Dana Seyringer

Fachhochschule Vorarlberg · Research Centre for Microtechnology

In this paper, the design of three-dimensional configuration of Y-branch splitter is compared with Multimode Interference splitter. Both splitters use the IP-Dip polymer as a standard material for 3D laser lithography. The optical properties of the splitters for both approaches are discussed and compared.

This paper aims to study the design, simulation, and optimization of low-loss Y-branch passive optical splitters up to 64 output ports for telecommunication applications. For a waveguide channel profile, the standard material silica-on-silicon is used. The Y-splitters are designed and simulated at telecommunication operating wavelength, = 1550 nm....

In this work, we present a significant step toward in vivo ophthalmic optical coherence tomography and angiography on a photonic integrated chip. The diffraction gratings used in spectral-domain optical coherence tomography can be replaced by photonic integrated circuits comprising an arrayed waveguide grating. Two arrayed waveguide grating designs...

This paper presents design, simulation, and optimization of 1x4 multimode interference (MMI) splitter based on polymer waveguide structure. The splitter was designed as a planar structure for an operating wavelength 1.55 µm. The waveguide core size was set to 2x2 µm². The splitter was designed in two software tools: Optiwave and RSoft. The obtained...

This paper presents the design, simulation, and optimization of a 1×128 multimode interference (MMI) splitter with a silica-on-silicon channel profile. This work aims to study the influence of the different S-Bend output waveguide shapes at the end of the MMI coupler on the final optical properties. The 1×128 MMI splitters have been simulated using...

In this paper, low-loss Y-branch splitters up to 128 splitting ratio are designed, simulated, and optimized by using 2D beam propagation method in OptiBPM tool by Optiwave. For an optical waveguide, a silica-on-silicon material platform is used. The splitters were designed as a planar structure for a telecommunication operating wavelength of 1.55 μ...

In this paper, we propose and simulate a new type of three-dimensional (3D) optical splitter based on multimode interference (MMI) for the wavelength of 1550 nm. The splitter was proposed on the square basis with the width of 20 x 20 µm² using the IP-Dip polymer as a standard material for 3D laser lithography. We present the optical field distribut...

This paper describes two different designs of 1×128 passive optical splitters for telecommunication applications. The first splitter consists of cascade arranged directional waveguide branches (Y-branch splitter) with a standard waveguide core size (6x6) μm2. The second splitter is based on multimode interference occurring in a large MMI coupler, w...

In this book chapter, the performance parameters deteriorate significantly with the increasing number of output waveguides (transmitting channels) and therefore it was necessary to develop new AWG design procedures.

This paper presents the design and optimization of 1× 2 N Y-branch optical splitters for telecom applications. A waveguide channel profile, used in the splitter design, is based on a standard silica-on-silicon material platform except for the lengths of the used Y-branches, design parameters such as port pitch between the waveguides and simulation...

We present a new concept of 3D polymer-based 1 × 4 beam splitter for wavelength splitting around 1550 nm. The beam splitter consists of IP-Dip polymer as a core and polydimethylsiloxane (PDMS) Sylgard 184 as a cladding. The splitter was designed and simulated with two different photonics tools and the results show high splitting ratio for single-mo...

We studied an impact of phased array on optical performance and size of SiN based AWG-spectrometers, which plays a significant role in integration on chip. AWG-spectrometer was designed for TM-polarization and 850 nm central wavelength.

Optical splitters are passive optical components, which have found applications in a wide range of telecom, sensing, medical and many other scientific areas. Low-index contrast optical splitters (Silica-on-Silicon (SoS) based waveguide devices) feature many advantages such as low fiber coupling losses and low propagation losses. They are considered...

Progress in integrated photonics enables development of photonics integrated circuits (PIC) with new unique properties and overcomes current limits in information and communication technologies. The effective coupling of optical radiation between telecom optical fiber and photonic integrated circuits is necessary. To address these challenges, we pr...

We demonstrate possibilities of three-dimensional printing technology based on two-photon polymerization applying polymer polydimethylsiloxane (PDMS). This silicone compound is meant for fabrication of photonic integrated circuits using 3D dip-in direct laser writing (DLW). First, a 3D Y-branch splitter was designed for TM-polarized light, working...

