Refine
Year of publication
Document Type
- Conference Proceeding (81)
- Article (26)
- Part of a Book (2)
- Book (1)
- Habilitation (1)
Institute
Language
- English (110)
- Multiple languages (1)
Keywords
- Y-branch splitter (11)
- arrayed waveguide gratings (11)
- photonics (8)
- integrated optics (6)
- Arrayed waveguide gratings (5)
- MMI splitter (5)
- OCT (5)
- insertion loss (5)
- AWG (4)
- AWG design (4)
- AWG-spectrometer (4)
- MMI splitters (4)
- Optical coherence tomography (4)
- silicon nitride (4)
- 3D MMI splitter (3)
- Couplers (3)
- Crosstalk (3)
- Photonics (3)
- Telecommunications (3)
- frequency 100 GHz (3)
- polymers (3)
- transmission characteristics (3)
- wavelength division multiplexing (3)
- AWG-Analyzer tool (2)
- AWG-parameters tool (2)
- Light propagation (2)
- Optical device fabrication (2)
- Optical fibers (2)
- Optical splitter (2)
- Polymer (2)
- Refractive index (2)
- Standards (2)
- Y-branch (2)
- arrayed waveguide grating (2)
- demultiplexing equipment (2)
- integrated photonics (2)
- optical beam splitters (2)
- optical communication equipment (2)
- optical properties (2)
- optical splitting (2)
- optical waveguides (2)
- rib waveguides (2)
- telecommunication (2)
- telecommunications (2)
- #kinderuni4you (1)
- 128-channel 10 GHz AWG design (1)
- 128-channel 10 GHz AWG simulation (1)
- 1x128 MMI splitter (1)
- 2x2 optical switch (1)
- 3D 1×4 Multimode Interference Splitter (1)
- 3D MMI splitters (1)
- 3D Y-branch splitter (1)
- 3D optical splitters (1)
- 3D splitter (1)
- AWG channel spacing (1)
- AWG design tool (1)
- AWG software tool (1)
- AWG transmission parameters (1)
- AWG-Parameters (1)
- AWG-Spectrometer (1)
- AWG-based demultiplexers (1)
- AWG-parameter layout (1)
- AWG-parameter tool (1)
- Active alignment (1)
- Adaptive optics (1)
- Apollo photonics (1)
- Automated Adjustment (1)
- CMOS-Compatible (1)
- Channel spacing (1)
- Characterization (1)
- Children university (1)
- Coupling of Fiber Array (1)
- Coupling structure (1)
- Covid-19 crisis (1)
- DLW (1)
- DWDM (1)
- FTTx (1)
- FTTx networks (1)
- Fiber arrays (1)
- Fibre array (1)
- Fs-laser ablation (1)
- GPON access networks (1)
- High-speed optical techniques (1)
- IP-Dip polymer (1)
- Industry (1)
- LIPPS (1)
- Layout (1)
- Light (1)
- Light's got it! (1)
- Loss measurement (1)
- MMI (1)
- MMI Splitter (1)
- Multimode interferece (1)
- Noise measurement (1)
- OCT on-chip (1)
- OCT-spectrometer (1)
- Optical coupling (1)
- Optical crosstalk (1)
- Optical fiber sensors (1)
- Optical losses (1)
- Optical performance (1)
- Optical polarization (1)
- Optical properties (1)
- Optical refraction (1)
- Optical transmission systems (1)
- Optiwave photonic tool (1)
- Optiwave software tool (1)
- PICs (1)
- PON (1)
- Photonics Explorer (1)
- Photonics integrated circuit (1)
- Polymer AWG (1)
- Polymer based optical splitters (1)
- Propagation losses (1)
- R-soft photonic tool (1)
- S-Bend (1)
- Semiconductor device measurement (1)
- Sensing applications (1)
- Sensor (1)
- Shape (1)
- Si3N4 (1)
- Si3N4 based AWG spectrometer (1)
- Si3N4 based AWGs (1)
- Si3N4 waveguides (1)
- SiN Photonics (1)
- SiN passive optical components (1)
- SiO2 (1)
- Spectral multiplex (1)
- Splitter design (1)
- TM-polarized light (1)
- Telekommunikation (1)
- Temperature (1)
