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  2. Waveguide (optics) - Wikipedia

    en.wikipedia.org/wiki/Waveguide_(optics)

    An optical waveguide is a physical structure that guides electromagnetic waves in the optical spectrum.Common types of optical waveguides include optical fiber waveguides, transparent dielectric waveguides made of plastic and glass, liquid light guides, and liquid waveguides.

  3. Optical parametric amplifier - Wikipedia

    en.wikipedia.org/wiki/Optical_parametric_amplifier

    The optical parametric amplifier has a wider bandwidth than a -amplifier, which in turn has a wider bandwidth than an optical parametric oscillator because of white-light generation even one octave wide (for example using nonlinear self-phase modulation in neon gas [2]). Therefore, a subband can be selected and fairly short pulses can still be ...

  4. Polar Electro - Wikipedia

    en.wikipedia.org/wiki/Polar_Electro

    Polar Electro Oy (commonly known as Polar) is a Finnish manufacturer of sports training computers, particularly known for developing the world's first wireless heart rate monitor. [ 1 ] The company is based in Kempele , Finland and was founded in 1977.

  5. Best Oculus Quest 2 prices and deals: October 2022 - AOL

    www.aol.com/news/best-oculus-quest-2-prices...

    Luckily, the Quest 3 is still on the way, and most estimations point to a late 2023 release date, with a much-more-reasonable price tag of around $300-$500. Once you set up your Oculus Quest 2 ...

  6. Polarization mode dispersion - Wikipedia

    en.wikipedia.org/wiki/Polarization_mode_dispersion

    A PMD compensation system is a device which uses a polarization controller to compensate for PMD in fibers.Essentially, one splits the output of the fiber into two principal polarizations (usually those with dτ dω = 0, i.e. no first-order variation of time-delay with frequency), and applies a differential delay to re-synchronize them.

  7. List of optics equations - Wikipedia

    en.wikipedia.org/wiki/List_of_optics_equations

    2.2 Geometric optics. 2.3 Polarization. 2.4 Diffraction and interference. 3 Astrophysics definitions. ... Cartesian and spherical polar coordinates are used, xy plane ...