Fiber proof testers are designed to apply a set load to optical fiber proof-testing machine in order to test the effectiveness of the spliced fiber. Our fiber proof testers can be purchased in both linear and rotary designs, for both proof and tension testing. Fiber proof testers are available for single mode, multimode, and polarization-maintaining fibers. Select from dedicated, standalone systems or multi-purpose designs which are also competent at stripping, cleaning, cleaving, splicing, and recoating.

Fiber Recoaters with Proof Testers offer easy, integrated solutions to recoat and test fusion-spliced fibers. The fiber recoating process restores the buffer coating to some stripped fiber, offering more flexibility compared to a heat-shrink protection sleeve, enabling it to be handled and coiled with no damage to the fusion-spliced section. The integrated linear or rotary proof tester allows users to right away test a recoated fiber having a pre-determined load and determine the long-term longevity of the fiber. Because of their ability to restore a fusion-spliced fiber to near original condition, these systems are perfect for applications including undersea optical fiber cables, submarine communication cabling, fiber lasers, or Distributed Bragg Reflector (DBR) lasers.

The procedure starts with the fusion-spliced section of fiber being placed in the middle of the mold assembly (see image to the right). Once set in position, inserts in the fiber blocks secure the spliced fiber in position. Recoat material is pumped in to the cavity and after that UV-cured. The recoated fiber can then be tested by pulling onto it up to a pre-determined load.

Recoater and Mold Assembly Options – Recoaters are available with either an automated or manual mold assembly. The automatic mold assembly features pneumatic charge of the mold plates and is also optimized for top-volume manufacturing applications. Manual mold assemblies, on the contrary, use hinged mold plates which provide more flexibility and are best for low-volume manufacturing or R&D applications. An automated or manual volumetric dispensing pump and injection method is employed to inject the recoat material in to the mold cavity.

The PTR208 automatic recoater comes standard with a mold assembly for optical fiber proof-testing machine; For our manual recoaters (Item #s PTR206, PTR206B, PTR307, and PTR307B), the mold assembly comes separately to ensure that customers can select the right mold coating diameter for their application. Custom mold coating sizes can be found approximately Ø900 µm. Pre-installation of the mold assembly in the factory is also available. Contact Tech Support to learn more about custom molds or factory assembly.

We offer both high-index (Item # AB950200) and low-index (Item # PC373) recoat materials to be used within these recoaters. Recoaters with manual injection pumps (Item #s PTR206B and PTR307B) are suitable for both types of recoat material; other recoaters are suitable for the top-index material only. Our manual recoaters with an automatic injection system (Item #s PTR206 and PTR307) can be customized to do business with the low- and-index recoat material; please contact Tech Support for additional information.

Proof Tester Options – The PTR206, PTR206B, and PTR208 Fiber Recoaters include an integrated linear proof tester, which takes the fiber up to a predetermined load (20 N) then releases it. The linear proof tester uses uojthk same fiber holding blocks as the recoater and therefore the fiber will not must be moved prior to testing. The PTR307 and PTR307B Fiber Recoaters have an integrated rotary proof tester, which can perform both proof and tension tests (?89 N). One set of proof test grips is included; replacement proof test grips can be purchased below in packs of 10. Each testing process is fully programmable through the included handset or tablet controller, allowing an individual to select parameters including the load, the rate where the load is applied, and also the hold time.

Inserts for Fiber Holding Blocks – As well as the above, we offer a variety of inserts to be used inside the fiber holding blocks of the recoaters in order to support an array of secondary coating line. For recoaters with a rotary proof tester, the inserts are suitable for fiber coating diameters in a vary from 125 µm to 900 µm. For recoaters with a linear proof tester, the inserts cover a range for fiber coatings from Ø250 µm to Ø900 µm.