A technique for the fabrication of a direct fiber-fiber directional coupler which transfers a desired fraction of the power from one single-mode fiber to another while preserving propagation direction and is the fiber-optic analogue of an optical beam splitter or a microwave long-slot directional coupler is presented.
- Polarization independence
- High directivity
- High stability and durability
- Long-haul telecommunications
- Digital, Hybrid and AM-Video Systems
- High speed local area networks
- CATV System
