Results 191 to 200 of about 2,240,080 (250)

Compound optical crosspoint with low crosstalk

Applied Optics, 1977
A multimode electrooptical switch that has high isolation between channels has been demonstrated experimentally in a 70-microm-thick plate of Z-cut LiTaO(3). The fiber-compatible four-port switch is intended for integration into an optical matrix. The crosspoint consists of an in-plane crossover, two simple optical switches, and a curved connecting ...
R A, Soref, A R, Nelson
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Quantifying the influence of crosstalk-crosstalk beat noise in optical DPSK systems

2011 IEEE EUROCON - International Conference on Computer as a Tool, 2011
In-band crosstalk, due to multiple interferers, is one of the most severe physical impairments in optical transparent networks. Differential phase-shift keying (DPSK) has been identified as an attractive modulation scheme to be used in such environments due to its robustness to in-band crosstalk.
Luís G. C. Cancela, João J. O. Pires
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Interferometric crosstalk in optical networks

Conference Proceedings. LEOS'98. 11th Annual Meeting. IEEE Lasers and Electro-Optics Society 1998 Annual Meeting (Cat. No.98CH36243), 2002
Summary form only given. This review will introduce the basic processes involved in the interference of the data signal with crosstalk terms, bringing out the interplay between the optical bandwidth of the source and the electronic bandwidth of the receiver. The models used routinely to treat the detrimental effect of beat noise, relying heavily on the
M. Tur, I. Andonovic, K. Kitayama
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Optical Crosstalk in Silicon Nanowaveguides

National Fiber Optic Engineers Conference, 2010
We characterize optical crosstalk and the associated bit-error rate degradation in silicon nanowaveguides. Our results indicate that the crosstalk decreases with increasing modulation frequency and decreases with input power, which we attribute to free-carrier absorption.
Yoshitomo Okawachi, Onur Kuzucu, Mark A. Foster, Reza Salem, Alexander L. Gaeta, Amy C. Turner-Foster, Michal Lipson, Aleksandr Biberman, Noam Ophir, Keren Bergman   +9 more
openaire   +1 more source

Optical Crosstalk in a Silicon Nanowaveguide

Conference on Lasers and Electro-Optics 2010, 2010
We characterize optical crosstalk and the associated bit-error rate degradation in silicon nanowaveguides. Results indicate that crosstalk decreases with increasing modulation frequency, which we attribute to free-carrier lifetime in the nanowaveguides.
Yoshitomo Okawachi, Onur Kuzucu, Aleksandr Biberman, Noam Ophir, Mark A. Foster, Amy C. Turner-Foster, Reza Salem, Michal Lipson, Keren Bergman, Alexander L. Gaeta   +9 more
openaire   +1 more source

Scalability of Optical Networks: Crosstalk Limitations

Photonic Network Communications, 2000
Optical networks represent a promising solution for the future high capacity and flexible transport network. This paper presents a model for the performance evaluation of optical networks with respect to linear crosstalk and accumulated spontaneous emission noise.
openaire   +3 more sources

Reducing crosstalk in optically-pumped magnetometer arrays

Physics in Medicine & Biology, 2019
Abstract Optically pumped magnetometers (OPMs) operating in the spin-exchange relaxation-free regime are emerging as alternative sensors to superconducting quantum interference devices (SQUIDs) for magnetoencephalography (MEG). As the number of OPMs in a single imaging system increases to rival SQUID MEG systems, cross-talk between ...
N V Nardelli, S P Krzyzewski, S A Knappe
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Optical Servo Crosstalk

SPIE Proceedings, 1989
One of the parameters affecting the focus and tracking servo performance is servo crosstalk. Servo crosstalk consists of mechanical, electrical and optical crosstalks. In this paper only the optical crosstalk for systems utilizing the push-pull tracking error signal is investigated.
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Magnetic Crosstalk Minimization in Optical Current Sensors

IEEE Transactions on Instrumentation and Measurement, 2008
We demonstrate that the magnetic crosstalk-induced errors associated with point-type optical (Faraday) current sensors working in three-phase electric systems may be minimized by properly designing the geometry of the system. We propose a novel architecture in which the optical path inside the magnetooptical material is parallel to the direction of the
César Daniel Perciante, José A. Ferrari   +1 more
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Self-Defocusing and Optical Crosstalk in a Bistable Optical Etalon

Topical Meeting on Optical Bistability, 1983
Self-focusing effects in optical bistable hysteresis loops have been observed in a GaAs-GaAlAs superlattice.1 Experimentally, one sees drastic overshooting in the hysteresis loops and changes in the output profile as the imaging lens is translated along the propagation direction, thus imaging different object planes onto a fixed image plane (i.e ...
K. Tai, H. M. Gibbs, J.V. Moloney, S.S. Tarng, J.L. Jewell, D.A. Weinberger   +5 more
openaire   +1 more source