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Furcation Tubing, Sleeves, and Connector Caps![]() FTS61A Stainless Steel Sleeve CAPF Cap for Ø2.5 mm Ferrules, FT05SS Ø5.0 mm Stainless Steel Tubing FT061PS Ø6.1 mm Stainless Steel Tubing, CAPSM Metal Threaded Cap
FT023SS Ø2.3 mm Stainless Steel Tubing CAPX1 FC Plastic Connector Cap CAPF1 FC Metal Connector Cap ![]() Please Wait
Features
Furcation Tubing When selecting furcation tubing, please note its inner diameter, as this dimension must be larger than the outer diameter of the fiber you are using. Custom colors for furcation tubing are available. Additionally, as an alternative to jacketing your own fiber, Thorlabs offers custom pre-made patch cables. Please contact Tech Support for further information about Thorlabs' custom jacketing capabilities. Stainless Steel Furcation Tubing and Sleeves Fiber Connector Caps
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Thorlabs' offers a wide variety of Hytrel® furcation tubing with a 900 µm outer diameter. They are most commonly used as a jacket for single mode fiber because the inner diameter may be too small for many multimode fibers. Our FT900KY, FT900KB, and FT900KK tubing include Kevlar® threads to be used as a pull string when feeding optical fiber. The interior of the yellow FT900Y tubing is empty. The tubing can be removed after installation by using the AFS900 Adjustable Fiber Buffer and Jacket Stripping Tool. Thorlabs also offers the 190044P and 190044B Strain Relief Boots for covering connector ends when using Ø900 µm furcation tubing. Hytrel® is a registered trademark of DuPont Polymers, Inc. Kevlar® is a registered trademark of DuPont Safety & Construction, Inc. ![]()
Our Ø2.0 mm protective tubing provides more protection than Ø900 µm tubing and fits optical fiber up to 900 µm in diameter. It has an internal structure similar to our Ø3.0 mm tubing pictured below, including a PVC outer jacket, Kevlar® threads, a polypropylene inner protective tube, and a pull string for fiber insertion. It is ideal for constructing patch cables for optogenetics or any other application where a lightweight, flexible, and durable patch cable is needed. Feeding fiber through furcation tubing can be difficult, so the inner tube of the FT020(-BK) features a pull string to help guide the fiber. The furcation tubing can be removed from the fiber by using the AFS900 Adjustable Stripping Tool. We also offer connector boots and crimp sleeves to use Ø2.0 mm tubing with connectors. The 190066CP pack is for FC/PC-type connectors and the 190088CP pack is for SMA- or ST-type connectors. Our stock connectors do not include a boot compatible with Ø2.0 mm tubing. Please note that, due to the small size of this tubing, epoxy must be used after crimping a sleeve from the 190066CP or 190088CP packs to the tubing to ensure that it is properly secured to the tubing. For information on using this tubing with other connector styles, please contact Tech Support. These furcation tubings can be used with MM (orange standard) and SM (yellow standard) fiber. Additionally, the FT020-BK black furcation tubing is especially useful for preventing ambient visible light from entering the patch cable. For additional light blocking, the FT020-BK tubing can be placed inside FT05SS or FT061PS stainless steel tubing. ![]()
![]() Click to Enlarge Sleeve with Fiber Connector and Stainless Steel Tubing ![]() Click to Enlarge Sleeve Schematic Thorlabs' FT23SS Stainless Steel Tubing and FTS23x Sleeves provide a high degree of fiber protection. This thin, lightweight stainless steel tubing provides added protection for more rigorous optogenetics experiments. Its all-metal jacket also prevents visible and IR light from entering through the length of the patch cable. The FTS23x sleeves effectively replace the strain relief boot used with our standard furcation tubing and shield the connection from dust, dirt, and other external contaminants. Please refer to the Compatibility Guide table below to ensure the proper match between the fiber connector and sleeve. To create a fiber connection, our F112 or F123 Epoxy is used to secure the sleeve along the same central axis as the fiber connector, tubing, and bare fiber. Each sleeve is engraved with a part number ending in an A, B, or D that indicates the inner diameter of the connector side of the sleeve, as shown in the table below. When the fiber connector and tubing are fed into the sleeve, they each encounter a hard stop once they are completely inserted, making it easy to create reliable connections. The bare fiber can be fed directly into the tubing, which does not contain an inner tube, Kevlar® threads, or a pull string. Please note that the maximum continuous length we can provide for this tubing is 200 m.
