optical fibres
preferred label: الیاف نوری @fa
type: Concept
related: optical communications

telecommunications
preferred label: ارتباطات دوربرد @fa
type: Concept
narrower: optical communications

space communications
preferred label: ارتباطات فضایی @fa
type: Concept
related: optical communications

optical communications
type: Concept
alternative label: COMUNICACIONES VISUALES
related: infrared radiation
related: ultraviolet radiation
related: optical fibres
related: lasers
related: space communications
broader: telecommunications
preferred label: ارتباطات نوری @fa

infrared radiation
preferred label: تابش فروسرخ @fa
type: Concept
related: optical communications

ultraviolet radiation
preferred label: تابش فرابنفش @fa
type: Concept
related: optical communications

lasers
preferred label: لیزرها @fa
type: Concept
related: optical communications