- optical signal
- оптический сигнал
English-Russian dictionary of telecommunications and their abbreviations. A.V. Alexandrov.. 2004.
optical signal
Смотреть что такое "optical signal" в других словарях:
optical signal — optinis signalas statusas T sritis fizika atitikmenys: angl. optical signal vok. optisches Signal, n rus. оптический сигнал, m pranc. signal optique, m … Fizikos terminų žodynas
Event Related Optical Signal — (EROS) is a brain scanning technique which uses infrared light through optical fibers to measure changes in optical properties of active areas of the cerebral cortex. Whereas techniques such as diffuse optical imaging (DOT) and near infrared… … Wikipedia
Optical heterodyne detection — is an important special case of heterodyne detection. In heterodyne detection, a signal of interest at some frequency is non linearly mixed with a reference local oscillator (LO) that is set at a close by frequency. The desired outcome is the… … Wikipedia
Optical coherence tomography — Intervention Optical Coherence Tomography (OCT) image of a sarcoma MeSH … Wikipedia
Optical communication — is any form of telecommunication that uses light as the transmission medium. An optical communication system consists of a transmitter, which encodes a message into an optical signal, a channel, which carries the signal to its destination, and a… … Wikipedia
Optical power meter — in use An optical power meter (OPM) is a device used to measure the power in an optical signal. The term usually refers to a device for testing average power in fiber optic systems. Other general purpose light power measuring devices are usually… … Wikipedia
Optical imaging — is an imaging technique. Optics usually describes the behavior of visible, ultraviolet, and infrared light used in imaging. Because light is an electromagnetic wave, similar phenomena occur in X rays, microwaves, radio waves. Chemical imaging or… … Wikipedia
Signal optique evoque — Signal optique évoqué La mesure du signal optique évoqué ou encore signal optique lié à l événement (en:event related optical signal, EROS) est une technique utilisée dans le domaine des neuroscience. Elle utilise le fait que l activité des… … Wikipédia en Français
Optical performance monitoring — (OPM) is used for managing high capacity dense wavelength division multiplexing (DWDM) optical transmission and switching systems in Next Generation Networks (NGN). OPM involves assessing the quality of data channel by measuring its optical… … Wikipedia
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 may be thought of as a laser without an optical cavity, or one in which feedback from… … Wikipedia
Optical hybrid — A 90° optical hybrid is a six port device that is used for coherent signal demodulation for either homodyne or heterodyne detection. It would mix the incoming signal with the four quadratural states associated with the reference signal in the… … Wikipedia
