The Experts below are selected from a list of 276 Experts worldwide ranked by ideXlab platform
C. Dragone - One of the best experts on this subject based on the ideXlab platform.
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Planar 1 x N optical multiplexer with nearly ideal response
IEEE Photonics Technology Letters, 2002Co-Authors: C. DragoneAbstract:It is shown that nearly ideal multiplexing and demultiplexing can be realized in optical networks by using a Planar Arrangement of two waveguide gratings combined with a reflector (or a waveguide lens). The new Arrangement, realized by using a new type of waveguide array, implies higher spectral efficiency and higher capacity for future optical networks.
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Proposed optical cross connect using a Planar Arrangement of beam steerers
IEEE Photonics Technology Letters, 1999Co-Authors: Christopher Richard Doerr, C. DragoneAbstract:We propose a design for a strict-sense nonblocking N/spl times/N spatial optical cross connect that employs Planar lightwave beam steerers. The beam steerers allow for a modular design without requiring two-dimensional chip-to-chip waveguide interconnections. The modular design and the fact that the number of electrical leads scales as N log N in turn allows the possibility of constructing large, robust, solid-state cross connects. We also propose a cascaded beam-steerer design that substantially relaxes the phase shifter strength requirement.
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Proposed Optical Cross Connect Using a Planar Arrangement of Beam Steerers
Wavelength Division Multiplexing Components, 1999Co-Authors: Christopher Richard Doerr, C. DragoneAbstract:We propose a design for a strict-sense nonblocking N · N spatial optical cross connect that employs Planar lightwave beam steerers. The beam steerers allow for a modular design without requiring two-dimensional chip-to-chip waveguide interconnections. The modular design and the fact that the number of electrical leads scales as N log N in turn allows the possibility of constructing large, robust, solid-state cross connects. We also propose a cascaded beam-steerer design that substantially relaxes the phase shifter strength requirement.
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an n n optical multiplexer using a Planar Arrangement of two star couplers
IEEE Photonics Technology Letters, 1991Co-Authors: C. DragoneAbstract:The author describes the design of an integrated N*N multiplexer capable of simultaneously multiplexing and demultiplexing a large number (up to about 50) of input and output wavelength channels. The multiplexer is a generalization of the 2*2 Mach-Zehnder multiplexer. It consists of two N*M star couplers connected by M paths of unequal length. Aberrations caused by mutual coupling in the waveguide arrays are minimized by a correction scheme that causes each star coupler to accurately perform a Fourier transformation. The multiplexer should be useful as a wavelength routing device for long haul and local area networks. >
Christopher Richard Doerr - One of the best experts on this subject based on the ideXlab platform.
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Silicon photonic integration in telecommunications
Frontiers in Physics, 2015Co-Authors: Christopher Richard DoerrAbstract:Silicon photonics is the guiding of light in a Planar Arrangement of silicon-based materials to perform various functions. We focus here on the use of silicon photonics to create transmitters and receivers for fiber-optic telecommunications. As the need to squeeze more transmission into a given bandwidth, a given footprint, and a given cost increases, silicon photonics makes more and more economic sense.
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Proposed optical cross connect using a Planar Arrangement of beam steerers
IEEE Photonics Technology Letters, 1999Co-Authors: Christopher Richard Doerr, C. DragoneAbstract:We propose a design for a strict-sense nonblocking N/spl times/N spatial optical cross connect that employs Planar lightwave beam steerers. The beam steerers allow for a modular design without requiring two-dimensional chip-to-chip waveguide interconnections. The modular design and the fact that the number of electrical leads scales as N log N in turn allows the possibility of constructing large, robust, solid-state cross connects. We also propose a cascaded beam-steerer design that substantially relaxes the phase shifter strength requirement.
