Bundle of optical fibres behind a telephone cable
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Bundle of optical fibres behind a telephone cable
Optical fibres. A bundle of optical fibres behind a telephone handset cable. The end of the optical fibres are bright indicating that light is travelling through them. Optical fibres are made of flexible glass fibres coated with a protective coating. The glass has a high refractive index (RI) but the coating has a low RI. This will mean that light emerging from the glass will be refracted so much it will totally internally reflect. The light will thus travel through the cable with little or no absorption. Optical fibres have great value in telecommunications. This is because signals can travel vast distances through optical fibres without needing any boost
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6437581
© STEVE HORRELL/SCIENCE PHOTO LIBRARY
Communication Communications Fibre Optics Light Guide Optical Fibre Optical Fibres
EDITORS COMMENTS
This print showcases a bundle of optical fibres behind a telephone cable, revealing the fascinating world of fiber optics. The image captures the end of the optical fibres, which emit a brilliant glow indicating the transmission of light through them. These remarkable fibres are composed of flexible glass fibers coated with a protective layer. The glass fibers possess an exceptionally high refractive index (RI), while their coating has a significantly lower RI. This intriguing combination allows for an extraordinary phenomenon: when light emerges from the glass, it undergoes such intense refraction that it completely internally reflects within the fiber. As a result, light can traverse through these cables with minimal or no absorption. Optical fibres have revolutionized telecommunications due to their immense value in transmitting signals over vast distances without requiring any amplification. Their ability to guide and transmit light efficiently has transformed communication technology as we know it. In this visually stunning print by Science Photo Library, we witness not only the beauty but also the incredible functionality behind these optical wonders. It serves as a reminder that beneath our everyday devices lies an intricate network of advanced technology enabling seamless communication across great distances – all thanks to these unassuming bundles of optical fibres.
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