Optical feedback (OF) refers to the phenomenon in a laser, where a part of the coherent emission light returns to the laser cavity. The effect is typical...

a fractal pattern. Optical feedback in science is often closely related to video feedback, so an understanding of video feedback can be useful for other...

observations. Optical Depth The optical depth feedback is determined by the increasing optical depth of the high clouds with rising temperatures. The optical depth...

laser without an optical cavity, or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and...

includes: Low-key feedback – In human-computer interaction, low-key feedback is output that takes a background role Optical feedback – Loop delay that...

mirrors to provide optical feedback. They may also be designed for single longitudinal mode operation of ultra-narrow distributed feedback lasers (DFB) where...

resonator confines microwaves. Optical cavities are a major component of lasers, surrounding the gain medium and providing feedback of the laser light. They...

used to prevent unwanted feedback into an optical oscillator, such as a laser cavity. The operation of conventional optical isolators relies on the Faraday...

near-field optical (NFO) microscope involved a sub-wavelength aperture at the apex of a metal coated sharply pointed transparent tip, and a feedback mechanism...

diode. The optical resonator, or optical cavity, in its simplest form is two parallel mirrors placed around the gain medium, which provide feedback of the...

A distributed-feedback laser (DFB) is a type of laser diode, quantum-cascade laser or optical-fiber laser where the active region of the device contains...

Press, 2009). Wiseman, H.; Milburn, G. J. (1993). "Quantum theory of optical feedback via homodyne detection" (PDF). Phys. Rev. Lett. 70 (5): 548–551. Bibcode:1993PhRvL...

gain medium, a mechanism to energize it, and something to provide optical feedback. The gain medium is a material with properties that allow it to amplify...

SLEDs lack optical feedback, so that no laser action can occur. Optical feedback resulting from back-reflections of light from optical components such...

used. A QCL however does not use bulk semiconductor materials in its optically active region. Instead, it consists of a periodic series of thin layers...

transmissions states are possible and stable, dependent on the input. Optical devices with a feedback mechanism, e.g. a laser, provide two methods of achieving bistability...

onto the array itself at the Talbot distance, creating optical feedback. This interference feedback forces the lasers in the array to transverse mode lock...

laser in which optical feedback is provided by scattering particles. As in conventional lasers, a gain medium is required for optical amplification. However...

Cavity-Enhanced Optical-Heterodyne Molecular Spectroscopy (NICE-OHMS) technique. or combination of frequency modulation and optical feedback locking CEAS...

gain medium is pumped to produce a population inversion. Feedback of the ASE by the laser's optical cavity may produce laser operation if the lasing threshold...

Biolasers, like any lasers, require three components: a gain medium, an optical feedback structure and a pump source. For the gain medium, a variety of naturally...

time travelPages displaying short descriptions of redirect targets Optical feedback Ouroboros – Symbolic serpent with its tail in its mouth Penrose stairs –...

exploiting hybrid quadrupole plasmons as an optical feedback mechanism. The spaser is a proposed nanoscale source of optical fields that is being investigated in...

elements. Bounding interval hierarchy Demoscene Geometry instancing Optical feedback Quartz Composer Real time (media) Real-time raytracing Tessellation...

by optical or electronic feedback. Optical feedback (OF) locking, originally developed by Romanini et al. for cw-CRDS, uses the optical feedback from...

alternative to the cascade tube explored in the mid 20th century involves optical feedback, with the output of the tube fed back into the input. This scheme has...

systems Video feedback, the optical equivalent of audio feedback, caused when a camera films the image it is producing Positive feedback, a feedback system that...

Optical mark recognition (OMR) collects data from people by identifying markings on a paper. OMR enables the hourly processing of hundreds or even thousands...

Pratchett, Morgan; Ziegler, Maren; Wiedenmann, Jörg (July 2020). "Optical Feedback Loop Involving Dinoflagellate Symbiont and Scleractinian Host Drives...

coherence tomography Optical cross section Optical decay Optical dilatometer Optical disc drive Optical downconverter Optical feedback Optical heterodyne detection...