Fiber optics

Fiber coupler

How Are Fused Fiber Optic Couplers Made & How Do They Work: http://www.fs.com/blog/how-are-fused-fiber-optic-couplers-made-how-do-they-work.html

Multipoint/Manypoint box (PTB)

Eavesdropping time and frequency: phase noise cancellation along a time-varying path, such as an optical fiber: { :groups:mg:ol-39-9-2545.pdf |}}