Picture of Ulrike Höfler

M.Sc. Ulrike Höfler

Technical University of Munich

Associate Professorship of Line Transmission Technology (Prof. Hanik)

Postal address

Postal:
Theresienstr. 90
80333 München

Biography

  • B.Sc. in Electrical and Computer Engineering, Technical University Munich (2017)
  • M.Sc. in Electrical and Computer Engineering, Technical University Munich (2020)
  • Since August 2020 research assistent at the Institute for Communications Engineering, Professorship of Line Transmission Technology

Lehre

  • Optical Communication Systems WS 21/22
  • Optical Communication Systems WS 22/23

Theses

Theses in Progress

Nonlinear Transmission Modeling for UWB Optical Systems

Description

One way to overcome the capacity limitations in the established optical network infrastructure is to extend the optical transmission bandwidth beyond the conventionally used C+L band. In contrast to the modeling of narrow band systems, it is crucial for ultra-wideband (UWB) transmission systems to consider inter-channel stimulated Raman scattering (ISRS).

The student's task is to understand the nonlinear process of SRS and describe possible modeling approaches for UWB optical systems. 

possible literature: 

  • P. Poggiolini et al., Closed Form Expressions of the Nonlinear Interference for UWB Systems 
  • C. Lasagni et al., Generalized Raman Scattering Model and Its Application to Closed-Form GN Model Expressions Beyond the C+L Band

Prerequisites

  • Lecture "Optical Communication Sytems" recommended 
    (not mandatory)

Supervisor:

Publications

2022

  • Norbert Hanik, Tasnad Kernetzky, Yizhao Jia, Ulrike Höfler, Ronald Freund, Colja Schubert, Isaac Sackey, Gregor Ronniger, Lars Zimmermann: Ultra-Broadband Optical Wavelength-Conversion Using Nonlinear Multi-Modal Optical Waveguides. 2022 13th International Symposium on Communication Systems, Network and Digital Signal Processing (CSNDSP), 2022 more… Full text ( DOI )
  • Ulrike Höfler, Norbert Hanik: Phase-Predistortion of Optical On-Off-Keying with Direct Detection to Counteract Fiber Chromatic Dispersion. IEEE Photonics Conference (IPC), 2022 more…
  • Ulrike Höfler, Tasnad Kernetzky, Norbert Hanik: Analysis of Material Susceptibility in Silicon on Insulator Waveguides with Combined Simulation of Four-Wave Mixing and Linear Mode Coupling. Optical and Quantum Electronics, 2022 more… Full text ( DOI )

2021

  • G. Ronniger, I. Sackey, T. Kernetzky, U. Höfler, C. Mai, C. Schubert, N. Hanik, L. Zimmermann, R. Freund, K. Petermann: Efficient Ultra-Broadband C-to-O Band Converter Based on Multi-Mode Silicon-on-Insulator Waveguides. European Conference on Optical Communication (ECOC) 2021, 2021 more…
  • Tasnad Kernetzky, Gregor Ronniger, Ulrike Höfler, Lars Zimmermann, Norbert Hanik: Numerical Optimization and CW Measurements of SOI Waveguides for Ultra-Broadband C-to-O-Band Conversion. European Conference on Optical Communication (ECOC) 2021, 2021 more…
  • Ulrike Höfler: Approximation of Bent Waveguide Characteristics. Doctoral Seminar on Communications, 2021 more…
  • Ulrike Höfler: Modellierung der Material-Suszeptibilität in Silizium-Wellenleitern für FWM-basierende nichtlineare Optik. ITG Workshop Modellierung optischer Komponenten und Systeme , 2021 more…