optical power source

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• 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 power margin — In an optical communications link, the optical power margin is the difference between the optical power that is launched by a given transmitter into the fiber, less transmission losses from all causes, and the minimum optical power that is… …   Wikipedia

• Optical power budget — The optical power budget in a fiber optic communication link is the allocation of available optical power (launched into a given fiber by a given source) among various loss producing mechanisms such as launch coupling loss, fiber attenuation,… …   Wikipedia

• Optical tweezers — (originally called single beam gradient force trap ) are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch… …   Wikipedia

• Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …   Wikipedia

• Optical landing system — The Fresnel Lens Optical Landing System of Charles de Gaulle An optical landing system (OLS) (nicknamed meatball or simply, Ball ) is used to give glidepath information to pilots in the terminal phase of landing on an aircraft carrier.[1] From… …   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 network unit — An optical network unit (ONU) is a device that transforms incoming optical signals into electronics at a customer s premises in order to provide telecommunications services over an optical fiber network. Contents 1 Definition 2 Usage 3 Optical… …   Wikipedia

• Optical modulation amplitude — In telecommunications, optical modulation amplitude (OMA) is the difference between two optical power levels, of a digital signal generated by an optical source, e.g., a laser diode. It is given by where P1 is the optical power level generated… …   Wikipedia

• Optical coherence tomography — Intervention Optical Coherence Tomography (OCT) image of a sarcoma MeSH …   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