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  2. Electro-optic modulator - Wikipedia

    en.wikipedia.org/wiki/Electro-optic_modulator

    An electro-optic modulator (EOM) is an optical device in which a signal-controlled element exhibiting an electro-optic effect is used to modulate a beam of light. The modulation may be imposed on the phase , frequency , amplitude , or polarization of the beam.

  3. Coherent optical module - Wikipedia

    en.wikipedia.org/wiki/Coherent_optical_module

    Tunable lasers are sometimes used in combination with coherent modulation to allow a module to support various forms of network-based optical switching such as needed in certain cases by an optical mesh networks or a Reconfigurable optical add-drop multiplexer (ROADM). In these, the transmit laser can be tuned to a different optical frequency ...

  4. Optical modulator - Wikipedia

    en.wikipedia.org/wiki/Optical_modulator

    An optical modulator is a device which is used to modulate a beam of light. The beam may be carried over free space, or propagated through an optical waveguide ( optical fibre ). Depending on the parameter of a light beam which is manipulated, modulators may be categorized into amplitude modulators, phase modulators, polarization modulators, etc.

  5. Electro-absorption modulator - Wikipedia

    en.wikipedia.org/wiki/Electro-absorption_modulator

    An electro-absorption modulator (EAM) is a semiconductor device which can be used for modulating the intensity of a laser beam via an electric voltage. Its principle of operation is based on the Franz–Keldysh effect, i.e., a change in the absorption spectrum caused by an applied electric field, which changes the bandgap energy (thus the photon energy of an absorption edge) but usually does ...

  6. Eye pattern - Wikipedia

    en.wikipedia.org/wiki/Eye_pattern

    In telecommunications, an eye pattern, also known as an eye diagram, is an oscilloscope display in which a digital signal from a receiver is repetitively sampled and applied to the vertical input (y-axis), while the data rate is used to trigger the horizontal sweep (x-axis). It is so called because, for several types of coding, the pattern ...

  7. The 15 best modern Christmas songs to add to your holiday ...

    www.aol.com/15-best-modern-christmas-songs...

    Here's the best modern and new Christmas music to refresh your holiday playlist in 2024, featuring hits from Justin Bieber, Taylor Swift, Sabrina Carpenter, and more.

  8. Klystron - Wikipedia

    en.wikipedia.org/wiki/Klystron

    Engineering diagram of a four cavity coaxial gyroklystron at the University of Maryland, IREAP. The gyroklystron has cylindrical or coaxial cavities and operates with transverse electric field modes. Since the interaction depends on the resonance condition, larger cavity dimensions than a conventional klystron can be used.

  9. How immigration swung voters of color to Trump

    www.aol.com/immigration-swung-voters-color-trump...

    The chart shows that Trump actually lost a bit of support from 2020 to September 2024 among voters who opposed this policy, regardless of their race. You can see, instead, that Trump's gains were ...