optical

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optical

1. of, relating to, producing, or involving light
2. of or relating to the eye or to the sense of sight; optic
3. (esp of a lens) aiding vision or correcting a visual disorder
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

optical

[′äp·tə·kəl]
(optics)
Pertaining to or utilizing visible or near-visible light; the extreme limits of the optical spectrum are about 100 nanometers (0.1 micrometer or 3 × 1015 hertz) in the far ultraviolet and 30,000 nanometers (30 micrometers or 1013 hertz) in the far infrared.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In optical networks that aim to boost capacity and distance, the increasing complexity of types of optical transmission signals and device parameter settings means that building the network or fixing issues may require several days, leading to significant issues in quickly building and managing fiber-optic networks.
We analyze the effect of attenuation coefficient on the performance of the proposed optical transmission system.
Research on the FF layer optical transmission changes was performed using sole durable magnetic field pulses ([[tau].sub.pulse] ~ 200 s).
The researchers had attached the transmitter straight onto the receiver to test these new optical transmission techniques.
Lead researcher, Dr Robert Maher, UCL Electronic & Electrical Engineering, said: "While current state-of-the-art commercial optical transmission systems are capable of receiving single channel data rates of up to 100 gigabits per second (Gb/s), we are working with sophisticated equipment in our lab to design the next generation core networking and communications systems that can handle data signals at rates in excess of I terabit per second (Tb/s).
This paper deals with a modeling of the phase shift keying (PSK) modulation technique and its multi-level variations, which appears to be very resistant to nonlinear effects present in the optical transmission medium [4, 5].
Non-linear effects have been considered as being generally destructive for long haul fiber optic transmission system [1].Fiber nonlinearities such as self phase modulation (SPM) and cross phase modulation (XPM) have drawn significant consideration [2].Dispersion effects can be minimized by utilizing periodic dispersion compensation (DCF) along with standard single mode fiber(SSMF) [3].By doing this bandwidth-length product of optical transmission system link is no more limited by chromatic dispersion(CD)leaving nonlinear effects as main concern.
This upgrade is expected to offer a robust network, providing multi-Terabit optical transmission to deliver 100 Gigabit per second (Gb/s) services across the country.
The HPU 42000 series Raman amplifiers, which feature built-in automatic gain control (AGC) function, offer ease of system implementation and excellent noise characteristics, which, in combination with erbium-doped fiber amplifiers (EDFAs), improves optical signal to noise ratio (OSNR) as well as compensates for optical loss resulting from optical transmission lines and optical components.
In fiber optical transmission systems dispersion compensation modules (DCM) (also called dispersion compensation units--DCU) can be used for chromatic dispersion compensation.
Matloff presented a paper on the results of the City Tech team's optical transmission experiments, "Optical Transmission of an Allende Meteorite Thin Section and Simulated Regolith," at the 73rd Annual Meeting of the international Meteoritical Society, held at the American Museum of Natural History and the Park Central Hotel in New York City.
Summary: GlobeNet, an international wholesale provider of submarine capacity, announced today the successful conclusion of a trial of 40 Gbps optical transmission technology on the most demanding segments of its submarine cable network and the award of a 100 Gbps Network Upgrade Contract to Xtera Communications, Inc.

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