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Photonic crystal fiber coupler
Optics Letters
|November 17, 2007
Summary
Researchers developed fiber couplers using photonic crystal fibers (PCF). Different PCF structures achieved distinct coupling ratios, demonstrating a versatile fabrication method for optical components.
Area of Science:
- Photonics
- Optical Engineering
- Materials Science
Background:
- Photonic crystal fibers (PCF) offer unique light-guiding properties.
- Fiber couplers are essential components in optical communication systems.
- Fabricating PCF-based couplers requires specialized techniques.
Purpose of the Study:
- To report the fabrication of fiber couplers using photonic crystal fibers.
- To investigate the relationship between PCF structure and coupling ratio.
- To present the fabrication processes and characteristics of PCF couplers.
Main Methods:
- Fabrication of two types of PCF by stacking silica tubes around a silica rod and drawing.
- Manufacturing fiber couplers using the fused biconical tapered method.
- Characterization of PCF structures and coupler performance.
Main Results:
- A fiber coupler fabricated with a five-layer hexagonal PCF achieved a 33/67 coupling ratio.
- A coupler made with a one-layer, four-hole PCF resulted in a 48/52 coupling ratio.
- Successful fabrication of PCF and PCF couplers was demonstrated.
Conclusions:
- Photonic crystal fibers can be effectively used to create fiber couplers.
- The structure of the PCF significantly influences the coupling ratio.
- The fused biconical tapered method is suitable for fabricating PCF couplers.