![]() ![]() Click to Enlarge Components of Furcation Tubing
Thorlabs' FT030 and FT038 Furcation Tubings consist of an outer PVC jacket, Kevlar® protective threads, a polypropylene inner fiber tube, and a pull string for fiber insertion, as shown in the photo to the right. The Kevlar® threads that surround the inner tube protect the fiber from damage by cushioning any impact incurred by the PVC outer jacket. Feeding fiber through furcation tubing can be difficult, so the inner tubes of the FT030 and FT038 feature a pull string to help guide the fiber. The tubing can be removed from the fiber by using the FTS3 Stripping Tool and the T186 Kevlar® Cutting Shears. These furcation tubings can be used with SM (yellow standard), PM (blue standard), and MM (orange standard) fibers. Our FT030-BK and FT038-BK Black Furcation Tubing are especially useful for preventing ambient visible light from entering the patch cable. For additional light blocking, the FT030-BK tubing can be placed inside FT05SS or FT061PS stainless steel tubing. ![]()
![]() Click to Enlarge Sleeve with Fiber Connector and Stainless Steel Tubing ![]() Click to Enlarge Sleeve Schematic Thorlabs' FT05SS Stainless Steel Tubing and FTS50x Sleeves provide a high degree of fiber protection. The FT05SS is the same tubing used in our SMA Fiber Bundles. Its all-metal jacket prevents visible and IR light from entering through the length of the patch cable. The FTS50x sleeves effectively replace the strain relief boot used with our standard furcation tubing and shield the connection from dust, dirt, and other external contaminants. Please refer to the Compatibility Guide table below to ensure the proper match between the fiber connector and sleeve. To create a fiber connection, our F112 or F123 Epoxy is used to secure the sleeve along the same central axis as the fiber connector, tubing, and bare fiber. Each sleeve is engraved with an A, B, or D that corresponds to the suffix of the part number and indicates the inner diameter of the connector side of the sleeve, as shown in the table below. When the fiber connector and tubing are fed into the sleeve, they each encounter a hard stop once they are completely inserted, making it easy to create reliable connections. The bare fiber can be fed directly into the tubing, which does not contain an inner tube, Kevlar® threads, or a pull string. If desired, the fiber can be fed into our FT030 tubing (which does feature a pull string) before being put into the stainless steel tubing for added convenience and protection. Please note that the maximum continuous length we can provide for this tubing is 100 m.
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![]() Click to Enlarge Sleeve with Fiber Connector and Stainless Steel Tubing ![]() Click to Enlarge Sleeve Schematic Thorlabs' FT061PS Stainless Steel Tubing and FTS61x Sleeves provide a high degree of fiber protection. The FT061PS has a black plastic coating (olefin elastomer) that is lead-free, halogen-free, and provides chemical, water, and heat resistance. The black coating and all-metal jacket prevent visible and IR light from entering through the length of the patch cable. The FTS61x sleeves effectively replace the strain relief boot used with our standard furcation tubing and shield the connection from dust, dirt, and other external contaminants. Please refer to the Compatibility Guide table below to ensure the proper match between the fiber connector and sleeve. To create a fiber connection, our F112 or F123 Epoxy is used to secure the sleeve along the same central axis as the fiber connector, tubing, and bare fiber. Each sleeve is engraved with an A, B, or D that corresponds to the suffix of the part number and indicates the inner diameter of the connector side of the sleeve, as shown in the table below. When the fiber connector and tubing are fed into the sleeve, they each encounter a hard stop once they are completely inserted, making it easy to create reliable connections. The bare fiber can be fed directly into the tubing, which does not contain an inner tube, Kevlar® threads, or a pull string. If desired, the fiber can be fed into our FT030 tubing (which does feature a pull string) before being put into the stainless steel tubing for added convenience and protection. Please note that the maximum continuous length we can provide for this tubing is 100 m.
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![]() Click to Enlarge Sleeve with Fiber Connector and Stainless Steel Tubing ![]() Click to Enlarge Sleeve Schematic Thorlabs' FT080SS Stainless Steel Tubing and FTS80x Sleeves provide a high degree of fiber protection. The FT080SS is the same tubing used in our MZ6x series fluoride fiber patch cables. Its all-metal jacket prevents visible and IR light from entering through the length of the patch cable. The FTS80x sleeves effectively replace the strain relief boot used with our standard furcation tubing and shield the connection from dust, dirt, and other external contaminants. Please refer to the Compatibility Guide table below to ensure the proper match between the fiber connector and sleeve. To create a fiber connection, our F112 or F123 Epoxy is used to secure the sleeve along the same central axis as the fiber connector, tubing, and bare fiber. Each sleeve is engraved with a part number ending in an A, B, or D that indicates the inner diameter of the connector side of the sleeve, as shown in the table below. When the fiber connector and tubing are fed into the sleeve, they each encounter a hard stop once they are completely inserted, making it easy to create reliable connections. The bare fiber can be fed directly into the tubing, which does not contain an inner tube, Kevlar® threads, or a pull string. If desired, the fiber can be fed into our FT030 tubing (which does feature a pull string) before being put into the stainless steel tubing for added convenience and protection. Please note that the maximum continuous length we can provide for this tubing is 10 m.
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The FTSB1 Stainless Steel Sleeve fits fiber outer diameters up to 720 µm, such as polyimide-coated fiber. It is intended to be used with our high-temperature SMA905 multimode connectors and can withstand environments with temperatures up to 250 °C or vacuum down to 10-10 Torr. ![]()
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Please note that due to supply chain disruptions resulting from COVID-19, we are currently unable to provide a definitive lead time for new order requests for our CAPF1 Metal Cap and Chain. Our order fulfillment team will confirm a shipment date once we have more clarity around when there will be sufficient inventory to fulfill new requests. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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