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Proposed Optical Cross Connect Using a Planar Arrangement of Beam Steerers
Wavelength Division Multiplexing Components, 1999Co-Authors: Christopher Richard Doerr, C. DragoneAbstract:We propose a design for a strict-sense nonblocking N · N spatial optical cross connect that employs Planar lightwave beam steerers. The beam steerers allow for a modular design without requiring two-dimensional chip-to-chip waveguide interconnections. The modular design and the fact that the number of electrical leads scales as N log N in turn allows the possibility of constructing large, robust, solid-state cross connects. We also propose a cascaded beam-steerer design that substantially relaxes the phase shifter strength requirement.
C. R. Doerr - One of the best experts on this subject based on the ideXlab platform.
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ECOC - Integrated Silicon Photonics
2017 European Conference on Optical Communication (ECOC), 2017Co-Authors: C. R. DoerrAbstract:Silicon photonics is a Planar Arrangement of silicon optical waveguides and devices on a substrate. It is useful because the defect density is low, the fabrication and packaging are leveraged from the electronics industry, the guidance is compact, and the performance is high. We start from the basic physics and end with communication and sensor devices.
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proposed wdm cross connect using a Planar Arrangement of waveguide grating routers and phase shifters
IEEE Photonics Technology Letters, 1998Co-Authors: C. R. DoerrAbstract:We propose a reconfigurable wavelength-division-multiplexing (WDM) cross connect consisting of two "interleave-chirped" waveguide grating routers connected by waveguides with phase shifters. For the 2 line/spl times/2 line case, any wavelength channel in one line can be exchanged with the same wavelength channel in the other line. For the P line/spl times/P line case, the channels can be switched in a cyclical fashion between lines. The device is compact with no waveguide crossings; is predicted to have relatively low and even losses for all channels; can theoretically achieve very high, fabrication-tolerant, switching extinction ratios; and can theoretically achieve a nearly excess-loss-free rectangular spectral response.
Sariel Harpeled - One of the best experts on this subject based on the ideXlab platform.
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taking a walk in a Planar Arrangement
Foundations of Computer Science, 1999Co-Authors: Sariel HarpeledAbstract:We present a randomized algorithm for computing portions of an Arrangement of n arcs in the plane, each pair of which intersect in at most t points. We use this algorithm to perform online walks inside such an Arrangement (i.e., compute all the faces that a curve, given in an online manner, crosses), and to compute a level in an Arrangement, both in an output-sensitive manner. The expected running time of the algorithm is O(/spl lambda//sub t+2/(m+n) log n), where m is the number of intersections between the walk and the given arcs. No similarly efficient algorithm is known for the general case of arcs. For the case of lines and for certain restricted cases involving line segments, our algorithm improves the best known algorithm of (Overmars and van Leeuwen, 1981) by almost a logarithmic factor.
E. Romano - One of the best experts on this subject based on the ideXlab platform.
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the multi spacer patterning technique a non lithographic technique for terascale integration
Semiconductor Science and Technology, 2008Co-Authors: G F Cerofolini, Paolo Amato, E. RomanoAbstract:Since the pioneering paper of Aviram and Ratner it has become progressively clearer and clearer that molecules can perform electrical functions so sophisticated as to mimic the behavior of electronic devices, hence the idea of exploiting them for molecular electronics. The practical exploitation of the electronic properties of molecules for computing (i.e., the transformation of a collection of molecules into a device) is, however, a major problem not yet solved. In the last few years the expertise in molecular design and synthesis combined with (i) the identification of a new structure, the crossbar, able to replace those based on a Planar Arrangement of field effect transistors, and (ii) the development of sub-lithographic techniques for the definition of a random or ordered Planar Arrangement of nanometre-sized features, has nonetheless led to consider as realistic the hypothesis that molecular devices might replace silicon-based devices when the basic element of the integrated circuit, the metal-oxide-semiconductor field effect transistor, will no longer admit further shrinking. This work is addressed to identify in which ways features (i) and (ii) can be exploited for application in molecular electronics.