Results 291 to 300 of about 42,500 (342)
Some of the next articles are maybe not open access.
A multiplexer/demultiplexer for coarse wavelength-division multiplexing
Technical Physics Letters, 2004Increasing the transmission capacity of existing and newly developed optical communication lines and networks (data exchange systems) implies the use of wavelength-division multiplexing (WDM). Optical fiber multiplexers and demultiplexers are the WDM devices necessary for combining several carriers in a common optical tract and performing the inverse ...
V. V. Shcherbakov +2 more
openaire +2 more sources
Wavelength-Division Multiplexed Optical Cryptocurrency
Conference on Lasers and Electro-Optics, 2021We 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 +7 more
openaire +2 more sources
Optical wavelength division multiplex
[Proceedings] GLOBECOM '90: IEEE Global Telecommunications Conference and Exhibition, 2002The 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). >
openaire +2 more sources
L.E.D. Wavelength Division Multiplexing [PDF]
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 %.
openaire +1 more source
GaInNAs microspheres for wavelength division multiplexing
IEE Proceedings - Optoelectronics, 2003The GaInNAs range of compounds is suitable for optoelectronic device applications in 1.3 and 1.55 µm lasers, because of the large conduction band discontinuity resulting in good electron confinement and improved temperature characteristics. GaInNAs is suited to wavelength division multiplexing (WDM) applications in high-speed optical communication ...
Ali Serpengüzel +3 more
openaire +2 more sources
Dual mode and wavelength-division multiplexing
Frontiers in Optics 2015, 2015Simultaneous mode and wavelength division multiplexing is proposed using integrated asymmetric directional coupler and multimode interference waveguide. Using numerical simulations, the device exhibits low insertion loss of 1.2dB and a cross-talk of -18dB.
Mahmoud Rasras, Tadesse Mulugeta
openaire +2 more sources
Optical fiber wavelength division multiplexing
IEEE Aerospace and Electronic Systems Magazine, 2003During 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.
James J. Sluss +4 more
openaire +2 more sources
Massive wavelength-division multiplexing with solitons
IEEE Journal of Quantum Electronics, 1998Solitons have already enabled the demonstration of many-channel wavelength-division multiplexing (WDM), error free over transoceanic distances, at per-channel rates of 10 and 20 Gbit/s. In this paper, we assess the potential for extending the total transmission rate to many hundreds of gigabit/s in such massive WDM with solitons.
Linn F. Mollenauer, P.V. Mamyshev
openaire +2 more sources
Monomode Wavelength Division Multiplexer/Demultiplexer
SPIE Proceedings, 1986In this paper we describe an in-line single-mode fiber optic wavelength division multiplexer/demultiplexer designed to operate at 1.32 um and 1.55 um. This device was fabricated using evanescent wave coupler technology and consequently exhibits an insertion loss on the order of 0.05 db and a high degree of stability with regard to changes in ...
V. J. Tekippe +3 more
openaire +2 more sources
Wavelength-Division Multiplexing Optics
2017Wavelength-division m ultiplexing (WDM) multiplies transmission capacity by allowing a single optical fiber to carry separate signals at multiple wavelengths, but that benefit comes at a cost in complexity. Additional optical components are needed to combine and separate optical channels at closely spaced wavelengths, and to process the signals as they
openaire +2 more sources