We present the design, simulation, and technological verification of a compact 256-channel, 42-GHz silicon nitride based AWG-spectrometer dedicated to the realization of an on-chip spectral domain optical coherence tomography (SD-OCT) system. The spectrometer was designed for TM-polarized light with a central wavelength of 850 nm applying the “AWG-...

This paper presents design, simulation and optimization of 1x8 Y-branch power splitters based on Si/SiO2/SiN/SiOx material platform. For the designs, two different waveguide structures were used, i.e. ridge and rib waveguides. The splitters were designed for 850 nm spectral optical window and the simulations were performed applying FEM and BPM meth...

We present design and simulation of 16-channel, 100-GHz silicon nitride based AWG using BeamPROP simulation engine of RSoft photonic tool. The AWG was designed for TM-polarized light with central wavelength of 850 nm. The input design parameters were calculated applying AWG-Parameters tool. For this purpose, we created a ridge waveguide structure,...

MOTIVATION We present design and simulation of 16-channel, 100-GHz silicon nitride based AWG using BeamPROP simulation engine of RSoft photonic tool. The AWG was designed for TM-polarized light with central wavelength of 850 nm. The input design parameters were calculated applying AWG-Parameters tool. For this purpose, we created a ridge waveguide...

We demonstrate possibilities of three-dimensional printing technology based on two-photon polymerization applying polymer polydimethylsiloxane (PDMS). This silicone compound is meant for fabrication of photonic integrated circuits using 3D dip-in direct laser writing (DLW). First, a 3D Y-branch splitter was designed for TM-polarized light, working...

This paper presents design and simulation of 8-channel, 100-GHz AWGs based on Si/SiO2/SiN/SiOx material platform. For the designs, two different waveguide structures were used, i.e. ridge and rib waveguides. AWGs were designed for central wavelength of 850 nm applying AWG-Parameters tool. The simulations were performed applying FEM and BPM methods...

We present design and simulation of polymer based 8-channel, 100-GHz AWG, designed for central wavelength of 1550 nm. The input design parameters were calculated applying AWG-Parameters tool. The AWG layout was created and the simulations were performed applying commercial photonic tool PHASAR from Optiwave. The achieved transmission characteristic...

We present the technological verification of a size-optimized 160-channel, 50-GHz silicon nitride-based AWG-spectrometer. The spectrometer was designed for TM-polarized light with a central wavelength of 850 nm applying our proprietary “AWG-Parameters” tool. For the simulations of AWG layout, the WDM PHASAR photonics tool from Optiwave was used. Th...

We present the design and simulation of polymer-based photonic components with the focus on the arrayed waveguide gratings (AWG) based optical multiplexers/demultiplexers and optical splitters. All optical componets were designed for 1550 nm operating wavelength. For the AWG design the AWG-Parameters tool was used. This design tool was already appl...

As a leading provider of sensing solutions ams AG is developing semiconductor sensors in a wide variety of fields. One of the key competences of ams AG lies in optical sensing. To widen the company’s portfolio in this field we have been developing processes for fully integrated CMOS compatible photonic components based on Si3N4 in the last few year...

Arrayed Waveguide Grating (AWG) is a passive optical component, which have found applications in a wide range of WDM systems and medical applications. Low-index contrast AWGs (Silica-on-Silicon (SoS) based waveguide devices) feature many advantages such as low fiber coupling losses and low propagation loss. They are considered an attractive DWDM s...

We present simulation of 8-channel, 100-GHz silicon nitride based AWGs using three different commercial photonics tools, namely PHASAR from Optiwave Systems Inc., APSS from Apollo Photonics Inc. and RSoft from Synopsys Inc. For this purpose we created identical waveguide structures and identical AWG layouts in these tools and performed BPM simulati...

We present design and simulation of the low loss silicon nitride based AWG applying our proprietary AWG-Parameters tool. The AWG was designed for TM-polarized light with a central wavelength of 850 nm and simulated applying commercial photonic tool PHASAR from Optiwave. The achieved transmission characteristics were evaluated by AWG-Analyser tool....

We present the design of a 160-channel, 50-GHz Si3N4 based AWG-spectrometer applying our proprietary AWG-Parameters tool. For simulating the AWG layout, we used Optiwave’s WDM PHASAR photonic tool. The simulated spectral response was evaluated applying our in-house developed AWG-Analyzer tool. The AWG was designed for TM-polarized light with a cent...

