Dr. Kerstin Wörhoff Profile

Dr. Kerstin Wörhoff

Assistant Professor at LioniX BV

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Author

Publications (21)

Proceedings Article | 13 May 2016 Paper

Photonic hybrid assembly through flexible waveguides

K. Wörhoff, A. Prak, F. Postma, A. Leinse, K. Wu, T. J. Peters, M. Tichem, B. Amaning-Appiah, V. Renukappa, G. Vollrath, J. Balcells-Ventura, P. Uhlig, M. Seyfried, D. Rose, R. Santos, X. J. Leijtens, B. Flintham, M. Wale, D. Robbins

Proceedings Volume 9891, 98911P (2016) https://doi.org/10.1117/12.2227814

KEYWORDS: Assembly equipment, Optical fabrication, Silicon, Silica, Thin films, Semiconducting wafers

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Proceedings Article | 15 March 2016 Paper

Bimorph actuators in thick SiO2 for photonic alignment

Kai Wu, Tjitte-Jelte Peters, Marcel Tichem, Ferry Postma, Albert Prak, Kerstin Wörhoff, Arne Leinse

Proceedings Volume 9753, 975311 (2016) https://doi.org/10.1117/12.2209499

KEYWORDS: Waveguides, Actuators, Microelectromechanical systems, Photonic integrated circuits, Silica, Silicon photonics, Silicon, Modeling, Chromium, Motion models, Finite element methods, Optical alignment, Gold

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Proceedings Article | 27 February 2015 Paper

Spiral amplifiers in a-Al2O3:Er on a silicon chip with 20 dB internal net gain

S. Vázquez-Córdova, E. Bernhardi, Ke. Wörhoff, J. Herek, S. García-Blanco, M. Pollnau

Proceedings Volume 9365, 93650M (2015) https://doi.org/10.1117/12.2077503

KEYWORDS: Waveguides, Ions, Doping, Amplifiers, Silicon, Erbium, Neodymium, Optical amplifiers, Wavelength division multiplexing, Semiconducting wafers

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Proceedings Article | 1 May 2014 Paper

Erbium-doped spiral amplifiers with 20 dB gain on a silicon chip

S. Vázquez-Córdova, E. Bernhardi, K. Wörhoff, S. García-Blanco, M. Pollnau

Proceedings Volume 9133, 913308 (2014) https://doi.org/10.1117/12.2052298

KEYWORDS: Waveguides, Optical amplifiers, Erbium, Silicon, Channel waveguides, Wave propagation, Light wave propagation, Absorption, Amplifiers, Semiconductor lasers

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Proceedings Article | 18 June 2013 Paper

Advanced integrated spectrometer designs for miniaturized optical coherence tomography systems

B. Akca, B. Považay, L. Chang, A. Alex, K. Wörhoff, R. de Ridder, W. Drexler, M. Pollnau

Proceedings Volume 8802, 880202 (2013) https://doi.org/10.1117/12.2032504

KEYWORDS: Optical coherence tomography, Spectroscopy, Polarization, Imaging systems, System integration, Waveguides, Refractive index, In vivo imaging, Spectrometer engineering, Stars

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Proceedings Article | 6 March 2013 Paper

Rare-earth-ion-doped ultra-narrow-linewidth lasers on a silicon chip and applications to intra-laser-cavity optical sensing

E. Bernhardi, R. de Ridder, K. Wörhoff, M. Pollnau

Proceedings Volume 8599, 859909 (2013) https://doi.org/10.1117/12.2012520

KEYWORDS: Microwave radiation, Phase shifts, Waveguides, Semiconductor lasers, Waveguide lasers, Silicon, Fiber Bragg gratings, Reflectivity, Laser applications, Sensors

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Proceedings Article | 2 February 2012 Paper

Biophotonic sensors on a silicon chip for Raman spectroscopy and optical coherence tomography

