• Thumbnail for Optical amplifier
    An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier...
    39 KB (5,210 words) - 22:00, 2 March 2025
  • Thumbnail for Optical parametric amplifier
    An optical parametric amplifier, abbreviated OPA, is a laser light source that emits light of variable wavelengths by an optical parametric amplification...
    10 KB (1,276 words) - 09:34, 28 February 2025
  • contrast, an optical amplifier can amplify all of the wavelengths in a single device and works for all modulation formats. An amplifier does not provide...
    3 KB (393 words) - 14:29, 12 June 2021
  • Thumbnail for Fiber-optic communication
    optical transmitters that convert electrical signals into optical signals, optical fiber cables to carry the signal, optical amplifiers, and optical receivers...
    75 KB (7,591 words) - 22:46, 9 May 2025
  • international and transoceanic networks. It is a form of optical communication that relies on optical amplifiers, lasers or LEDs and wavelength-division multiplexing...
    15 KB (1,959 words) - 14:01, 17 March 2025
  • For an optical amplifier with large G it holds Fpnf ≥ 2 whereas for an electrical amplifier it holds Fe ≥ 1. Moreover, today's long-haul optical fiber...
    17 KB (2,336 words) - 13:29, 1 February 2025
  • Thumbnail for Laser
    Laser (redirect from Optical maser)
    theoretical work by Charles H. Townes and Arthur Leonard Schawlow and the optical amplifier patented by Gordon Gould. A laser differs from other sources of light...
    126 KB (14,010 words) - 04:25, 12 May 2025
  • Thumbnail for Laser pumping
    stimulated emission can take place and the medium can act as a laser or an optical amplifier. The pump power must be higher than the lasing threshold of the laser...
    32 KB (4,063 words) - 15:09, 9 May 2025
  • quantum amplifier is an amplifier that uses quantum mechanical methods to amplify a signal; examples include the active elements of lasers and optical amplifiers...
    12 KB (1,855 words) - 18:46, 1 May 2024
  • Thumbnail for Photonics
    Optical amplifiers used in optical communications are erbium-doped fiber amplifiers, semiconductor optical amplifiers, Raman amplifiers and optical parametric...
    24 KB (2,756 words) - 04:17, 17 April 2025
  • Thumbnail for World Wide Web
    utilizing optical amplifiers to transmit data via light. Under chief executive officer Pat Nettles, Ciena developed a dual-stage optical amplifier for dense...
    107 KB (10,614 words) - 14:26, 17 May 2025
  • Thumbnail for Optical communication
    on optical networking systems using optical fiber, optical amplifiers, lasers, switches, routers, and other related technologies. Free-space optical communication...
    22 KB (2,551 words) - 02:52, 6 April 2025
  • Thumbnail for Prince Rupert's drop
    Technology in Estonia using a transmission polariscope to measure the optical retardation of light from a red LED as it travelled through the glass drop...
    20 KB (2,326 words) - 21:16, 9 April 2025
  • waveguide amplifier (or EDWA) is a type of an optical amplifier enhanced with erbium. It is a close relative of an EDFA, erbium-doped fiber amplifier, and...
    11 KB (1,454 words) - 02:40, 30 December 2024
  • amplifier is a device for increasing the power of an electronic signal. Amplifier may also refer to: Fluidic amplifier Mechanical amplifier Optical amplifier...
    848 bytes (118 words) - 13:14, 28 February 2025
  • Thumbnail for Amplifier
    power amplifier Lock-in amplifier Low-noise amplifier Negative feedback amplifier Optical amplifier Programmable-gain amplifier Tuned amplifier Valve...
    58 KB (7,150 words) - 08:43, 11 May 2025
  • dump the beam from the cavity. In regenerative amplification, an optical amplifier is placed inside a Q-switched cavity. Pulses of light from another...
    12 KB (1,720 words) - 03:33, 2 March 2025
  • Thumbnail for Spectroscopy
    absorption of gamma rays. See also Mössbauer effect. Multivariate optical computing is an all optical compressed sensing technique, generally used in harsh environments...
    44 KB (4,768 words) - 17:47, 7 April 2025
  • Thumbnail for History of the Internet
    first optical telephone system in 1977 in Long Beach, California. By the early 1980s, optical networks powered by lasers, LED and optical amplifier equipment...
    200 KB (22,335 words) - 19:07, 5 May 2025
  • compressors and stretchers. However, a typical Ti:sapphire-based chirped-pulse amplifier requires that the pulses are stretched to several hundred picoseconds...
    18 KB (2,157 words) - 18:08, 15 July 2024
  • aperture off-axis optical system optical aberration optical amplifier optical axis optical axis gratings optical bench optical coating optical coherence tomography...
    11 KB (898 words) - 23:45, 21 July 2024
  • Thumbnail for Optical fiber
    erbium-doped fiber amplifier, which reduced the cost of long-distance fiber systems by reducing or eliminating optical-electrical-optical repeaters, in 1986...
    100 KB (12,217 words) - 05:22, 19 May 2025
  • Thumbnail for Optics
    Optics (redirect from Optical)
    as X-rays, microwaves, and radio waves exhibit similar properties. Most optical phenomena can be accounted for by using the classical electromagnetic description...
    107 KB (12,886 words) - 21:46, 13 May 2025
  • quantum computing, superconducting magnets, light-emitting diodes, the optical amplifier and the laser, the transistor and semiconductors such as the microprocessor...
    10 KB (1,157 words) - 19:08, 16 April 2025
  • high gain. Chirped pulse amplification Gain-switching Modelocking Optical amplifier Q-switching Raman amplification Qian, C; Duan, Q; Dodd, S; Koretsky...
    3 KB (351 words) - 23:09, 4 December 2023
  • Thumbnail for Transatlantic communications cable
    cable came into use, with amplifiers. Late in the 20th century, all cables installed use optical fiber as well as optical amplifiers, because distances range...
    18 KB (835 words) - 19:19, 26 March 2025
  • Thumbnail for Gordon Gould
    who is sometimes credited with the invention of the laser and the optical amplifier. (Credit for the invention of the laser is disputed, since Charles...
    20 KB (2,425 words) - 19:14, 9 March 2025
  • Thumbnail for Terahertz time-domain spectroscopy
    electro-optical sampling can be enhanced beyond the classical shot noise limit through the use of squeezed light generated by an optical parametric amplifier...
    22 KB (2,922 words) - 15:02, 18 February 2025
  • Amplifiers (EDFAs) to extend the reach of the optical signals in fiber optics. Each transmitter and receiver services one optical node. This optical transmitter...
    51 KB (5,154 words) - 02:28, 24 February 2025
  • Thumbnail for Information Age
    the optical fiber and light amplification (the optical amplifier). In 1953, Bram van Heel demonstrated image transmission through bundles of optical fibers...
    100 KB (10,555 words) - 18:04, 16 May 2025