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Saturday, August 4, 2007
What are Fiber Optics?
Fiber optics are long, thin, strands of pure glass about the same diameter as the human hair. They are used to transmit light over long distances and arranged in bundles called optical cables.
What are its parts?
Core -Thing glass center where light travels
Cladding -Outer optical material that surrounds the core and reflects light back into it
Buffer coating -Plastic coating which protects the fiber from moisture and being damaged
What are its types?
Single-Mode -Have small cores and transmit infrared laser lights.
Multi-Mode -Have larger cores and transmit infrared light from light-emitting diodes.
How does it transmit light?
The light in an optical cable travels by constantly bouncing from the cladding; total internal reflection. Since the cladding doesn't absorb any light from the core, the light can travel great distances.
So, I guess, I'm done with all the required posts before the upcoming periodic exams... Gotta go, gotta read my Physics book, gotta study, gotta pass the long test... I really have to!
posted by Karen Ann Labsan at 2:09 AM
... DROP DEAD ...
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