FC/APC Fiber Connectors: Single Mode |
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Fiber Connector Selection Guide
Single Mode
Multimode
FC/PCFC/APCST/PCLC/PC
FC/PC (SS Ferrule)FC/PC (Ceramic Ferrule)FC/APCSMA905ST/PC
Bare Ferrules
Bare Fiber Terminator
Stock Patch Cables Availablewith Connectors Sold on This Page
Single Mode
Polarization-Maintaining
FC/APCHybrid ConnectorsAR-CoatedBS-CoatedMirror-Coated
FC/APCHybrid ConnectorsAR-CoatedMirror-Coated
Features
FC/APC Connectors with 2.0 mm Narrow Keys
Screw-In Connector for High Stability
8° Pre-Angled, Spring-Loaded, Ø2.5 mm, Ceramic Ferrules
Strain Relief Boot for Ø3.0 mm or Ø900 µm Tubing and Connector Cap Included
Threaded FC/APC connectors are designed for high-vibration environments and minimal back reflections. The "APC" stands for "angled physical contact" because these connectors allow the surfaces of two connected fibers to be in direct contact with each other and because the fiber end is polished at an angle to prevent reflected light from traveling back up the fiber. These FC/APC connectors have an 8° pre-angled ceramic ferrule, which when properly polished, results in a typical return loss of 60 dB. Each connector package includes a fiber connector cap and plastic boot. These connectors also feature a low 0.25 dB connector-to-connector typical loss. However, significant insertion loss can result when mating to different styles, and because of this, we recommend that FC/APC connectors be mated only with other FC/APC connectors. If your application requires that you switch connector types, we recommend using a hybrid patch cable. As an alternative to buying and assembling separate optical fiber, connectors, and furcation tubing, Thorlabs also offers pre-built patch cables from stock using the connectors sold on this page. See the table to the right and the Patch Cables tab for a listing of patch cables available that incorporate connectors sold on this page. Fiber Type Patch Cable Type Connectors Fiber Wavelength Range Single Mode Standard FC/APC FC/APC to FC/APC 320 - 2100 nma Hybrid Connectors FC/PC to FC/APC orFC/PC to SMA905 320 - 2100 nma AR-Coated FC/PC to FC/PC,FC/APC to FC/APC, orFC/PC to FC/APC 320 - 2100 nma BS-Coated FC/PC to FC/PC orFC/APC to FC/APC 1260 - 1620 nm Reflective-Coated FC/PC or FC/APC 970 - 1620 nma Polarization-MaintainingSingle Mode Standard FC/APC FC/APC to FC/APC 405 - 2000 nmb Hybrid Connectors FC/PC to FC/APC 405 - 2000 nmb AR-Coated FC/PC to FC/PC orFC/PC to FC/APC 620 - 1620 nmb Reflective-Coated FC/PC or FC/APC 970 - 1550 nm This is the wavelength range covered by multiple fibers. PM patch cables are aligned at discrete wavelengths in this range, based on the fiber type. Stock Patch Cables Available with These ConnectorsAs an alternative to buying and assembling separate optical fiber, connectors, and furcation tubing, Thorlabs offers pre-built patch cables from stock using the connectors sold on this page. Stocked patch cables are available with single mode or polarization-maintaining single mode optical fiber, as indicated by the table to the right. Additionally, Thorlabs offers Custom Patch Cables with same-day shipping, which can be constructed using the connectors sold on this page. Posted Comments:bryden.quirk (posted 2017-06-01 13:11:51.13)Hi i,m having some trouble getting reliable connections with these connectors the insertion loss seems to increase significantly if the connector is screwed on too tightly or too loosely and is only acceptable with vary careful adjustment each time the connector is mated This seems to happen regardless of whether or not a radius is polished onto the ferrule I am visually inspecting the end face using an inspection scope and all-so using a Telesto OCT system to inspect for undercutting of the fiber. Do you have any suggestions ?nbayconich (posted 2017-06-14 09:48:21.0)Thank you for contacting Thorlabs. It is possible that the key is misaligned between the connector and key slot. I will contact you directly about your application.mjburek (posted 2015-07-30 17:53:06.67)Is it possible to buy the green or white fiber ferrule dust caps which are included with single mode fiber patch cords, instead of the clear plastic dust caps sold in packs of 25? Those which come with the single mode fibers have the molded attachment to the fiber, but these often break after extended us and we'd like to replace them.besembeson (posted 2015-09-24 09:34:23.0)Response from Bweh at Thorlabs USA: Yes you can. I will follow-up with you. |
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