Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Disciplines (hierarchy name)
4. disciplines (concept)
5. [science and related disciplines]
6. science (modern discipline)
7. natural sciences
8. physical sciences
9. physics
10. optics

Anotations

Scope note:

Branch of optics that deals with the transmission of light through glass or plastic; has particular application in the transmission of textual data or images. For the actual glass or plastic that transmits light, see "optical fiber."