Research on Key Technologies of Mode Multiplexing / Demultiplexing
نویسندگان
چکیده
منابع مشابه
Wavelength-division multiplexing and demultiplexing on locally sensitized single-mode polymer microstructure waveguides.
A four-channel wavelength-division-(de)multiplexing [WD(D)M] device, operating over optical wavelengths of 543.0 to 632.8 nm, has been successfully fabricated on newly developed locally sensitized polymer (photo-lime gelatin) microstructure waveguides (PMSW's). The WD(D)M device exhibits a cross talk of less than -40 dB between adjacent channels and a diffraction efficiency of better than 50%. ...
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Spatial mode multiplexing is used to transmit several communication channels on a single multimode optical fiber. Each channel is encoded by an orthogonal pattern produced by a spatial light modulator. A photorefractive medium holographically decodes the output speckle pattern at a receiver station. We demonstrate ring and star architectures for interconnection networks. Typical cross-talk-to-s...
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We propose a new method of volume hologram multiplexing/demultiplexing in noncentrosymmetric media. Volume holograms may be multiplexed by tuning the material parameters of the recording medium (such as refractive index or lattice parameters) while keeping the external parameters (wavelength and angles) fixed. For example, an external dc electric field alters the index of refraction through the...
متن کاملSignal Processing by Multiplexing and Demultiplexing in Neurons
Signal processing capabilities of biological neurons are investigated. Temporally coded signals in neurons can be multiplexed to increase the transmission capacity. Multiplexing of signal is suggested in bi-threshold neurons with II high-threshold II and II low-thre shold II for switching firing modes. To extract the signal embedded in the interspikeintervals of firing, the encoded signal are d...
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ژورنال
عنوان ژورنال: E3S Web of Conferences
سال: 2020
ISSN: 2267-1242
DOI: 10.1051/e3sconf/202021303017