Markus Pollnau, Nur Ismail, B. Imran Akca, Kerstin Wörhoff, René de Ridder

Proceedings Volume 8266, 826602 (2012) https://doi.org/10.1117/12.906998

KEYWORDS: Raman spectroscopy, Optical coherence tomography, Waveguides, Spectroscopy, Silicon, Integrated optics, Biomedical optics, Signal attenuation, Confocal microscopy, Polarization

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Proceedings Article | 17 January 2011 Paper

Nd-doped waveguide amplifiers for heterogeneous integration in optical backplanes

Feridun Ay, Jing Yang, Tobias Lamprecht, Kerstin Wörhoff, Sonia García-Blanco, Alfred Driessen, Folkert Horst, Bert Offrein, Markus Pollnau

Proceedings Volume 7942, 79420Q (2011) https://doi.org/10.1117/12.873981

KEYWORDS: Waveguides, Polymers, Optical amplifiers, Channel waveguides, Polymer multimode waveguides, Integrated optics, Ions, Channel projecting optics, Signal attenuation, Wave propagation

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Proceedings Article | 18 February 2010 Paper

Efficiency of integrated waveguide probes in the detection of fluorescence and backscattered light

N. Ismail, F. Sun, F. Civitci, K. Wörhoff, R. de Ridder, M. Pollnau, A. Driessen

Proceedings Volume 7559, 755903 (2010) https://doi.org/10.1117/12.839910

KEYWORDS: Waveguides, Scattering, Light scattering, Raman scattering, Fluorescence spectroscopy, Luminescence, Integrated optics, Raman spectroscopy, Statistical modeling, Optical fibers

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Proceedings Article | 16 February 2010 Paper

On-chip integrated lasers in Al2O3:Er on silicon

M. Pollnau, J. Bradley, F. Ay, E. Bernhardi, R. de Ridder, K. Wörhoff

Proceedings Volume 7605, 76050M (2010) https://doi.org/10.1117/12.845842

KEYWORDS: Erbium, Silicon, Waveguides, Integrated optics, Channel waveguides, Optical amplifiers, Resonators, Semiconductor lasers, Absorption, Output couplers

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Proceedings Article | 12 February 2010 Paper

Rare-earth-ion-doped Al2O3 for integrated optical amplification

K. Wörhoff, J. D. Bradley, L. Agazzi, M. Pollnau

Proceedings Volume 7604, 760408 (2010) https://doi.org/10.1117/12.839188

KEYWORDS: Erbium, Waveguides, Integrated optics, Channel waveguides, Silicon, Optical amplifiers, Picosecond phenomena, Eye, Absorption, Polarization

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Proceedings Article | 12 February 2010 Paper

High performance optical waveguides based on boron and phosphorous doped silicon oxynitride

Fei Sun, Alfred Driessen, Kerstin Wörhoff

Proceedings Volume 7604, 760403 (2010) https://doi.org/10.1117/12.845634

KEYWORDS: Annealing, Refractive index, Channel waveguides, Silicon, Hydrogen, FT-IR spectroscopy, Boron, Absorption, Scanning electron microscopy, Plasma enhanced chemical vapor deposition

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Proceedings Article | 1 May 2008 Paper

Optimization of Al2O3:Er3+ waveguide technology for active integrated optical devices

Kerstin Wörhoff, Jonathan Bradley, Feridun Ay, Dimitri Geskus, Tom Blauwendraat, Markus Pollnau

Proceedings Volume 6996, 699618 (2008) https://doi.org/10.1117/12.781066

KEYWORDS: Waveguides, Erbium, Sputter deposition, Absorption, Channel waveguides, Integrated optics, Thin films, Optical amplifiers, Planar waveguides, Refractive index

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Proceedings Article | 9 August 2007 Paper

Rare-earth-ion-doped Al2O3 waveguides for active integrated optical devices

Jonathan Bradley, Feridun Ay, Tom Blauwendraat, Kerstin Wörhoff, Markus Pollnau

Proceedings Volume 6731, 67310A (2007) https://doi.org/10.1117/12.751890

KEYWORDS: Etching, Aluminum, Waveguides, Channel waveguides, Gases, Erbium, Reactive ion etching, Silicon, Chlorine, Optical lithography

