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  2. Optical wireless communications - Wikipedia

    en.wikipedia.org/.../Optical_Wireless_Communications

    Optical wireless communications. (Redirected from Optical Wireless Communications) Optical wireless communications ( OWC) is a form of optical communication in which unguided visible, infrared (IR), or ultraviolet (UV) light is used to carry a signal. It is generally used in short-range communication.

  3. Fiber-optic communication - Wikipedia

    en.wikipedia.org/wiki/Fiber-optic_communication

    Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of infrared or visible light through an optical fiber. [ 1][ 2] The light is a form of carrier wave that is modulated to carry information. [ 3] Fiber is preferred over electrical cabling when high bandwidth, long distance, or immunity ...

  4. 25-pair color code - Wikipedia

    en.wikipedia.org/wiki/25-pair_color_code

    Violet is the standard name in the telecommunications and electronics industry, but it is sometimes referred to as purple. Similarly, slate is a particular shade of gray. The names of most of the colors were taken from the conventional colors of the rainbow or optical spectrum, and in the electronic color code , which uses the same ten colors ...

  5. Visible light communication - Wikipedia

    en.wikipedia.org/wiki/Visible_light_communication

    Visible light is only a small portion of the electromagnetic spectrum. In telecommunications, visible light communication ( VLC) is the use of visible light ( light with a frequency of 400–800 THz / wavelength of 780–375 nm) as a transmission medium. VLC is a subset of optical wireless communications technologies.

  6. Optical communication - Wikipedia

    en.wikipedia.org/wiki/Optical_communication

    Optical communication, also known as optical telecommunication, is communication at a distance using light to carry information. It can be performed visually or by using electronic devices . The earliest basic forms of optical communication date back several millennia, while the earliest electrical device created to do so was the photophone ...

  7. Colors of noise - Wikipedia

    en.wikipedia.org/wiki/Colors_of_noise

    Red (Brownian) Purple. Grey. v. t. e. In audio engineering, electronics, physics, and many other fields, the color of noise or noise spectrum refers to the power spectrum of a noise signal (a signal produced by a stochastic process ). Different colors of noise have significantly different properties. For example, as audio signals they will ...

  8. Fiber-optic cable - Wikipedia

    en.wikipedia.org/wiki/Fiber-optic_cable

    A fiber-optic cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable but containing one or more optical fibers that are used to carry light. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable is used ...

  9. Optical networking - Wikipedia

    en.wikipedia.org/wiki/Optical_networking

    Optical networking is a means of communication that uses signals encoded in light to transmit information in various types of telecommunications networks.These include limited range local-area networks (LAN) or wide area networks (WANs), which cross metropolitan and regional areas as well as long-distance national, international and transoceanic networks.