Peter Vasil’s research while affiliated with Technische Universität Berlin and other places

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Publications (2)


Automatic Visualization and Graphical Editing of Virtual Modeling Networks for the Open-Source Synth-A-Modeler Compiler
  • Conference Paper

July 2016

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43 Reads

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3 Citations

Lecture Notes in Computer Science

Edgar Berdahl

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Peter Vasil

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Andrew Pfalz

Synth-A-Modeler (SaM) is an open-source environment for developing audio-haptic interactions. It is based on the paradigm that a user develops a virtual model by interconnecting virtual objects and adjusting their parameters. The SaM Designer has been created to help assist users in automatically visualizing virtual models and in graphically editing them. Certain tasks, such as modifying the parameters for a group of objects, can be completed much faster in the Designer than by using a text editor. The SaM Designer was able to automatically visualize 72 test models using an example set of visualization parameters. With these tools, new virtual models such as a “waveguide drum” can be discovered, potentially facilitating the creation of novel audio-haptic interactions.


Fig. 1: (a) The 1 m long spiral waveguide illuminated with red light and (b) near field image of the waveguide output. 
Fig. 2: Measured RI profile of the waveguide at 678 nm. 
Fig. 3: Experimental setup for launch conditions (1) and (3): (a) a 10x microscope objective launch and (b) a 50/125 μm MMF launch with the mode mixer (MM). 
Graded-index Polymer Multimode Waveguides for 100 Gb/s Board-level Data Transmission
  • Conference Paper
  • Full-text available

September 2015

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243 Reads

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16 Citations

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Nikos Bamiedakis

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Peter Vasil

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[...]

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We report enhanced graded-index multimode polymer waveguides with >70GHz×m for MMF launch and >200GHz×m for restricted launch, indicating the capability of on-board waveguide transmission of >100 Gb/s. Simulations using the measured refractive index profile agree well with the experiments.

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Citations (2)


... Furthermore, with restricted launch, BLP of >100 Ghz×m is recorded with a reasonable large offset range (18 × 20 µm 2 ). This indicates that, with proper refractive index engineering [10] [11] [12], multimode polymer waveguide is capable to handle a data rate of over 100Gb/s, which is an important result as traditionally 100Gbps×m is the threshold between the use of optical and copper technology as the transmission link [13]. The economic incentive due to cost reduction by using multimode instead of single-mode transmission may lower down the threshold value and hence promote the use of optical interconnection. ...

Reference:

Development of Multimode Polymeric Waveguide Structure
Graded-index Polymer Multimode Waveguides for 100 Gb/s Board-level Data Transmission

... Synth-A-Modeler (SaM) Compiler by Berdahl and Smith (2012) and Designer by Berdahl et al. (2016) together constitute an interactive development environment for designing forcefeedback interactions with physical models. With SaM, designers interconnect objects from various paradigms (mass interaction, digital waveguides, modal resonators) in a visual programming canvas reminiscent of electronic schematics and mechanical diagrams and compile applications generated with the Faust digital-signal-processing (DSP) framework. ...

Automatic Visualization and Graphical Editing of Virtual Modeling Networks for the Open-Source Synth-A-Modeler Compiler
  • Citing Conference Paper
  • July 2016

Lecture Notes in Computer Science