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Proceedings Article | 8 September 2004 Paper

Flip-chip assembly for photonic circuits

Kerstin Worhoff, Rene Heideman, Melis Jan Gilde, Kristian Blidegn, Matthias Heschel, Hans van den Vlekkert

Proceedings Volume 5454, (2004) https://doi.org/10.1117/12.545952

KEYWORDS: Sensors, Integrated optics, Silicon, Packaging, Semiconducting wafers, Etching, Lithography, Zinc oxide, Photonic integrated circuits, Standards development

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Proceedings Article | 18 August 2004 Paper

Tolerance of polarization independent waveguides for communication devices

Kerstin Worhoff, Chris Roeloffzen, Rene de Ridder, Gabriel Sengo, Lucie Hilderink, Alfred Driessen

Proceedings Volume 5451, (2004) https://doi.org/10.1117/12.545956

KEYWORDS: Waveguides, Polarization, Birefringence, Tolerancing, Silicon, Integrated optics, Refractive index, Fiber couplers, Cladding, Optical communications

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Proceedings Article | 3 April 2003 Paper

SiON technology for integrated optical sensors

Paul Lambeck, Kerstin Worhoff

Proceedings Volume 4944, (2003) https://doi.org/10.1117/12.473582

KEYWORDS: Sensors, Silicon, Refractive index, Integrated optics, Polarization, Sensing systems, Semiconducting wafers, Molecules, Telecommunications, Cladding

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Proceedings Article | 11 March 2003 Paper

Passband-flattened periodic multi/demultiplexer using a Mach-Zehnder interferometer with ring resonator fabricated in SiON waveguide technology

Chris Roeloffzen, Rene de Ridder, Gabriel Sengo, Kerstin Worhoff, Alfred Driessen

Proceedings Volume 4947, (2003) https://doi.org/10.1117/12.468252

KEYWORDS: Waveguides, Dispersion, Optical filters, Resonators, Mach-Zehnder interferometers, Birefringence, Channel waveguides, Chromium, Directional couplers, Tunable filters

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Proceedings Article | 4 December 1998 Paper

Silica-based rib waveguides for integrated optics using multimode interference

N. Lagali, R. Ian MacDonald, M. Paiam, Kerstin Woerhoff, Alfred Driessen

Proceedings Volume 3491, (1998) https://doi.org/10.1117/12.328759

KEYWORDS: Waveguides, Integrated optics, Brain-machine interfaces, Polarization, Silica, Plasma enhanced chemical vapor deposition, Etching, Switches, Silicon, Multimode interference devices

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Proceedings Article | 22 June 1998 Paper

Silicon-based integrated Mach-Zehnder interferometer with acousto-optic modulation: a biosensor application

Christophe Gorecki, Eric Bonnotte, Kerstin Woerhoff, Hideki Kawakatsu

Proceedings Volume 3419, 34191E (1998) https://doi.org/10.1117/12.311037

KEYWORDS: Silicon, Mach-Zehnder interferometers, Biosensors, Acousto-optics, Modulation, Integrated optics, Zinc oxide, Thin film devices, Thin films, Transducers

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Proceedings Article | 24 September 1997 Paper

Optimization of LPCVD silicon oxynitride growth to large refractive index homogeneity and layer thickness uniformity

Kerstin Woerhoff, Paul Lambeck, H. Albers, Oscar Noordman, Niko van Hulst, Th. Popma

Proceedings Volume 3099, (1997) https://doi.org/10.1117/12.281235

KEYWORDS: Refractive index, Silicon, Low pressure chemical vapor deposition, Protactinium, Semiconducting wafers, Waveguides, Silicon films, Prisms, Thin films, Birefringence

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Showing 5 of 21 publications

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