Telephone and fibre optic cables.

Telephone and fibre optic cables.

T350/0488 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 41.6MB

Downloadable file size: 5.3MB

Price image Pricing

Please login to use the price calculator


Credit: PHILLIP HAYSON/SCIENCE PHOTO LIBRARY

Caption: Fibre optics. Telephone handset and a cable containing optical fibres. A telephone works by converting sound waves into electrical signals. These signals are then converted back into sound by the receiving telephone. The increasing number of telephone calls has required the use of high- volume transmission equipment such as optical fibres. The telephone's electrical pulses are converted into light at an exchange and sent down optical fibres. The optical fibres have a core of flexible glass covered in a protective coating. The difference in the refractive indexes of the core and coating means that the cable internally reflects light with little absorption.

Release details: Model release not required. Property release not required.

Keywords: cable, communication, communications, fibre optic, fibre optic cable, fibre optics, light guide, optical fibre, optical fibres, technology, telephone

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.