Results 281 to 290 of about 44,358 (319)

On-chip multiplexing conversion between wavelength division multiplexing–polarization division multiplexing and wavelength division multiplexing–mode division multiplexing

Optics Letters, 2014
A compact silicon-on-insulator device used for conversions between polarization division multiplexing (PDM) and mode division multiplexing (MDM) signals is proposed and experimentally demonstrated by utilizing a structure combining the improved two-dimensional grating coupler and two-mode multiplexer.
Mengyuan, Ye, Yu, Yu, Jinghui, Zou, Weili, Yang, Xinliang, Zhang   +4 more
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Wavelength Division Multiplexing

SPIE Proceedings, 1985
Wavelength division multiplexing (WDM) represents an approach for expanding the communication capacity and for implementing special data techniques in a fiber optics system. This technology is implemented by adding optical sources of different wavelengths at optical transmitting locations. The present paper is concerned with some of the current efforts
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WAVELENGTH DIVISION MULTIPLEXED NETWORKS

Optical Amplifiers and Their Applications, 1995
Wavelength-division-multiplexing (WDM) or optical frequency-division-multiplexing (OFDM) based transport networks are being intensively studied because they are expected to support broadband services [1-4]. Both transmission line capacity and processing node capacity will be increased by the simple node configuration.
Hiromu Toba, Kazuhiro Oda, Kyo Inoue
openaire   +1 more source

Wavelength-Division Multiplexed Optical Cryptocurrency

Conference on Lasers and Electro-Optics, 2021
We propose an optical proof-of-work scheme that feeds data encoded into wavelength-division multiplexed modes through a programmable photonic network. We verify robustness by modeling network dispersion, allowing for energy-efficient optical al- ternatives to current cryptocurrency security schemes.
Sunil Pai, Nathnael Abebe, Michael Dubrovsky, Rebecca L Hwang, Maxim Karpov, Bogdan Penkovsky, David A. B. Miller, Olav Solgaard   +7 more
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Wavelength Division Multiplexing (WDM)

2021
Wavelength division multiplexing or WDM allows the combining of a number of independent information-carrying wavelengths onto the same fiber, because of the wide spectral region in which optical signals can be transmitted efficiently. This chapter addresses the operating principles of WDM, describes a wide array of optical sources and passive ...
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Multisoliton interactions and wavelength-division multiplexing

Optics Letters, 1995
Multisoliton interactions are studied with an asymptotic expansion of the N-soliton solution in the limit of large frequency separation between the channels. In this limit the spectral distortion is small and the peak frequency shift of a channel is the sum of pairwise shifts as a result of interaction with other channels.
S, Chakravarty, M J, Ablowitz, J R, Sauer, R B, Jenkins   +3 more
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Optical wavelength division multiplex

[Proceedings] GLOBECOM '90: IEEE Global Telecommunications Conference and Exhibition, 2002
The author presents a brief overview of WDM (wavelength division multiplexing) technology, systems, and challenges, with emphasis on current research at AT&T Bell Laboratories. Particular attention is given to long-haul systems, local applications, and tunable WDM (e.g. the WDM digital crossconnect system and WDM multiple-access networks). >
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L.E.D. Wavelength Division Multiplexing

SPIE Proceedings, 1986
LED wavelength multiplexing with spectral narrowing enables to reduce the material dispersion effect and increases transmission distance of a broadband link (50 MHz Bandwith) by more than 50 %.
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Compact wavelength division multiplexers and demultiplexers

Applied Optics, 2002
Compact devices for wavelength division multiplexing and demultiplexing, believed to be novel, are presented. These devices are based on planar optics configurations, comprising multiplexed diffractive optical elements. The principle, design, and recording of these planar devices are described, including the fact that the recording is done at a single ...
Revital, Shechter, Yaakov, Amitai, Asher A, Friesem   +2 more
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Optical fiber wavelength division multiplexing

IEEE Aerospace and Electronic Systems Magazine, 2003
During flight, aircraft avionics transmit and receive RF signals to/from antennas over coaxial cables. As the density and complexity of onboard avionics increases, the electromagnetic interference (EMI) environment degrades proportionately, leading to decreasing signal-to-noise ratios (SNRs) and potential safety concerns.
F. Slaveski, J. Sloss, M. Atiquzzaman, null Hung Nguyen, null Due Ngo   +4 more
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