In this paper, we present various designs of optical splitters for access networks, such as GPON and XG-PON by ITU-T with triple-play services (ie data, voice and video). The presented designs exhibit a step forward, compared to the solutions recommended by the ITU, in terms of performance in transmission systems using WDM. The quality of performan...

We present the design and optimization of 80-channel, 50-GHz Si3N4 based AWG. The AWG was designed for TM-polarized light with a central wavelength of 850 nm. The simulations showed that, while the standard channel count AWGs (up to 40) feature gut optical properties and are relatively easy to design, increasing the channel counts (> 40 channels) l...

The goal of this paper is to design a low-loss 1 × 32 Y-branch optical splitter for optical transmission systems, using two different design tools employing Beam Propagation Method. As a first step, a conventional 1 × 32 Y-branch splitter was designed and simulated in two-dimensional environment of OptiBPM photonic tool. The simulated optical prope...

Today optics and photonics are widely regarded as one of the most important key technologies for this century, having an impact on nearly all areas of our life. To make this topic easily accessible to students at our university we have worked out an extensive photonics tutorial in the field of optical data transmission. Based on this tutorial, an e...

We present the design and simulation of 40-channel, 50-GHz Si3N4 based AWG. To calculate the input design parameters we used our proprietary AWG-Parameters tool. For the simulations of AWG layouts we used PHASAR photonics tool from Optiwave and RSoft tool from Synopsis. The simulated transmission characteristics were then evaluated. The AWG was des...

Optical Access Networks (OAN) mostly use optical splitters to distribute the services from Optical Line Terminal (OLT) on the provider’s side to the subscribers in Optical Network Unit (ONU). Optical splitters are the key components in such access networks as for example GPON and XG-PON by ITU-T. In this paper we investigate the optical properties...

We present the design of 20-channel, 50-GHz Si3N4 based AWG applying our proprietary AWG-Parameters tool. For the simulations of the AWG layout we used PHASAR photonics tool from Optiwave. The simulated transmission characteristics were then evaluated applying our AWG-Analyzer tool. We studied the influence of one of the design parameters – the sep...

Arrayed Waveguide Gratings (AWGs) are considered an attractive DWDM solution because they represent a compact means of offering higher channel count technology, have good performance characteristics, and can be more cost-effective per channel than other methods. However, their performance characteristics depend largely on the optical properties of...

AWe present the design of 8-channel, 100 GHz Si3N4 based AWGs applying our proprietary AWG-Parameters tool. This tool was already used in various silica based AWG designs and also technologically verified. The designed AWGs were simulated by three commercial photonics tools, PHASAR from Optivawe, Apollo Photonics and RSoft. The AWGs were designed f...

We present the design of 8-channel, 100 GHz Si3N4 based AWGs applying our proprietary AWG-Parameters tool. This tool was already used in various silica based AWG designs and also technologically verified. The designed AWGs were simulated by two commercial photonics tools and the achieved transmission characteristics were evaluated. The AWGs were de...

In this paper we present how science can be made accessible to a wide population in the frame of “The night of science” event. This event is the only nation-wide research event in Austria, taking the place every two years, where the domestic institutions, going from the basic research up to the industry, open the doors to a wide population.

In this paper we investigate optical properties of 1×16 splitters based on Y-branch and MMI approaches. These splitters were designed, simulated and the obtained results of both approaches were studies and compared with each other. Additionally, we will show that the used standard waveguide core size (usually 6 × 6 µm 2 to match the diameter of the...

Today, optics and photonics are widely regarded as among the key technologies for this century. Many experts even anticipate that the 21st century will be the century of the photon – much as the 20th century was the century of the electron. Optics and photonics technologies have impact on nearly all areas of our life and cover a wide range of appli...

We present the angular method to correct the channel spacing between transmitted output channels of an AWG. The developed method was applied to 40-channel, 100 GHz AWG and the achieved results confirm excellent correlation between designed channel spacing (100 GHz) and the channel spacing calculated from simulated and measured transmission characte...

This Spotlight provides an overview of the life cycle of arrayed waveguide gratings (AWGs), from design and simulation to evaluation and technological verification. The book describes the AWG design procedure by applying a new software tool. It discusses the appropriateness of different commercially available photonics tools, and their advantages a...

Today, optics and photonics is widely regarded as one of the most important key technologies for this century. Many experts even anticipate that the 21st century will be the century of the photon. Optics and photonics technologies have impact on nearly all areas of our life and cover a wide range of applications in science and industry. However ev...

