نتایج جستجو برای: demultiplexer
تعداد نتایج: 437 فیلتر نتایج به سال:
Here, we demonstrate a compact photonic crystal wavelength demultiplexing device based on a diffraction compensation scheme with two orders of magnitude performance improvement over the conventional superprism structures reported to date. We show that the main problems of the conventional superprism-based wavelength demultiplexing devices can be overcome by combining the superprism effect with ...
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Guided by the digital design concepts, we synthesized a two-module molecular demultiplexer (DEMUX) where the output is switched between emission at near IR, and cytotoxic singlet oxygen, with light at 625 nm as the input (I), and acid as the control (c). In the neutral form, the compound fluoresces brightly under excitation at 625 nm, however, acid addition moves the absorption bands of the two...
A time division multiplexer/demultiplexer for use in an experimental multiple access lightwave network is described. The multiplexer circuit capable of handling data rates up to 100 Mb/sec was built using state of the art emitter coupled logic. This multiplexer is able to absorb a continuous digital data stream at rates between 768 Kb/sec and 100 Mb/sec while at the same time retransmitting the...
Abstract Nanophotonic arithmetic circuits requiring cascaded Boolean operations are difficult to implement due loss and footprint issues. In this work, we experimentally demonstrate plasmonic half-subtractor demultiplexer based on transmission-lines. Empowered by the unique polarization selectivity in surface plasmon modal behaviors, both realized without cascading. The of can be performed usin...
Abstract An ultra-compact plasmonic unidirectional wavelength multiplexer/demultiplexer based on slot cavities is proposed and numerically simulated. The structure consists of which are etched either sides a metal–insulator–metal (MIM) bus waveguide. capture surface plasmon polariton (SPP) waves at their resonant wavelengths unidirectionally couples them to the drop waveguide parallel bus. basi...
A new approach to birefringence compensation in arrayed waveguide gratings (AWG) is proposed. The star couplers are designed according to Rowland circle construction with an oblique incident/diffraction angle, similar to the case of an echelle grating. Such an AWG design is more general and flexible, and the conventional AWG becomes its special case when the grating angle is zero. By appropriat...
Wavelength demultiplexers based on photonic crystal resonators are attractive, since they may be realized in very small sizes. However, existing designs have a limitation on the size, since they all require one resonator for each wavelength and these resonators must be separated. As a possible approach to reduce the size further, we show that a single multimode resonator may be used to separate...
We experimentally demonstrate a new type of waveguide multiplexer device designed for silicon photonics, with a crosstalk level as low as -35 dB and an operational wavelength range of 300 nm. A compact device footprint of only 100 × 160 µm2 offers an excellent potential for integration with other silicon nanophotonic circuits.
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