Fiber Optic Switches
... called micro machining. The structures range in dimensions from a few hundred microns to millimeters, and are mostly fabricated on silicon substrates, using standard semiconductor processing techniques. MEMS offer the same potential benefits as large-scale electronic integrated circuits: low-cost an ...
... called micro machining. The structures range in dimensions from a few hundred microns to millimeters, and are mostly fabricated on silicon substrates, using standard semiconductor processing techniques. MEMS offer the same potential benefits as large-scale electronic integrated circuits: low-cost an ...
An optical leaky wave antenna with Si perturbations inside a
... 17. S. Paulotto, P. Baccarelli, F. Frezza, and D. R. Jackson, “A novel technique for open-stopband suppression in 1D periodic printed leaky-wave antennas,” IEEE Trans. Antenn. Propag. 57(7), 1894–1906 (2009). ...
... 17. S. Paulotto, P. Baccarelli, F. Frezza, and D. R. Jackson, “A novel technique for open-stopband suppression in 1D periodic printed leaky-wave antennas,” IEEE Trans. Antenn. Propag. 57(7), 1894–1906 (2009). ...
Fiber optics for laser cooling and trapping
... split in polarization-maintaining fiber cables. The fiber cables contribute to a polarization maintenance of more than 26 dB (at 780 nm) and have fiber connectors of the FC-APC (angled physical contact) type for deterring back-reflections. Radiation splitting is achieved by using a cascade of rota ...
... split in polarization-maintaining fiber cables. The fiber cables contribute to a polarization maintenance of more than 26 dB (at 780 nm) and have fiber connectors of the FC-APC (angled physical contact) type for deterring back-reflections. Radiation splitting is achieved by using a cascade of rota ...
... 1. What is meant by coherence in laser light? A coherent light is pure sine wave and during its transmission it can maintain constant phase difference between any two points in space as well as in a given time interval at any point along the transmission path. Thus it is traveling in a continuous ma ...
Mode Structure of Active Resonators
... either the excitation mechanism or the mutual interaction of medium and axially symmetric field. For example, the propagation Gaussian a of beam through a homogeneously excitated active medium results in axially symmetric gain variations. The interaction can always be describedin terms of the propag ...
... either the excitation mechanism or the mutual interaction of medium and axially symmetric field. For example, the propagation Gaussian a of beam through a homogeneously excitated active medium results in axially symmetric gain variations. The interaction can always be describedin terms of the propag ...
Various Indoor OFDM Optical Wireless Communication Systems and
... optical wireless communication systems in the presence of LED clipping distortions is analysed. The Orthogonal frequency division multiplexing (OFDM) is used in many wired and wireless broadband communication systems because of its resilience in the presence of signal dispersion or multipath distort ...
... optical wireless communication systems in the presence of LED clipping distortions is analysed. The Orthogonal frequency division multiplexing (OFDM) is used in many wired and wireless broadband communication systems because of its resilience in the presence of signal dispersion or multipath distort ...
2001 - Institute of Applied Physics - Friedrich-Schiller
... combining large angles of profiles and non-paraxial incident waves may lead to spherical aberrations. In this case it is necessary to use special design methods which consider these effects. We want to present a special beam shaping task for an application in safety engineering, in which beam shapin ...
... combining large angles of profiles and non-paraxial incident waves may lead to spherical aberrations. In this case it is necessary to use special design methods which consider these effects. We want to present a special beam shaping task for an application in safety engineering, in which beam shapin ...
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 the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics.There are several different physical mechanisms that can be used to amplify a light signal, which correspond to the major types of optical amplifiers. In doped fibre amplifiers and bulk lasers, stimulated emission in the amplifier's gain medium causes amplification of incoming light. In semiconductor optical amplifiers (SOAs), electron-hole recombination occurs. In Raman amplifiers, Raman scattering of incoming light with phonons in the lattice of the gain medium produces photons coherent with the incoming photons. Parametric amplifiers use parametric amplification.