Lanir-tec Ltd.

Fiber Optics page include- Cables, Components, Devices and Instruments

FiberControl(USA)- http://www.fibercontrol.com
FiberControl's Polarization Controller’s unique user-friendly design utilizes stress-induced birefringence to alter and control the state-of-polarization of light in single-mode fibers. 

S,I.Tech(USA) - http://www.sitech-bitdriver.com/

S.I. Tech manufactures fiber optic communication devices such as modems (media converters), multiplexers, repeaters, hubs, and cable assemblies for LAN, WAN, MAN, and Industrial Control Systems. Many of these devices convert electrical signals to light, allowing data to be transmitted over fiber optic cabling. This enables data to be transmitted farther, reduces EMI/EMR interference, and provides for secure communications