نتایج جستجو برای: arrayed waveguide grating
تعداد نتایج: 30609 فیلتر نتایج به سال:
An ultrawide-band (UWB), O- to L- band, polarization insensitive (PI) 1 × 12 100 GHz channel spacing arrayed waveguide grating (AWG) is designed and realized in 3-μm Silicon-on-Insulator (SOI) platform. PI UWB operations are achieved by directly exploiting the silicon as waveguide. The AWG can be employed demultiplexer multiplexer photonic integrated circuits (PIC)s, such wavelength selective s...
We report on the first demonstration of a fully suspended 10 m Fabry-Perot cavity incorporating a waveguide grating as the coupling mirror. The cavity was kept on resonance by reading out the length fluctuations via the Pound-Drever-Hall method and employing feedback to the laser frequency. From the achieved finesse of 790 the grating reflectivity was determined to exceed 99.2% at the laser wav...
We experimentally demonstrate a low-loss and low-crosstalk 16-channel 200 GHz-channel-spacing arrayed waveguide grating router (AWGR) with size of 0.67 × 0.37 mm 2 , targeting for C-band wavelength division multiplexing (WDM) interconnect routing applications. As result, the AWGR features channe...
This work aims to discuss a study of numerical simulations the performance arrayed waveguide grating (AWG) and fiber Bragg (FBG) demultiplexers in optical network special class denominated photonic crystal (PCF) considering dispersive non-linear effects. The proposed method is based on wavelength division multiplexing (WDM) configuration PCF. For simulation analysis, commercial OptiGrating soft...
The fabrication of an ion-exchanged waveguide beam deflector containing a photowritten grating is described. The planar waveguide was fabricated by thermal K(+) exchange in a borosilicate glass. The grating was written by photobleaching an absorption defect centered at 330 am, which was created by gamma-ray irradiation of the glass. The bleaching was accomplished with the 351-nm line from an ar...
In this paper, we report on a novel quality-of-service supporting reservation-based medium access control (MAC) protocol for a reliable, scalable, and cost-effective switchless wavelength division multiplexing network. The network is completely passive and is based on an arrayed-waveguide grating (AWG). Each node at the network periphery is equipped with one single fast tunable transceiver for ...
Past X-ray observations by ASCA suggest that warm absorbers (Ovii and Oviii edges) are apparently rare in high luminosity AGNs (quasars) while they are more common in low luminosity AGNs (Seyferts). However, this could be a selection effect if high luminosity AGNs have mostly narrow absorption lines (with no strong bound free edges), which escaped detection by the low resolution of ASCA. To che...
Surface plasmon resonances on bilayer aluminum nanowire gratings are studied in both theory and experiment. It is found that there are two kinds of surface plasmon on the bilayer metallic gating: longitudinal aluminum/dielectric/aluminum slit and lateral aluminum/dielectric interface waveguide mode. The surface plasmon waveguide mode resonance in the slits makes the grating act as a transverse ...
The 3 m toroidal grating monochromator (TGM) VUV beamline at CAMD/LSU was realigned to achieve better illumination of the monochromator gratings with the goal of substantially increasing the fl ux at the higher photon energies. This is partly accomplished through a tilting of the monochromator (by about of 13.5°), with respect to the plane defi ned by the synchrotron, providing a smaller grazin...
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