Fibertronics offers fiber optic couplers/splitters. These are availabe in Single Mode or Multimode. Splitters with a defined split ratio from one or two input fibers to 2 output fibers. The available split counts are 1x2 and 2x2 or 1x4 1X8 in split ratios of: 50/50, 40/60, 30/70, 20/80, 10/90, 5/95, 1/99, 60/40, 70/30, 80/20, 90/10, 95/5, and 99/1. Dual Window Couplers are availble with 900µm loose tube single mode fiber or 250µm bare fiber and terminated or unterminated as per your needs. Unconnectorized DWC's come with no connectors for easy splicing or connectorization. Connectorized DWC's are available with your choice of Fiber Optic Connectors: LC/UPC, LC/APC, SC/UPC, SC/APC, FC/UPC, FC/APC, and ST/UPC.