Optical fibres are widely used in various applications as a medium for optical signals or optical transfer. This transport can be realized on long distance, compared to free space optics, which significantly extends reach of applications. Free space optics and fibre optics are combined in practice to yield the maximum performance of individual comp...

We present the proportional method to correct the channel spacing between the transmitted output channels of an AWG. The developed proportional method was applied to 64-channel, 50 GHz AWG and the achieved results confirm very good correlation between designed channel spacing (50 GHz) and the channel spacing calculated from simulated AWG transmissi...

1 x 8 Y-branch and MMI splitters were designed, simulated and the obtained results of both approaches were studies and compared with each other for such splitters. The core size of the used waveguides is usually 6 x 6 mu m(2) to match the diameter of the single mode input/output fibers, i.e. to keep the coupling loses as low as possible. In this wo...

We present the design and simulation of low loss 1x64 Y-branch optical splitter having the symmetric splitting ratio and small footprint. This was reached by optimizing the used waveguide structure that eliminates the presence of the first mode, causing the asymmetric splitting ratio of the split power over all the output waveguides. This way we we...

In this paper we present the position method to correct the channel spacing between the transmitted channels of an AWG. The developed position method was applied to 20-ch 200 GHz AWG and the achieved results confirm very good correlation between required channel spacing (200 GHz) and the channel spacings calculated from simulated AWG transmission c...

It is well known that the main problem in the Y-branch splitting approach is the processing of the branching point where two waveguides start to separate. This is technologically very difficult; leading generally to an asymmetric splitting ratio causing non-uniformity of the split power over all the output waveguides. In this work we show that not...

Abstract. We present the design, simulation, evaluation, and technological verification of various low-index optical demultiplexers based on arrayed waveguide gratings (AWGs). When designing such optical demultiplexers, a set of input geometrical parameters must be first calculated. They are essential to create AWG layout that will be then simulate...

We report on a design and simulation of silicon on insulator apodized surface diffraction grating fiber to chip coupler by sub-wavelength structure which is compatible with 193 nm laser DUV lithography. The structure of designed fiber to chip coupler consists of two parts: a relatively large tapered segment and a segment with the surface diffractio...

The stand-alone “AWG-Parameters” tool was applied to design various optical multiplexers/demultiplexers based on arrayed waveguide gratings. In this paper we present some additional features of this tool to design a special type of optical multiplexers/demultiplexers, so called “cyclic” or “colourless” AWG. The layout of this AWG was created and si...

A new software tool and its application in the design of optical multiplexers/demultiplexers based on arrayed waveguide gratings is presented. The motivation for this work is the fact that when designing arrayed waveguide gratings a set of geometrical parameters must be first calculated. These parameters are the input for AWG layout that will be cr...

We present the design, simulation and evaluation of low-index 8-channel, 100 GHz optical demultiplexer based on arrayed waveguide gratings (AWG). The AWG structure was designed using AWG-Parameters tool and the layout was created and simulated using three commercial photonic tools: Optiwave, Apollo Photonics and R-Soft. The design was also technolo...

In this paper we present the design and simulation of 128-channel 10 GHz AWG. The design was performed applying our new developed stand-alone software tool, called AWG-Parameters, and simulated by commercial software tool Optiwave. Simulated transmission characteristics were evaluated using AWG-Analyzer tool and calculated transmission parameters c...

In this paper we report on the experimental test set-up for the temperature characterization of optical multiplexers/demultiplexers in the C - telecommunication band. Particularly the temperature change of transmission parameters like polarization dependent loss and insertion loss are investigated. The measurements were performed in the temperature...

A new software tool, called AWG-Analyzer, is developed to evaluate the simulated/measured transmission characteristics of optical multiplexers/demultiplexers based on arrayed waveguide gratings (AWG). The output of the calculation is a set of the transmission parameters like: non-uniformity, adjacent channel crosstalk, non-adjacent channel crosstal...

Arrayed waveguide gratings (AWG) play a key role in dense wavelength division multiplexing (DWDM) systems. While the standard channel count (up to 40) and standard channel spacing (100 GHz or 50 GHz) AWGs feature very good transmission characteristics, increasing the channel counts and narrowing the channel spacings leads to a rapid increase in the...