K
Kerstin Worhoff
Researcher at MESA+ Institute for Nanotechnology
Publications - 186
Citations - 3213
Kerstin Worhoff is an academic researcher from MESA+ Institute for Nanotechnology. The author has contributed to research in topics: Laser & Waveguide (optics). The author has an hindex of 28, co-authored 186 publications receiving 2893 citations.
Papers
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Journal ArticleDOI
Multi-Rate and Multi-Channel Optical Equalizer Based on Photonic Integration
Christos Kouloumentas,Christos Tsokos,Panos Groumas,Lefteris Gounaridis,Adam Raptakis,Elias Mylonas,Efstathios Andrianopoulos,Kerstin Worhoff,K Katarzyna Lawniczuk,Arne Leinse,Hercules Avramopoulos +10 more
TL;DR: In this paper, a photonic integrated circuit (PIC) is used as an optical equalizer (OE) with multi-rate and multi-channel capability, based on the use of micro-ring resonators (MRRs) for the tuning of its delay lines.
Journal ArticleDOI
Low-Loss Highly Tolerant Flip-Chip Couplers for Hybrid Integration of Si 3 N 4 and Polymer Waveguides
Jinfeng Mu,Theoni Alexoudi,Yean Sheng Yong,Sergio A. Vázquez-Córdova,Meindert Dijkstra,Kerstin Worhoff,Jeroen Antonius Maria Duis,Sonia M. García-Blanco +7 more
TL;DR: In this article, low-loss and highly fabrication-tolerant flip-chip bonded vertical couplers under single-mode condition are demonstrated for the integration of a polymer waveguide chip onto the Si3N4/SiO2 passive platform.
Proceedings ArticleDOI
Absorption spectroscopy of complex rare earth ion doped hybrid materials over a broad wavelength range
TL;DR: In this paper, the authors applied a measurement setup to determine several relevant properties of rare-earth doped nanoparticles dispersed in polymer slab waveguides in a single absorption measurement: background absorption of the polymer host material, water absorption, polymer composition (overtones), rare earth concentration, and ligand contribution.
Proceedings ArticleDOI
Broadband polarization-insensitive arrayed waveguide gratings for Raman spectroscopy
Nur Ismail,F. Sun,Gabriel Sengo,Kerstin Worhoff,Alfred Driessen,R.M. de Ridder,Markus Pollnau +6 more
TL;DR: Two arrayed waveguide gratings fabricated in silicon-oxynitride for near infrared Raman spectroscopy exhibit very low losses and polarization insensitivity over a large spectral range of 156 nm and 214 nm, respectively.
Bragg Gratings in Crystalline Waveguides Fabricated by Focused Ion Beam Milling
I. Inurrategi,Feridun Ay,D. Geskus,Shanmugam Aravazhi,V.J. Gadgil,Kerstin Worhoff,Markus Pollnau +6 more
TL;DR: In this article, the results of an optimization study of deeply-etched Bragg gratings in WO4.2:Yb3+ to obtain photonic cavity structures are reported.