Results 21 to 30 of about 5,422 (232)
Waveguide array-grating compressors
Applied Physics Letters, 2005 We show that efficient optical pulse compression can be achieved when normally dispersive nonlinear waveguide arrays are used in conjunction with dispersive elements such as gratings or other programmable phase filters. Our computations indicate that the compression resulting from such discrete arrays can be of better quality as compared to that ...
Droulias, Sotiris +3 more
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Superconducting single-photon detector for integrated waveguide spectrometer
EPJ Web of Conferences, 2018 We present our recent achievements in the development of an on-chip spectrometer consisting of arrayed waveguide grating made of Si3N4 waveguides and NbN superconducting single-photon detector.
Korneev Alexander +8 more
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A Single-Chip Integrated Spectrometer via Tunable Microring Resonator Array
IEEE Photonics Journal, 2019 We experimentally demonstrate a spectrometer, which consists of an arrayed waveguide grating (AWG), tunable microring resonator (MRR) array, and waveguide-coupled Ge-on-Si photodetector, all integrated onto a single chip.
Shaonan Zheng +7 more
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Results in Optics, 2021 The core device of dense wavelength division multiplexing (DWDM) system is a wavelength division multiplexer/demultiplexer, among which the arrayed waveguide grating (AWG) device has the most superior optical performances. The optical performances of AWG
Yu Zheng +5 more
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Large-Area Binary Blazed Grating Coupler between Nanophotonic Waveguide and LED
The Scientific World Journal, 2014 A large-area binary blazed grating coupler for the arrayed waveguide grating (AWG) demodulation integrated microsystem on silicon-on-insulator (SOI) was designed for the first time.
Hongqiang Li +7 more
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Mid-IR heterogeneous silicon photonics [PDF]
, 2014 In this paper we discuss silicon-based photonic integrated circuit technology for applications beyond the telecommunication wavelength range. Silicon-on-insulator and germanium-on-silicon passive waveguide circuits are described, as well as the ...
Baets, Roel +29 more
core +1 more source
Modeling and design of irregularly arrayed waveguide gratings
Optics Express, 2007 In this paper we propose a concept of irregularly arrayed waveguide gratings (IAWGs). By replacing regularly arrayed waveguides of conventional AWGs with irregularly arrayed ones, we found theoretically that the IAWGs have arbitrary free spectral ranges and are suitable to provide a large number of channels with relatively smaller circuit regions.
Feng, Xiao, Guangyuan, Li, Anshi, Xu
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IEEE Photonics Journal, 2012 A birefringence compensation technique based on angled star couplers in arrayed waveguide grating (AWG) is experimentally investigated in silica-on-silicon waveguide with B-Ge codoped upper cladding.
Xiang Xia +3 more
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Silicon Waveguide Integrated with Germanium Photodetector for a Photonic-Integrated FBG Interrogator
Nanomaterials, 2020 We report a vertically coupled germanium (Ge) waveguide detector integrated on silicon-on-insulator waveguides and an optimized device structure through the analysis of the optical field distribution and absorption efficiency of the device.
Hongqiang Li +7 more
doaj +1 more source
Effect of mask discretization on performance of silicon arrayed waveguide gratings [PDF]
, 2014 We studied the impact of the lithography mask discretization on silicon arrayed waveguide grating (AWG) performance. When we decreased the mask grid from 5 to 1 nm, we observed an experimental improvement in crosstalk of 2.7-6 dB and cumulative crosstalk
Absil, Philippe +7 more
core +2 more sources