| From: FJB | 1/19/2025 5:09:17 AM | | | | | | What is Hollow Core Fiber (HCF)? - LINK TO SITE IS MESSED UP
Hollow core fiber is a type of optical fiber that guides light through a hollow central core, as opposed to the solid glass or plastic core used in traditional optical fibers. This innovative design leverages a central air or vacuum-filled core surrounded by a structured cladding that uses photonic bandgap or anti-resonant guiding mechanisms to confine and transmit light.
Key Components:
Core: The central hollow region where light is transmitted. This core can be filled with air, vacuum, or sometimes other gases, depending on the application and design requirements.
Cladding: Surrounds the hollow core and is engineered to guide light through the core using photonic bandgap effects or anti-resonant reflecting mechanisms. The cladding is typically made of high-purity silica with a periodic structure that creates the necessary optical properties.
Protective Layers: Just like traditional optical fibers, hollow core fibers have protective coatings and buffer layers that protect the delicate internal structures from environmental damage, mechanical stress, and handling. These layers ensure the fiber’s durability and longevity in practical applications. |
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