- Temperature characterization (1)
- Temperature stability (1)
- Ultra-Dense WDM (1)
- WDM-PON system (1)
- Waveguide photonic building blocks s (1)
- Wavelength measurement (1)
- XG-PON access networks (1)
- Y-branch optical splitter (1)
- Y-branch waveguide shape modelling (1)
- absorption spectra (1)
- access network (1)
- asymmetric splitting ratio (1)
- background noise (1)
- beam propagation method (1)
- colourless 8-channel AWG (1)
- colourless AWG (1)
- commercial photonics software tool (1)
- commercial photonics tools (1)
- concept (1)
- cyclic AWG (1)
- design (1)
- design and simulation (1)
- direct laser writing lithography (1)
- femtosecond laser processing (1)
- fiber array (1)
- frequency 10 GHz (1)
- gas sensing (1)
- high channel Y-branch splitter (1)
- high channel count AWG (1)
- high index contrast AWG (1)
- high-index contrast AWG (1)
- information and communication technology (1)
- laser ablation (1)
- laser writing optical lithography (1)
- light polarisation (1)
- light propagation (1)
- light transmission (1)
- low loss 1×64 y-branch splitter (1)
- low-index 8-channel optical demultiplexer (1)
- medical diagnostic imaging applications (1)
- miniaturization (1)
- modelling (1)
- multimode interference splitter (1)
- multiplexing equipment (1)
- narrow channel spacing AWG (1)
- optical coherence tomography (1)
- optical communication systems (1)
- optical datatransmissison (1)
- optical design (1)
- optical design techniques (1)
- optical fibre losses (1)
- optical fibre networks (1)
- optical gas sensors (1)
- optical multiplexers//demultiplexers (1)
- optical noise (1)
- optical power splitter (1)
- optical splitters (1)
- optical switch (1)
- optical transmission systems (1)
- packaging (1)
- passive optical networks (1)
- photonic integrated circuit (1)
- photonic integrated circuits (1)
- photonics chip butt coupling (1)
- photonics integrated circuit (1)
- photonics integrated circuits (1)
- polarization dependent loss. (1)
- polymer (1)
- power splitter (1)
- rib waveguide (1)
- ridge waveguide (1)
- ridge waveguides (1)
- sensor (1)
- silica based AWG designs (1)
- silicon compounds (1)
- simulated transmission characteristics (1)
- small footprint (1)
- spectral domain OCT (1)
- split power (1)
- splitter (1)
- splitting properties (1)
- stand-alone software tool (1)
- symmetric splitting ratio (1)
- temperature sensitivity of parameters (1)
- tool design (1)
- ultra-DWDM (1)
- ultra-dense wavelength division multiplexing (1)
- waveguide structure (1)
- waveguide tapers (1)
- waveguides (1)
- wavelength 850 nm (1)
Femtosecond laser ablation on Si generates 2D ripple structures, known as laser induced periodic surface structures (LIPSS) and pinholes. We fabricated membranes with 20 to 50 μm thickness perforated by an array of tapered pinholes up to 5 μm in diameter and 10 to 20 μm spacing. Within several micrometer the pinholes transform into hollow photonic waveguides with constant diameter from 1μm to 2μm. Such structures offer a 3D photonic coupling device for polymer Y-branch- and MMI-splitter. We measured a considerable change of electrical resistivity for 500 ppm H2 in air using Si/SiO2/TiO2 substrates with 2D LIPSS. We propose to investigate 3D waveguide arrays also for photonic-chemical sensors.
