended to start out with our fiber splicing kit, which is a great starting point for your fiber installation.

Optical fiber fusion splicing always requires that the fiber tips have a smooth end face that is perpendicular to the fiber axis. The cleave quality is very important in determining the fusion splicing loss. This is especially true for specialty fibers such as erbium-doped fibers and dispersion-compensating fibers.

Fiber optic cleaving is the process to scribe and break an optical fiber endface. Fiber optic technicians need some training in order to gain the skills necessary for best possible results.

The goal of fiber cleaving is to produce a mirror like fiber endface for fiber splicing – either fusion splicing or mechanical fiber splicing. Incorrect or pool cleaving techniques will result in lips and hackles which makes good fiber splicing impossible. A bad cleaving usually has to be redone.

The tools needed for fiber cleaving are called fiber optic cleaver or fiber cleave tools. There are two types available on the market: high precision fiber cleaver and field fiber cleaver.

The design of fiber optic cleavers varies among manufacturers such as AFL, Corning, Fujikura or York. But the working principle is the same. Here I describe a typical work flow of optical fiber cleavers.

Step One: Strip the fiber to its cladding size, the standard optical fiber cladding size is 125um. The strip length depends on your application.

Step Two: Clean the fiber with lint-free wipes moistened with isopropyl alcohol.

Step Three: Place the stripped and cleaned bare fiber into the fiber cleaver

Step Four: Scribe the bare fiber with either a cutting wheel or a blade

Step Five: Break the fiber with the built-in mechanism on the cleaver

Step Six: Remove the fiber scrap and put it into a fiber disposal unit

This semi-automated process produces high quality cleaving in minimum steps. It has been used widely in the fiber optic communication industry.

FiberStore provides a complete line of cables, connectors, termination tools, and test equipments for installing and testing fiber optic network. It’s important to make sure you have the proper set of fiber optic tools to working with your fiber optics. At FiberStore, they carry a wide selection of fiber tools, just about every tool needed to successfully install, terminate and test the fiber you’ve installed. Some of the essential fiber tools to have would be a fiber tester, fiber stripper, telephone line tester, fiber optic cleaver, tool kits and other tools.