optical bandwidth

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• 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 mesh network — Transport network based on SONET/SDH ring architecture Optical mesh networks are a type of telecommunications network. Transport networks, the underlying optical fiber based layer of telecommunications networks, have evolved from DCS (Digital… …   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

• Bandwidth (signal processing) — Bandwidth is the difference between the upper and lower cutoff frequencies of, for example, a filter, a communication channel, or a signal spectrum, and is typically measured in hertz. In case of a baseband channel or signal, the bandwidth is… …   Wikipedia

• Optical burst switching — (OBS) is an optical networking technique that allows dynamic sub wavelength switching of data. OBS is viewed as a compromise between the yet unfeasible full optical packet switching (OPS) and the mostly static optical circuit switching (OCS). It… …   Wikipedia

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

• Optical Carrier transmission rates — are a standardized set of specifications of transmission bandwidth for digital signals that can be carried on Synchronous Optical Networking (SONET) fiber optic networks.[1] Transmission rates are defined by rate of the bitstream of the digital… …   Wikipedia

• Bandwidth guaranteed polling — (BGP) is a dynamic bandwidth allocation algorithm designed by Maode Ma et al. at the Singapore University. This is an instance of an algorithm that allocates bandwidth based on fixed weights.BGP divides a window of time into fixed sized slots, a… …   Wikipedia

• Optical disc recording technologies — Optical discs Optical disc Optical disc drive Optical disc authoring Authoring software Recording technologies Recording modes Packet writing Optical media types …   Wikipedia

• Optical IP Switching — (OIS), is a novel method of creating transparent optical connections between network nodes using a flow based approach. An IP flow is a collection of IP packets going from the same source to the same destination: the exchange of IP packets is the …   Wikipedia

• Optical Burst Switching — (OBS) is an experimental switching paradigm representing an intermediate solution between circuit (wavelength) and packet switching in optical networks. PurposeIts purpose is to dynamically provision sub wavelength granularity by optimally… …   Wikipedia