By a simple femtosecond laser process, we fabricated metal-oxide/gold composite films for electrical and optical gas sensors. We designed a dripple wavelength AWG-spectrometer, matched to the plasma absorption wavelength region of the composite films. H2/CO absorptions fit well with the AWG design for multi gas detection sensor arrays
Semiconducting metal oxides are widely used for solar cells, poto-catalysis, bio-active materials and gas sensors. Besides the material properties of the used semiconductor,the specific surface topology of the sensor determines the device performance. We investigate the preparation and transfer suitable metals onto LIPPS structures on glass for gas sensing applications.
Silicon nanophotonics
(2013)
In this paper, a 256-channel, 10-GHz arrayed waveguide gratings demultiplexer for ultra-dense wavelength division multiplexing was designed using an in-house developed tool called AWG-Parameters. The AWG demultiplexer was designed for a central wavelength of 1550 nm and the structure was simulated in PHASAR tool from Optiwave. Two different AWG designs were developed and the influence of the design parameters on the AWG performance was studied.
We present 256-channel, 25-GHz AWG designed for ultra-dense wavelength division multiplexing. For the design two in-house developed tools were used: AWG-Parameters tool for the calculation of input design parameters and AWGAnalyser tool, used to evaluate the simulated transmission characteristics. The AWG structure was designed for AWG central wavelength of 1550 nm and simulated with PHASAR tool from Optiwave. To keep the size of AWG structure as small as possible the number of waveguides in the phased array was tested. The simulations show that there is a certain minimum number of phased array waveguides necessary to reach sufficient AWG performance. After optimization, the AWG structure reached 10 cm x 11 cm in size and satisfying optical properties.
Arrayed Waveguide Grating (AWG) is a passive optical component, which have found applications in a wide range of photonic applications including telecommunications and medicine. Silica-on-Silicon (SoS) based AWGs use a low refractive-index contrast between the core (waveguide) and the cladding which leads to some significant advantages such as low propagation losses and low fiber coupling losses between the AWG waveguides and the fibres. Therefore, they are an attractive DWDM solution offering higher channel count technology and good performance characteristics compared to other methods. However, the very low refractive-index contrast means the bending radius of the waveguides needs to be very large (on the order of several millimeters) and may not fall below a particular critical value to suppress bending losses. As a result, silica-based waveguide devices usually have a very large size that limits the integration density of SiO2-based photonic integrated devices. High-index contrast AWGs (such as silicon, silicon nitride or polymer-based waveguide devices) feature much smaller waveguide size compared to low index contrast AWGs. Such compact devices can easily be implemented on a chip and have already found applications in emerging applications such as optical sensors, devices for DNA diagnostics and optical spectrometers for infrared spectroscopy.In this work, we present the design, simulation, technological verification and applications of both, the low-index contrast and high-index contrast AWGs. For telecommunication applications AWG-MUX/Demux with up to 128-channels will be presented. For medical applications the AWG-spectrometer with up to 512-channels will be presented.This work was carried out in the framework of the projects: ADOPT No. SK-AT-20-0012, NOVASiN No. SK-AT-20-0017 and AUTOPIC No. APVV-17-0662 from Slovak research and development agency of Ministry of Education, Science, Research and Sport of the Slovak Republic and No. SK 07/2021 and SK 08/2021 from Austrian Agency for International Cooperation in Education and Research (OeAD-GmbH); and project PASTEL, no. 2020-10-15-001, funded by SAIA.
We present design, simulation and optimization of polymer based 16-channel, 100-GHz AWG designed for central wavelength of 1550 nm. The input design parameters were calculated applying AWG-Parameters tool. The simulations were performed applying a commercial photonic tool PHASAR from Optiwave. The achieved transmission characteristics were evaluated by AWG-Analyzer tool and show a satisfying agreement between designed and simulated AWG optical properties. Finally, the influence of the number of phased array (PA) waveguides on the AWG performance was studied. The results show that there is a certain minimum number of PA waveguides necessary to reach sufficient AWG performance.